SDDM suddenly coredumping

I have installed the KDE spin of Manjaro on a Raspberry Pi 4. The initial installation works fine, but once I did a full upgrade and rebooted, I got an error where the Simple Desktop Display Manager kept crashing.

I started over with a second SD card, and the same thing happened. The initial install was fine, but subsequent reboots after doing a full upgrade failed to start SDDM.

This system had been running for several days with no problems, so I think this was caused by a recent update.

More information: I tried Manjaro-ARM-xfce-rpi4-19.12.1.img.xz and it has similar problems. The initial install worked - I rebooted several times, and the greeter always started running normally.

Then I ran an upgrade: pacman -Suy

I then rebooted, and did not get the greeter. I don't see a message about anything crashing; the display simply has part of the kernel startup messages. The last one is about "brcmfmac: power management disabled".

I can connect in via ssh, so the system is basically running, but the graphics portion is not functional.

I looked in /var/log/Xorg.0.log which contains the text shown below. There is an illegal instruction error at 0x7f8c7efbc8. I should add that this Pi has 4 GB of RAM.

[foo@pi4 log]$ cat Xorg.0.log
[    14.327] 
X.Org X Server 1.20.6
X Protocol Version 11, Revision 0
[    14.327] Build Operating System: Linux Arch Linux
[    14.327] Current Operating System: Linux pi4 4.19.89-1-MANJARO-ARM #1 SMP PREEMPT Mon Jan 6 15:58:11 UTC 2020 aarch64
[    14.327] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 cma=64M cma=256M video=HDMI-A-1:1920x1080M@60,margin_left=0,margin_right=0,margin_top=0,margin_bottom=0 smsc95xx.macaddr=DC:A6:32:5B:32:8F vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  root=/dev/mmcblk0p2 rw rootwait console=ttyS0,115200 console=tty1 selinux=0 plymouth.enable=0 smsc95xx.turbo_mode=N dwc_otg.lpm_enable=0 kgdboc=ttyS0,115200 elevator=noop snd-bcm2835.enable_compat_alsa=0
[    14.327] Build Date: 04 January 2020  11:18:16AM
[    14.327]  
[    14.327] Current version of pixman: 0.38.4
[    14.328]    Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
[    14.328] Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    14.328] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Jan  9 21:27:19 2020
[    14.328] (==) Using config directory: "/etc/X11/xorg.conf.d"
[    14.328] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    14.328] (==) No Layout section.  Using the first Screen section.
[    14.328] (==) No screen section available. Using defaults.
[    14.329] (**) |-->Screen "Default Screen Section" (0)
[    14.329] (**) |   |-->Monitor "<default monitor>"
[    14.329] (==) No monitor specified for screen "Default Screen Section".
        Using a default monitor configuration.
[    14.329] (==) Automatically adding devices
[    14.329] (==) Automatically enabling devices
[    14.329] (==) Automatically adding GPU devices
[    14.329] (==) Automatically binding GPU devices
[    14.329] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    14.329] (WW) The directory "/usr/share/fonts/misc" does not exist.
[    14.329]    Entry deleted from font path.
[    14.329] (WW) The directory "/usr/share/fonts/OTF" does not exist.
[    14.329]    Entry deleted from font path.
[    14.329] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[    14.329]    Entry deleted from font path.
[    14.329] (WW) The directory "/usr/share/fonts/100dpi" does not exist.
[    14.329]    Entry deleted from font path.
[    14.329] (WW) The directory "/usr/share/fonts/75dpi" does not exist.
[    14.329]    Entry deleted from font path.
[    14.329] (==) FontPath set to:
        /usr/share/fonts/TTF
[    14.329] (==) ModulePath set to "/usr/lib/xorg/modules"
[    14.329] (II) The server relies on udev to provide the list of input devices.
        If no devices become available, reconfigure udev or disable AutoAddDevices.
[    14.329] (II) Module ABI versions:
[    14.329]    X.Org ANSI C Emulation: 0.4
[    14.329]    X.Org Video Driver: 24.0
[    14.329]    X.Org XInput driver : 24.1
[    14.329]    X.Org Server Extension : 10.0
[    14.330] (++) using VT number 7

[    14.330] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[    14.332] (II) xfree86: Adding drm device (/dev/dri/card1)
[    14.348] (II) xfree86: Adding drm device (/dev/dri/card0)
[    14.349] (II) no primary bus or device found
[    14.349]    falling back to /sys/devices/platform/soc/soc:gpu/drm/card1
[    14.349] (II) LoadModule: "glx"
[    14.349] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    14.353] (II) Module glx: vendor="X.Org Foundation"
[    14.353]    compiled for 1.20.6, module version = 1.0.0
[    14.353]    ABI class: X.Org Server Extension, version 10.0
[    14.353] (==) Matched modesetting as autoconfigured driver 0
[    14.353] (==) Matched fbdev as autoconfigured driver 1
[    14.353] (==) Assigned the driver to the xf86ConfigLayout
[    14.353] (II) LoadModule: "modesetting"
[    14.353] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[    14.354] (II) Module modesetting: vendor="X.Org Foundation"
[    14.355]    compiled for 1.20.6, module version = 1.20.6
[    14.355]    Module class: X.Org Video Driver
[    14.355]    ABI class: X.Org Video Driver, version 24.0
[    14.355] (II) LoadModule: "fbdev"
[    14.355] (WW) Warning, couldn't open module fbdev
[    14.355] (EE) Failed to load module "fbdev" (module does not exist, 0)
[    14.355] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    14.364] (II) modeset(0): using drv /dev/dri/card1
[    14.364] (II) modeset(0): Creating default Display subsection in Screen section
        "Default Screen Section" for depth/fbbpp 24/32
[    14.364] (==) modeset(0): Depth 24, (==) framebuffer bpp 32
[    14.364] (==) modeset(0): RGB weight 888
[    14.364] (==) modeset(0): Default visual is TrueColor
[    14.364] (II) Loading sub module "glamoregl"
[    14.364] (II) LoadModule: "glamoregl"
[    14.365] (II) Loading /usr/lib/xorg/modules/libglamoregl.so
[    14.373] (II) Module glamoregl: vendor="X.Org Foundation"
[    14.373]    compiled for 1.20.6, module version = 1.0.1
[    14.373]    ABI class: X.Org ANSI C Emulation, version 0.4
[    14.532] (II) modeset(0): glamor X acceleration enabled on V3D 4.2
[    14.532] (II) modeset(0): glamor initialized
[    14.566] (II) modeset(0): Output HDMI-1 has no monitor section
[    14.600] (II) modeset(0): EDID for output HDMI-1
[    14.600] (II) modeset(0): Manufacturer: ACI  Model: 22d3  Serial#: 29292
[    14.600] (II) modeset(0): Year: 2012  Week: 19
[    14.600] (II) modeset(0): EDID Version: 1.3
[    14.600] (II) modeset(0): Digital Display Input
[    14.601] (II) modeset(0): Max Image Size [cm]: horiz.: 48  vert.: 27
[    14.601] (II) modeset(0): Gamma: 2.20
[    14.601] (II) modeset(0): DPMS capabilities: Off
[    14.601] (II) modeset(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 
[    14.601] (II) modeset(0): First detailed timing is preferred mode
[    14.601] (II) modeset(0): redX: 0.638 redY: 0.331   greenX: 0.308 greenY: 0.625
[    14.601] (II) modeset(0): blueX: 0.154 blueY: 0.072   whiteX: 0.313 whiteY: 0.329
[    14.601] (II) modeset(0): Supported established timings:
[    14.601] (II) modeset(0): 720x400@70Hz
[    14.601] (II) modeset(0): 640x480@60Hz
[    14.601] (II) modeset(0): 640x480@67Hz
[    14.601] (II) modeset(0): 640x480@75Hz
[    14.601] (II) modeset(0): 800x600@56Hz
[    14.601] (II) modeset(0): 800x600@60Hz
[    14.601] (II) modeset(0): 800x600@72Hz
[    14.601] (II) modeset(0): 800x600@75Hz
[    14.601] (II) modeset(0): 832x624@75Hz
[    14.601] (II) modeset(0): 1024x768@60Hz
[    14.601] (II) modeset(0): 1024x768@70Hz
[    14.601] (II) modeset(0): 1024x768@75Hz
[    14.602] (II) modeset(0): 1280x1024@75Hz
[    14.602] (II) modeset(0): Manufacturer's mask: 0
[    14.602] (II) modeset(0): Supported standard timings:
[    14.602] (II) modeset(0): #0: hsize: 1920  vsize 1080  refresh: 60  vid: 49361
[    14.602] (II) modeset(0): #1: hsize: 1280  vsize 960  refresh: 60  vid: 16513
[    14.602] (II) modeset(0): #2: hsize: 1280  vsize 1024  refresh: 60  vid: 32897
[    14.602] (II) modeset(0): #3: hsize: 1440  vsize 900  refresh: 60  vid: 149
[    14.602] (II) modeset(0): #4: hsize: 1680  vsize 1050  refresh: 60  vid: 179
[    14.602] (II) modeset(0): #5: hsize: 1152  vsize 864  refresh: 75  vid: 20337
[    14.602] (II) modeset(0): #6: hsize: 1280  vsize 720  refresh: 60  vid: 49281
[    14.602] (II) modeset(0): #7: hsize: 1280  vsize 800  refresh: 60  vid: 129
[    14.602] (II) modeset(0): Supported detailed timing:
[    14.602] (II) modeset(0): clock: 148.5 MHz   Image Size:  475 x 267 mm
[    14.602] (II) modeset(0): h_active: 1920  h_sync: 2008  h_sync_end 2052 h_blank_end 2200 h_border: 0
[    14.602] (II) modeset(0): v_active: 1080  v_sync: 1084  v_sync_end 1089 v_blanking: 1125 v_border: 0
[    14.602] (II) modeset(0): Serial No: C5LMTF029292
[    14.602] (II) modeset(0): Ranges: V min: 50 V max: 75 Hz, H min: 24 H max: 83 kHz, PixClock max 175 MHz
[    14.602] (II) modeset(0): Monitor name: ASUS VS229
[    14.602] (II) modeset(0): Supported detailed timing:
[    14.602] (II) modeset(0): clock: 27.0 MHz   Image Size:  475 x 267 mm
[    14.602] (II) modeset(0): h_active: 720  h_sync: 736  h_sync_end 798 h_blank_end 858 h_border: 0
[    14.602] (II) modeset(0): v_active: 480  v_sync: 489  v_sync_end 495 v_blanking: 525 v_border: 0
[    14.602] (II) modeset(0): Supported detailed timing:
[    14.603] (II) modeset(0): clock: 74.2 MHz   Image Size:  475 x 267 mm
[    14.603] (II) modeset(0): h_active: 1280  h_sync: 1390  h_sync_end 1430 h_blank_end 1650 h_border: 0
[    14.603] (II) modeset(0): v_active: 720  v_sync: 725  v_sync_end 730 v_blanking: 750 v_border: 0
[    14.603] (II) modeset(0): Supported detailed timing:
[    14.603] (II) modeset(0): clock: 74.2 MHz   Image Size:  475 x 267 mm
[    14.603] (II) modeset(0): h_active: 1280  h_sync: 1720  h_sync_end 1760 h_blank_end 1980 h_border: 0
[    14.603] (II) modeset(0): v_active: 720  v_sync: 725  v_sync_end 730 v_blanking: 750 v_border: 0
[    14.603] (II) modeset(0): Supported detailed timing:
[    14.603] (II) modeset(0): clock: 27.0 MHz   Image Size:  475 x 267 mm
[    14.603] (II) modeset(0): h_active: 720  h_sync: 732  h_sync_end 796 h_blank_end 864 h_border: 0
[    14.603] (II) modeset(0): v_active: 576  v_sync: 581  v_sync_end 586 v_blanking: 625 v_border: 0
[    14.603] (II) modeset(0): Number of EDID sections to follow: 1
[    14.603] (II) modeset(0): EDID (in hex):
[    14.603] (II) modeset(0):   00ffffffffffff000469d3226c720000
[    14.603] (II) modeset(0):   1316010380301b782a7ca5a3544ea027
[    14.603] (II) modeset(0):   125054b7ef00d1c0814081809500b300
[    14.603] (II) modeset(0):   714f81c08100023a801871382d40582c
[    14.603] (II) modeset(0):   4500db0b1100001e000000ff0043354c
[    14.603] (II) modeset(0):   4d54463032393239320a000000fd0032
[    14.603] (II) modeset(0):   4b185311000a202020202020000000fc
[    14.603] (II) modeset(0):   00415355532056533232390a20200129
[    14.603] (II) modeset(0):   020322714f0102031112130414050e0f
[    14.603] (II) modeset(0):   1d1e1f10230917078301000065030c00
[    14.603] (II) modeset(0):   10008c0ad08a20e02d10103e9600db0b
[    14.603] (II) modeset(0):   11000018011d007251d01e206e285500
[    14.603] (II) modeset(0):   db0b1100001e011d00bc52d01e20b828
[    14.603] (II) modeset(0):   5540db0b1100001e8c0ad09020403120
[    14.603] (II) modeset(0):   0c405500db0b11000018000000000000
[    14.603] (II) modeset(0):   000000000000000000000000000000bd
[    14.603] (II) modeset(0): Printing probed modes for output HDMI-1
[    14.603] (II) modeset(0): Modeline "1920x1080"x60.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
[    14.603] (II) modeset(0): Modeline "1920x1080"x60.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz e)
[    14.603] (II) modeset(0): Modeline "1920x1080"x50.0  148.50  1920 2448 2492 2640  1080 1084 1089 1125 +hsync +vsync (56.2 kHz e)
[    14.603] (II) modeset(0): Modeline "1920x1080"x59.9  148.35  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.4 kHz e)
[    14.603] (II) modeset(0): Modeline "1680x1050"x59.9  119.00  1680 1728 1760 1840  1050 1053 1059 1080 +hsync -vsync (64.7 kHz e)
[    14.603] (II) modeset(0): Modeline "1280x1024"x75.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[    14.603] (II) modeset(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[    14.604] (II) modeset(0): Modeline "1440x900"x59.9   88.75  1440 1488 1520 1600  900 903 909 926 +hsync -vsync (55.5 kHz e)
[    14.604] (II) modeset(0): Modeline "1280x960"x60.0  108.00  1280 1376 1488 1800  960 961 964 1000 +hsync +vsync (60.0 kHz e)
[    14.604] (II) modeset(0): Modeline "1280x800"x59.9   71.00  1280 1328 1360 1440  800 803 809 823 +hsync -vsync (49.3 kHz e)
[    14.604] (II) modeset(0): Modeline "1152x864"x75.0  108.00  1152 1216 1344 1600  864 865 868 900 +hsync +vsync (67.5 kHz e)
[    14.604] (II) modeset(0): Modeline "1280x720"x60.0   74.25  1280 1390 1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[    14.604] (II) modeset(0): Modeline "1280x720"x60.0   74.25  1280 1390 1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[    14.604] (II) modeset(0): Modeline "1280x720"x50.0   74.25  1280 1720 1760 1980  720 725 730 750 +hsync +vsync (37.5 kHz e)
[    14.604] (II) modeset(0): Modeline "1280x720"x50.0   74.25  1280 1720 1760 1980  720 725 730 750 +hsync +vsync (37.5 kHz e)
[    14.604] (II) modeset(0): Modeline "1280x720"x59.9   74.18  1280 1390 1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[    14.604] (II) modeset(0): Modeline "1440x576"x50.0   54.00  1440 1464 1592 1728  576 581 586 625 -hsync -vsync (31.2 kHz e)
[    14.604] (II) modeset(0): Modeline "1440x576"x50.0   54.00  1440 1464 1592 1728  576 581 586 625 -hsync -vsync (31.2 kHz e)
[    14.604] (II) modeset(0): Modeline "1024x768"x75.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
[    14.604] (II) modeset(0): Modeline "1024x768"x70.1   75.00  1024 1048 1184 1328  768 771 777 806 -hsync -vsync (56.5 kHz e)
[    14.604] (II) modeset(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
[    14.604] (II) modeset(0): Modeline "1440x480"x60.0   54.05  1440 1472 1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    14.604] (II) modeset(0): Modeline "1440x480"x60.0   54.05  1440 1472 1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    14.604] (II) modeset(0): Modeline "1440x480"x59.9   54.00  1440 1472 1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    14.604] (II) modeset(0): Modeline "1440x480"x59.9   54.00  1440 1472 1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    14.604] (II) modeset(0): Modeline "832x624"x74.6   57.28  832 864 928 1152  624 625 628 667 -hsync -vsync (49.7 kHz e)
[    14.604] (II) modeset(0): Modeline "800x600"x72.2   50.00  800 856 976 1040  600 637 643 666 +hsync +vsync (48.1 kHz e)
[    14.604] (II) modeset(0): Modeline "800x600"x75.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
[    14.604] (II) modeset(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
[    14.604] (II) modeset(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz e)
[    14.604] (II) modeset(0): Modeline "720x576"x50.0   27.00  720 732 796 864  576 581 586 625 -hsync -vsync (31.2 kHz e)
[    14.604] (II) modeset(0): Modeline "720x576"x50.0   27.00  720 732 796 864  576 581 586 625 -hsync -vsync (31.2 kHz e)
[    14.604] (II) modeset(0): Modeline "720x576"x50.0   27.00  720 732 796 864  576 581 586 625 -hsync -vsync (31.2 kHz e)
[    14.604] (II) modeset(0): Modeline "720x480"x60.0   27.03  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    14.604] (II) modeset(0): Modeline "720x480"x60.0   27.03  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    14.604] (II) modeset(0): Modeline "720x480"x59.9   27.00  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    14.604] (II) modeset(0): Modeline "720x480"x59.9   27.00  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    14.604] (II) modeset(0): Modeline "720x480"x59.9   27.00  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    14.604] (II) modeset(0): Modeline "640x480"x75.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
[    14.604] (II) modeset(0): Modeline "640x480"x66.7   30.24  640 704 768 864  480 483 486 525 -hsync -vsync (35.0 kHz e)
[    14.605] (II) modeset(0): Modeline "640x480"x60.0   25.20  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[    14.605] (II) modeset(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[    14.605] (II) modeset(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[    14.605] (II) modeset(0): Modeline "720x400"x70.1   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
[    14.605] (II) modeset(0): Output HDMI-1 connected
[    14.605] (II) modeset(0): Using exact sizes for initial modes
[    14.605] (II) modeset(0): Output HDMI-1 using initial mode 1920x1080 +0+0
[    14.605] (==) modeset(0): Using gamma correction (1.0, 1.0, 1.0)
[    14.605] (==) modeset(0): DPI set to (96, 96)
[    14.605] (II) Loading sub module "fb"
[    14.605] (II) LoadModule: "fb"
[    14.606] (II) Loading /usr/lib/xorg/modules/libfb.so
[    14.607] (II) Module fb: vendor="X.Org Foundation"
[    14.607]    compiled for 1.20.6, module version = 1.0.0
[    14.607]    ABI class: X.Org ANSI C Emulation, version 0.4
[    14.637] (EE) 
[    14.637] (EE) Backtrace:
[    14.638] (EE) 0: /usr/lib/Xorg (xorg_backtrace+0x5c) [0x556c5e8064]
[    14.638] (EE) 1: /usr/lib/Xorg (0x556c4ac000+0x13f528) [0x556c5eb528]
[    14.638] (EE) 2: linux-vdso.so.1 (__kernel_rt_sigreturn+0x0) [0x7f8e5c6688]
[    14.638] (EE) 3: /usr/lib/dri/vc4_dri.so (0x7f8c143000+0x6acbc8) [0x7f8c7efbc8]
[    14.638] (EE) 
[    14.638] (EE) Illegal instruction at address 0x7f8c7efbc8
[    14.638] (EE) 
Fatal server error:
[    14.638] (EE) Caught signal 4 (Illegal instruction). Server aborting
[    14.638] (EE) 
[    14.638] (EE) 
Please consult the The X.Org Foundation support 
         at http://wiki.x.org
 for help. 
[    14.638] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[    14.638] (EE) 
[    14.663] (EE) Server terminated with error (1). Closing log file.
[foo@pi4 log]$ 

Hmm, why is it trying to load this?

At any rate, your xorg display server is hosed.
What is your gpu and what drivers are you using?

This is a raspberry pi 4, so it is the built-in GPU of the BCM2711 ARM SOC. As to the driver, I didn't do anything special - it is just whatever driver is supplied for the RPi 4. The crash I posted says it tried to load vc4_dri.so.

That's a dri driver, it also tried card0 and card1, the issue is the xorg server, not the dri driver.
Besides, it also tried loading modesetting, glx, and glammor. I would go back through the pacman (alpm) logs and see if anything was removed that caused the issue.
May I also ask if the kernel and/or the gpu module (driver) was updated?

NOTE: Since this is an arm based system I'm probably of little help.

I appreciate the help.

I'm now trying to isolate the problem by starting from a clean installation and then upgrading one package at a time, to see which one breaks the system. For the XFCE image there are 129 packages that are upgraded, so it will take me a little while to see which package is at fault.

Here is a copy of the x.org log from a clean installation with no upgrades. It is able to load the frame buffer without any problems.

saf$ cat Xorg.0.log.good
[     7.675] 
X.Org X Server 1.20.6
X Protocol Version 11, Revision 0
[     7.675] Build Operating System: Linux Arch Linux
[     7.675] Current Operating System: Linux pi4 4.19.86-1-MANJARO-ARM #1 SMP PREEMPT Mon Dec 9 20:16:43 UTC 2019 aarch64
[     7.676] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 cma=64M cma=256M video=HDMI-A-1:1920x1080M@60,margin_left=0,margin_right=0,margin_top=0,margin_bottom=0 smsc95xx.macaddr=DC:A6:32:5B:32:8F vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  root=/dev/mmcblk0p2 rw rootwait console=ttyS0,115200 console=tty1 selinux=0 plymouth.enable=0 smsc95xx.turbo_mode=N dwc_otg.lpm_enable=0 kgdboc=ttyS0,115200 elevator=noop snd-bcm2835.enable_compat_alsa=0
[     7.676] Build Date: 23 November 2019  09:22:16PM
[     7.676]  
[     7.676] Current version of pixman: 0.38.4
[     7.676]    Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
[     7.676] Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[     7.676] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Jan 10 09:13:46 2020
[     7.688] (==) Using config directory: "/etc/X11/xorg.conf.d"
[     7.688] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[     7.691] (==) No Layout section.  Using the first Screen section.
[     7.691] (==) No screen section available. Using defaults.
[     7.691] (**) |-->Screen "Default Screen Section" (0)
[     7.691] (**) |   |-->Monitor "<default monitor>"
[     7.691] (==) No monitor specified for screen "Default Screen Section".
        Using a default monitor configuration.
[     7.691] (==) Automatically adding devices
[     7.691] (==) Automatically enabling devices
[     7.691] (==) Automatically adding GPU devices
[     7.691] (==) Automatically binding GPU devices
[     7.691] (==) Max clients allowed: 256, resource mask: 0x1fffff
[     7.696] (WW) The directory "/usr/share/fonts/misc" does not exist.
[     7.696]    Entry deleted from font path.
[     7.697] (WW) The directory "/usr/share/fonts/OTF" does not exist.
[     7.697]    Entry deleted from font path.
[     7.697] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[     7.697]    Entry deleted from font path.
[     7.697] (WW) The directory "/usr/share/fonts/100dpi" does not exist.
[     7.697]    Entry deleted from font path.
[     7.697] (WW) The directory "/usr/share/fonts/75dpi" does not exist.
[     7.697]    Entry deleted from font path.
[     7.697] (==) FontPath set to:
        /usr/share/fonts/TTF
[     7.697] (==) ModulePath set to "/usr/lib/xorg/modules"
[     7.697] (II) The server relies on udev to provide the list of input devices.
        If no devices become available, reconfigure udev or disable AutoAddDevices.
[     7.697] (II) Module ABI versions:
[     7.697]    X.Org ANSI C Emulation: 0.4
[     7.697]    X.Org Video Driver: 24.0
[     7.697]    X.Org XInput driver : 24.1
[     7.697]    X.Org Server Extension : 10.0
[     7.698] (++) using VT number 7

[     7.698] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[     7.700] (II) xfree86: Adding drm device (/dev/dri/card1)
[     7.701] (II) xfree86: Adding drm device (/dev/dri/card0)
[     7.702] (II) no primary bus or device found
[     7.702]    falling back to /sys/devices/platform/soc/soc:gpu/drm/card1
[     7.702] (II) LoadModule: "glx"
[     7.705] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[     7.781] (II) Module glx: vendor="X.Org Foundation"
[     7.781]    compiled for 1.20.6, module version = 1.0.0
[     7.781]    ABI class: X.Org Server Extension, version 10.0
[     7.781] (==) Matched modesetting as autoconfigured driver 0
[     7.781] (==) Matched fbdev as autoconfigured driver 1
[     7.781] (==) Assigned the driver to the xf86ConfigLayout
[     7.781] (II) LoadModule: "modesetting"
[     7.787] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[     7.807] (II) Module modesetting: vendor="X.Org Foundation"
[     7.808]    compiled for 1.20.6, module version = 1.20.6
[     7.808]    Module class: X.Org Video Driver
[     7.808]    ABI class: X.Org Video Driver, version 24.0
[     7.808] (II) LoadModule: "fbdev"
[     7.809] (WW) Warning, couldn't open module fbdev
[     7.809] (EE) Failed to load module "fbdev" (module does not exist, 0)
[     7.809] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[     7.834] (II) modeset(0): using drv /dev/dri/card1
[     7.835] (II) modeset(0): Creating default Display subsection in Screen section
        "Default Screen Section" for depth/fbbpp 24/32
[     7.835] (==) modeset(0): Depth 24, (==) framebuffer bpp 32
[     7.835] (==) modeset(0): RGB weight 888
[     7.835] (==) modeset(0): Default visual is TrueColor
[     7.835] (II) Loading sub module "glamoregl"
[     7.835] (II) LoadModule: "glamoregl"
[     7.835] (II) Loading /usr/lib/xorg/modules/libglamoregl.so
[     7.893] (II) Module glamoregl: vendor="X.Org Foundation"
[     7.893]    compiled for 1.20.6, module version = 1.0.1
[     7.893]    ABI class: X.Org ANSI C Emulation, version 0.4
[     9.503] (II) modeset(0): glamor X acceleration enabled on V3D 4.2
[     9.503] (II) modeset(0): glamor initialized
[     9.536] (II) modeset(0): Output HDMI-1 has no monitor section
[     9.568] (II) modeset(0): EDID for output HDMI-1
[     9.569] (II) modeset(0): Manufacturer: ACI  Model: 22d3  Serial#: 29292
[     9.569] (II) modeset(0): Year: 2012  Week: 19
[     9.569] (II) modeset(0): EDID Version: 1.3
[     9.569] (II) modeset(0): Digital Display Input
[     9.569] (II) modeset(0): Max Image Size [cm]: horiz.: 48  vert.: 27
[     9.569] (II) modeset(0): Gamma: 2.20
[     9.569] (II) modeset(0): DPMS capabilities: Off
[     9.569] (II) modeset(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 
[     9.569] (II) modeset(0): First detailed timing is preferred mode
[     9.569] (II) modeset(0): redX: 0.638 redY: 0.331   greenX: 0.308 greenY: 0.625
[     9.569] (II) modeset(0): blueX: 0.154 blueY: 0.072   whiteX: 0.313 whiteY: 0.329
[     9.569] (II) modeset(0): Supported established timings:
[     9.569] (II) modeset(0): 720x400@70Hz
[     9.569] (II) modeset(0): 640x480@60Hz
[     9.569] (II) modeset(0): 640x480@67Hz
[     9.569] (II) modeset(0): 640x480@75Hz
[     9.569] (II) modeset(0): 800x600@56Hz
[     9.569] (II) modeset(0): 800x600@60Hz
[     9.569] (II) modeset(0): 800x600@72Hz
[     9.569] (II) modeset(0): 800x600@75Hz
[     9.569] (II) modeset(0): 832x624@75Hz
[     9.569] (II) modeset(0): 1024x768@60Hz
[     9.570] (II) modeset(0): 1024x768@70Hz
[     9.570] (II) modeset(0): 1024x768@75Hz
[     9.570] (II) modeset(0): 1280x1024@75Hz
[     9.570] (II) modeset(0): Manufacturer's mask: 0
[     9.570] (II) modeset(0): Supported standard timings:
[     9.570] (II) modeset(0): #0: hsize: 1920  vsize 1080  refresh: 60  vid: 49361
[     9.570] (II) modeset(0): #1: hsize: 1280  vsize 960  refresh: 60  vid: 16513
[     9.570] (II) modeset(0): #2: hsize: 1280  vsize 1024  refresh: 60  vid: 32897
[     9.570] (II) modeset(0): #3: hsize: 1440  vsize 900  refresh: 60  vid: 149
[     9.570] (II) modeset(0): #4: hsize: 1680  vsize 1050  refresh: 60  vid: 179
[     9.570] (II) modeset(0): #5: hsize: 1152  vsize 864  refresh: 75  vid: 20337
[     9.570] (II) modeset(0): #6: hsize: 1280  vsize 720  refresh: 60  vid: 49281
[     9.570] (II) modeset(0): #7: hsize: 1280  vsize 800  refresh: 60  vid: 129
[     9.570] (II) modeset(0): Supported detailed timing:
[     9.570] (II) modeset(0): clock: 148.5 MHz   Image Size:  475 x 267 mm
[     9.570] (II) modeset(0): h_active: 1920  h_sync: 2008  h_sync_end 2052 h_blank_end 2200 h_border: 0
[     9.570] (II) modeset(0): v_active: 1080  v_sync: 1084  v_sync_end 1089 v_blanking: 1125 v_border: 0
[     9.570] (II) modeset(0): Serial No: C5LMTF029292
[     9.570] (II) modeset(0): Ranges: V min: 50 V max: 75 Hz, H min: 24 H max: 83 kHz, PixClock max 175 MHz
[     9.570] (II) modeset(0): Monitor name: ASUS VS229
[     9.570] (II) modeset(0): Supported detailed timing:
[     9.570] (II) modeset(0): clock: 27.0 MHz   Image Size:  475 x 267 mm
[     9.571] (II) modeset(0): h_active: 720  h_sync: 736  h_sync_end 798 h_blank_end 858 h_border: 0
[     9.571] (II) modeset(0): v_active: 480  v_sync: 489  v_sync_end 495 v_blanking: 525 v_border: 0
[     9.571] (II) modeset(0): Supported detailed timing:
[     9.571] (II) modeset(0): clock: 74.2 MHz   Image Size:  475 x 267 mm
[     9.571] (II) modeset(0): h_active: 1280  h_sync: 1390  h_sync_end 1430 h_blank_end 1650 h_border: 0
[     9.571] (II) modeset(0): v_active: 720  v_sync: 725  v_sync_end 730 v_blanking: 750 v_border: 0
[     9.571] (II) modeset(0): Supported detailed timing:
[     9.571] (II) modeset(0): clock: 74.2 MHz   Image Size:  475 x 267 mm
[     9.571] (II) modeset(0): h_active: 1280  h_sync: 1720  h_sync_end 1760 h_blank_end 1980 h_border: 0
[     9.571] (II) modeset(0): v_active: 720  v_sync: 725  v_sync_end 730 v_blanking: 750 v_border: 0
[     9.571] (II) modeset(0): Supported detailed timing:
[     9.571] (II) modeset(0): clock: 27.0 MHz   Image Size:  475 x 267 mm
[     9.571] (II) modeset(0): h_active: 720  h_sync: 732  h_sync_end 796 h_blank_end 864 h_border: 0
[     9.571] (II) modeset(0): v_active: 576  v_sync: 581  v_sync_end 586 v_blanking: 625 v_border: 0
[     9.571] (II) modeset(0): Number of EDID sections to follow: 1
[     9.571] (II) modeset(0): EDID (in hex):
[     9.571] (II) modeset(0):   00ffffffffffff000469d3226c720000
[     9.571] (II) modeset(0):   1316010380301b782a7ca5a3544ea027
[     9.571] (II) modeset(0):   125054b7ef00d1c0814081809500b300
[     9.571] (II) modeset(0):   714f81c08100023a801871382d40582c
[     9.572] (II) modeset(0):   4500db0b1100001e000000ff0043354c
[     9.572] (II) modeset(0):   4d54463032393239320a000000fd0032
[     9.572] (II) modeset(0):   4b185311000a202020202020000000fc
[     9.572] (II) modeset(0):   00415355532056533232390a20200129
[     9.572] (II) modeset(0):   020322714f0102031112130414050e0f
[     9.572] (II) modeset(0):   1d1e1f10230917078301000065030c00
[     9.572] (II) modeset(0):   10008c0ad08a20e02d10103e9600db0b
[     9.572] (II) modeset(0):   11000018011d007251d01e206e285500
[     9.572] (II) modeset(0):   db0b1100001e011d00bc52d01e20b828
[     9.572] (II) modeset(0):   5540db0b1100001e8c0ad09020403120
[     9.572] (II) modeset(0):   0c405500db0b11000018000000000000
[     9.572] (II) modeset(0):   000000000000000000000000000000bd
[     9.573] (II) modeset(0): Printing probed modes for output HDMI-1
[     9.573] (II) modeset(0): Modeline "1920x1080"x60.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
[     9.573] (II) modeset(0): Modeline "1920x1080"x60.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz e)
[     9.573] (II) modeset(0): Modeline "1920x1080"x50.0  148.50  1920 2448 2492 2640  1080 1084 1089 1125 +hsync +vsync (56.2 kHz e)
[     9.573] (II) modeset(0): Modeline "1920x1080"x59.9  148.35  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.4 kHz e)
[     9.573] (II) modeset(0): Modeline "1680x1050"x59.9  119.00  1680 1728 1760 1840  1050 1053 1059 1080 +hsync -vsync (64.7 kHz e)
[     9.573] (II) modeset(0): Modeline "1280x1024"x75.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[     9.573] (II) modeset(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[     9.573] (II) modeset(0): Modeline "1440x900"x59.9   88.75  1440 1488 1520 1600  900 903 909 926 +hsync -vsync (55.5 kHz e)
[     9.573] (II) modeset(0): Modeline "1280x960"x60.0  108.00  1280 1376 1488 1800  960 961 964 1000 +hsync +vsync (60.0 kHz e)
[     9.573] (II) modeset(0): Modeline "1280x800"x59.9   71.00  1280 1328 1360 1440  800 803 809 823 +hsync -vsync (49.3 kHz e)
[     9.573] (II) modeset(0): Modeline "1152x864"x75.0  108.00  1152 1216 1344 1600  864 865 868 900 +hsync +vsync (67.5 kHz e)
[     9.573] (II) modeset(0): Modeline "1280x720"x60.0   74.25  1280 1390 1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[     9.573] (II) modeset(0): Modeline "1280x720"x60.0   74.25  1280 1390 1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[     9.573] (II) modeset(0): Modeline "1280x720"x50.0   74.25  1280 1720 1760 1980  720 725 730 750 +hsync +vsync (37.5 kHz e)
[     9.573] (II) modeset(0): Modeline "1280x720"x50.0   74.25  1280 1720 1760 1980  720 725 730 750 +hsync +vsync (37.5 kHz e)
[     9.573] (II) modeset(0): Modeline "1280x720"x59.9   74.18  1280 1390 1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[     9.573] (II) modeset(0): Modeline "1440x576"x50.0   54.00  1440 1464 1592 1728  576 581 586 625 -hsync -vsync (31.2 kHz e)
[     9.573] (II) modeset(0): Modeline "1440x576"x50.0   54.00  1440 1464 1592 1728  576 581 586 625 -hsync -vsync (31.2 kHz e)
[     9.574] (II) modeset(0): Modeline "1024x768"x75.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
[     9.574] (II) modeset(0): Modeline "1024x768"x70.1   75.00  1024 1048 1184 1328  768 771 777 806 -hsync -vsync (56.5 kHz e)
[     9.574] (II) modeset(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
[     9.574] (II) modeset(0): Modeline "1440x480"x60.0   54.05  1440 1472 1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     9.574] (II) modeset(0): Modeline "1440x480"x60.0   54.05  1440 1472 1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     9.574] (II) modeset(0): Modeline "1440x480"x59.9   54.00  1440 1472 1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     9.574] (II) modeset(0): Modeline "1440x480"x59.9   54.00  1440 1472 1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     9.574] (II) modeset(0): Modeline "832x624"x74.6   57.28  832 864 928 1152  624 625 628 667 -hsync -vsync (49.7 kHz e)
[     9.574] (II) modeset(0): Modeline "800x600"x72.2   50.00  800 856 976 1040  600 637 643 666 +hsync +vsync (48.1 kHz e)
[     9.574] (II) modeset(0): Modeline "800x600"x75.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
[     9.574] (II) modeset(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
[     9.574] (II) modeset(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz e)
[     9.574] (II) modeset(0): Modeline "720x576"x50.0   27.00  720 732 796 864  576 581 586 625 -hsync -vsync (31.2 kHz e)
[     9.574] (II) modeset(0): Modeline "720x576"x50.0   27.00  720 732 796 864  576 581 586 625 -hsync -vsync (31.2 kHz e)
[     9.574] (II) modeset(0): Modeline "720x576"x50.0   27.00  720 732 796 864  576 581 586 625 -hsync -vsync (31.2 kHz e)
[     9.574] (II) modeset(0): Modeline "720x480"x60.0   27.03  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     9.574] (II) modeset(0): Modeline "720x480"x60.0   27.03  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     9.574] (II) modeset(0): Modeline "720x480"x59.9   27.00  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     9.574] (II) modeset(0): Modeline "720x480"x59.9   27.00  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     9.574] (II) modeset(0): Modeline "720x480"x59.9   27.00  720 736 798 858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[     9.575] (II) modeset(0): Modeline "640x480"x75.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
[     9.575] (II) modeset(0): Modeline "640x480"x66.7   30.24  640 704 768 864  480 483 486 525 -hsync -vsync (35.0 kHz e)
[     9.575] (II) modeset(0): Modeline "640x480"x60.0   25.20  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[     9.575] (II) modeset(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[     9.575] (II) modeset(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[     9.575] (II) modeset(0): Modeline "720x400"x70.1   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
[     9.575] (II) modeset(0): Output HDMI-1 connected
[     9.575] (II) modeset(0): Using exact sizes for initial modes
[     9.575] (II) modeset(0): Output HDMI-1 using initial mode 1920x1080 +0+0
[     9.575] (==) modeset(0): Using gamma correction (1.0, 1.0, 1.0)
[     9.575] (==) modeset(0): DPI set to (96, 96)
[     9.575] (II) Loading sub module "fb"
[     9.575] (II) LoadModule: "fb"
[     9.576] (II) Loading /usr/lib/xorg/modules/libfb.so
[     9.602] (II) Module fb: vendor="X.Org Foundation"
[     9.602]    compiled for 1.20.6, module version = 1.0.0
[     9.602]    ABI class: X.Org ANSI C Emulation, version 0.4
[     9.784] (==) modeset(0): Backing store enabled
[     9.784] (==) modeset(0): Silken mouse disabled
[     9.885] (II) modeset(0): Initializing kms color map for depth 24, 8 bpc.
[     9.885] (==) modeset(0): DPMS enabled
[     9.887] (II) modeset(0): [DRI2] Setup complete
[     9.887] (II) modeset(0): [DRI2]   DRI driver: vc4
[     9.887] (II) modeset(0): [DRI2]   VDPAU driver: vc4
[     9.888] (II) Initializing extension Generic Event Extension
[     9.889] (II) Initializing extension SHAPE
[     9.889] (II) Initializing extension MIT-SHM
[     9.890] (II) Initializing extension XInputExtension
[     9.894] (II) Initializing extension XTEST
[     9.895] (II) Initializing extension BIG-REQUESTS
[     9.896] (II) Initializing extension SYNC
[     9.897] (II) Initializing extension XKEYBOARD
[     9.898] (II) Initializing extension XC-MISC
[     9.898] (II) Initializing extension SECURITY
[     9.899] (II) Initializing extension XFIXES
[     9.900] (II) Initializing extension RENDER
[     9.901] (II) Initializing extension RANDR
[     9.902] (II) Initializing extension COMPOSITE
[     9.902] (II) Initializing extension DAMAGE
[     9.903] (II) Initializing extension MIT-SCREEN-SAVER
[     9.903] (II) Initializing extension DOUBLE-BUFFER
[     9.903] (II) Initializing extension RECORD
[     9.904] (II) Initializing extension DPMS
[     9.904] (II) Initializing extension Present
[     9.904] (II) Initializing extension DRI3
[     9.904] (II) Initializing extension X-Resource
[     9.905] (II) Initializing extension XVideo
[     9.905] (II) Initializing extension XVideo-MotionCompensation
[     9.905] (II) Initializing extension GLX
[     9.918] (II) AIGLX: Loaded and initialized vc4
[     9.918] (II) GLX: Initialized DRI2 GL provider for screen 0
[     9.918] (II) Initializing extension XFree86-VidModeExtension
[     9.919] (II) Initializing extension XFree86-DGA
[     9.919] (II) Initializing extension XFree86-DRI
[     9.919] (II) Initializing extension DRI2
[     9.925] (II) modeset(0): Damage tracking initialized
[     9.925] (II) modeset(0): Setting screen physical size to 508 x 285
[    10.110] (II) config/udev: Adding input device Logitech USB Optical Mouse (/dev/input/event0)
[    10.110] (**) Logitech USB Optical Mouse: Applying InputClass "libinput pointer catchall"
[    10.110] (II) LoadModule: "libinput"
[    10.110] (II) Loading /usr/lib/xorg/modules/input/libinput_drv.so
[    10.137] (II) Module libinput: vendor="X.Org Foundation"
[    10.137]    compiled for 1.20.5, module version = 0.29.0
[    10.137]    Module class: X.Org XInput Driver
[    10.137]    ABI class: X.Org XInput driver, version 24.1
[    10.137] (II) Using input driver 'libinput' for 'Logitech USB Optical Mouse'
[    10.138] (**) Logitech USB Optical Mouse: always reports core events
[    10.138] (**) Option "Device" "/dev/input/event0"
[    10.138] (**) Option "_source" "server/udev"
[    10.186] (II) event0  - Logitech USB Optical Mouse: is tagged by udev as: Mouse
[    10.187] (II) event0  - Logitech USB Optical Mouse: device is a pointer
[    10.187] (II) event0  - Logitech USB Optical Mouse: device removed
[    10.228] (**) Option "config_info" "udev:/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.3/1-1.3:1.0/0003:046D:C077.0001/input/input0/event0"
[    10.228] (II) XINPUT: Adding extended input device "Logitech USB Optical Mouse" (type: MOUSE, id 6)
[    10.228] (**) Option "AccelerationScheme" "none"
[    10.229] (**) Logitech USB Optical Mouse: (accel) selected scheme none/0
[    10.229] (**) Logitech USB Optical Mouse: (accel) acceleration factor: 2.000
[    10.229] (**) Logitech USB Optical Mouse: (accel) acceleration threshold: 4
[    10.239] (II) event0  - Logitech USB Optical Mouse: is tagged by udev as: Mouse
[    10.239] (II) event0  - Logitech USB Optical Mouse: device is a pointer
[    10.241] (II) config/udev: Adding input device Logitech USB Optical Mouse (/dev/input/mouse0)
[    10.241] (II) No input driver specified, ignoring this device.
[    10.241] (II) This device may have been added with another device file.
[    10.244] (II) config/udev: Adding input device Logitech USB Keyboard (/dev/input/event1)
[    10.244] (**) Logitech USB Keyboard: Applying InputClass "libinput keyboard catchall"
[    10.244] (**) Logitech USB Keyboard: Applying InputClass "system-keyboard"
[    10.244] (II) Using input driver 'libinput' for 'Logitech USB Keyboard'
[    10.244] (**) Logitech USB Keyboard: always reports core events
[    10.244] (**) Option "Device" "/dev/input/event1"
[    10.244] (**) Option "_source" "server/udev"
[    10.248] (II) event1  - Logitech USB Keyboard: is tagged by udev as: Keyboard
[    10.249] (II) event1  - Logitech USB Keyboard: device is a keyboard
[    10.249] (II) event1  - Logitech USB Keyboard: device removed
[    10.264] (**) Option "config_info" "udev:/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.4/1-1.4:1.0/0003:046D:C31C.0002/input/input1/event1"
[    10.264] (II) XINPUT: Adding extended input device "Logitech USB Keyboard" (type: KEYBOARD, id 7)
[    10.264] (**) Option "xkb_model" "pc105+inet"
[    10.264] (**) Option "xkb_layout" "us"
[    10.264] (**) Option "xkb_options" "terminate:ctrl_alt_bksp"
[    10.317] (II) event1  - Logitech USB Keyboard: is tagged by udev as: Keyboard
[    10.317] (II) event1  - Logitech USB Keyboard: device is a keyboard
[    10.320] (II) config/udev: Adding input device Logitech USB Keyboard (/dev/input/event2)
[    10.320] (**) Logitech USB Keyboard: Applying InputClass "libinput keyboard catchall"
[    10.320] (**) Logitech USB Keyboard: Applying InputClass "system-keyboard"
[    10.320] (II) Using input driver 'libinput' for 'Logitech USB Keyboard'
[    10.320] (**) Logitech USB Keyboard: always reports core events
[    10.320] (**) Option "Device" "/dev/input/event2"
[    10.320] (**) Option "_source" "server/udev"
[    10.325] (II) event2  - Logitech USB Keyboard: is tagged by udev as: Keyboard
[    10.325] (II) event2  - Logitech USB Keyboard: device is a keyboard
[    10.325] (II) event2  - Logitech USB Keyboard: device removed
[    10.340] (II) libinput: Logitech USB Keyboard: needs a virtual subdevice
[    10.340] (**) Option "config_info" "udev:/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.4/1-1.4:1.1/0003:046D:C31C.0003/input/input2/event2"
[    10.340] (II) XINPUT: Adding extended input device "Logitech USB Keyboard" (type: MOUSE, id 8)
[    10.340] (**) Option "AccelerationScheme" "none"
[    10.341] (**) Logitech USB Keyboard: (accel) selected scheme none/0
[    10.341] (**) Logitech USB Keyboard: (accel) acceleration factor: 2.000
[    10.341] (**) Logitech USB Keyboard: (accel) acceleration threshold: 4
[    10.351] (II) event2  - Logitech USB Keyboard: is tagged by udev as: Keyboard
[    10.352] (II) event2  - Logitech USB Keyboard: device is a keyboard
[    10.365] (**) Logitech USB Keyboard: Applying InputClass "libinput keyboard catchall"
[    10.365] (**) Logitech USB Keyboard: Applying InputClass "system-keyboard"
[    10.365] (II) Using input driver 'libinput' for 'Logitech USB Keyboard'
[    10.365] (**) Logitech USB Keyboard: always reports core events
[    10.365] (**) Option "Device" "/dev/input/event2"
[    10.365] (**) Option "_source" "_driver/libinput"
[    10.365] (II) libinput: Logitech USB Keyboard: is a virtual subdevice
[    10.365] (**) Option "config_info" "udev:/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.4/1-1.4:1.1/0003:046D:C31C.0003/input/input2/event2"
[    10.365] (II) XINPUT: Adding extended input device "Logitech USB Keyboard" (type: KEYBOARD, id 9)
[    10.365] (**) Option "xkb_model" "pc105+inet"
[    10.365] (**) Option "xkb_layout" "us"
[    10.366] (**) Option "xkb_options" "terminate:ctrl_alt_bksp"
[    18.479] (II) modeset(0): Disabling kernel dirty updates, not required.

I believe I've isolated the problem to the "mesa" package. Here is what I did:

  1. Clean install of Manjaro-ARM-xfce-rpi4-19.12.1.img.xz
  2. System boots properly - graphic login works perfectly
  3. Just upgrade mesa via: pacman -Sy mesa
  4. System no longer boots to a graphic login screen.
  5. Xorg.0.log shows a coredump as I reported earlier.

How do I report this apparent mesa bug? Is there a bugzilla for Manjaro?

That would be a partial upgrade which is likely to cause problems .. it doesnt really tell us for sure if mesa was at fault.

I am having the same problems after running a full upgrade using pacman -Syu last night. Lightdm does not start up and starting X server manually fails with an illegal instruction error in the vc4_dri.so file.

After downgrading mesa using pacman -U /var/cache/pacman/pkg/mesa-19.3.1-1-aarch64.pkg.tar.xz I was able to normally start my desktop.

Now that seems more defintive :wink:

I understand about partial upgrades not being ideal for a rolling release.

In fact, I tried doing another clean install followed by a "mostly full upgrade", but with --ignore=mesa, and found that NetworkManager got an illegal instruction crash.

So it probably is too soon to blame mesa, but it definitely is involved somehow.

Can you try installing mesa-git instead.

Seems 19.3.2 has some issues.

mesa-git works. I did:

pacman -Suy mesa-git

and the system is fully updated and functional again.

Thanks for the help!

I also had this problem with the last manjaro-arm update to my rpi4. Installing mesa-git via ssh brought functionality back to the window manager. Should we avoid full upgrades with pacman for a while?

This issue should have been fixed with the new update to mesa 19.3.2-2.

1 Like

Confirmed - I switched to mesa 19.3.2-2 and my desktop worked as expected.

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