XFCE won’t boot after update, screen flashing on and off

Support
1

Hi

First off, I am a complete noob so I’m probably going to need some level of hand-holding to fix this.

I’m running a dual boot Windows 10/Manjaro XFCE MSI laptop with a NVidia GeForce 920M graphics card.

After updating my system today, I restarted as the system requested. Reached grub menu fine, selected my Manjaro system, then the screen started flashing on and off and did not load past the MSI logo.

At this point I pressed Ctrl-Alt-F2 (as per google search), the screen kept flashing on and off but showed a black screen with a single white cursor instead of the MSI logo. I couldn’t type anything or get a reaction from this.

Next, I booted into a live ISO USB (running very old version). I followed the post: Manjaro does not boot after update - emergency shell
I managed to mount my broken system and ran pacman -Syyu (it said there was nothing to be done). I also ran update-grub successfully.

When I turned on my laptop, the grub menu did not show at all. When I pressed F11 to load up the laptop’s own boot menu and select Manjaro, the screen again flashed on and off and showed the MSI logo.

Next I used these two commands as per the above linked thread:

  1. sudo mhwd -r pci $(mhwd -li | grep ‘video-’ | awk ‘{print $1}’)
  2. sudo mhwd -a pci free 0300

Now, the grub menu still does not show but when I boot in via F11 menu, I get the message [FAILED] failed to start Light Display Manager.

That is as far as I have got. I’m trying to keep calm about it but I am very much out of my depth with this. Any help is appreciated.

EDIT: System Info

12System:
  12Kernel 5.4.6-2-MANJARO x86_64 12bits 64 12compiler gcc 12v 9.2.0
    12parameters BOOT_IMAGE=/boot/vmlinuz-x86_64 lang=en_US keytable=us tz=UTC
    driver=free nouveau.modeset=1 i915.modeset=1 radeon.modeset=1
    misobasedir=manjaro misolabel=MJRO1815 quiet systemd.show_status=1
  12Desktop Xfce 12info xfce4-panel 12wm xfwm 12dm N/A 12Distro Manjaro Linux
    12base Arch Linux
12Machine:
  12Type Laptop 12System Micro-Star 12product CX62 2QD 12v REV:1.0 12serial <filter>
    12Chassis 12type 10 12serial N/A
  12Mobo Micro-Star 12model MS-16J3 12v REV:0.B 12serial <filter>
    12UEFI American Megatrends 12v E16J3IMS.110 12date 11/21/2015
12Battery:
  12ID-1 BAT1 12charge 28.7 Wh (91.1%) 12condition 31.5/42.4 Wh (74.4%) 12volts 12.2
    12min 10.8 12model MSI BIF0_9 12type Li-ion 12serial N/A 12status Charging
12Memory:
  12RAM 12total 7.7 GiB 12used 1.81 GiB (23.6%)
  12Array-1 12capacity 16 GiB 12slots 2 12EC None 12max-module-size 8 GiB 12note est.
  12Device-1 ChannelA-DIMM0 12size 8 GiB 12speed 1600 MT/s 12type DDR3
    12detail synchronous 12bus-width 64 bits 12total 64 bits
    12manufacturer Hynix/Hyundai 12part-no HMT41GS6BFR8A-PB 12serial <filter>
  12Device-2 ChannelB-DIMM0 12size No Module Installed
12CPU:
  12Info 12model Intel Core i5-4210H 12socket LGA1150 12bits 64 12type MT MCP
    12arch Haswell 12family 6 12model-id 0x3C (60) 12stepping 3 12microcode 0x27
  12Topology 12cpus 1x 12cores 2 12tpc 2 12threads 4 12smt enabled 12cache 12L1 128 KiB
    12desc d-2x32 KiB; i-2x32 KiB 12L2 512 KiB 12desc 2x256 KiB 12L3 3 MiB 12desc 1x3 MiB
  12Speed (MHz) 12avg 1025 12high 1494 12min/max 800/3500 12base/boost 3400/2900
    12scaling 12driver intel_pstate 12governor powersave 12volts 1.0 V 12ext-clock 100 MHz
    12cores 121 798 122 822 123 987 124 1494 12bogomips 23154
  12Flags abm acpi aes aperfmperf apic arat arch_perfmon avx avx2 bmi1 bmi2
    bts clflush cmov constant_tsc cpuid cpuid_fault cx16 cx8 de ds_cpl dtes64
    dtherm dts epb ept ept_ad erms est f16c flexpriority flush_l1d fma fpu
    fsgsbase fxsr ht ibpb ibrs ida invpcid invpcid_single lahf_lm lm mca mce
    md_clear mmx monitor movbe msr mtrr nonstop_tsc nopl nx pae pat pbe pcid
    pclmulqdq pdcm pdpe1gb pebs pge pln pni popcnt pse pse36 pti pts rdrand
    rdtscp rep_good sdbg sep smep ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp
    syscall tm tm2 tpr_shadow tsc tsc_adjust tsc_deadline_timer vme vmx vnmi
    vpid x2apic xsave xsaveopt xtopology xtpr
  12Vulnerabilities
  12Type itlb_multihit 12status KVM: Split huge pages
  12Type l1tf
    12mitigation PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
  12Type mds 12mitigation Clear CPU buffers; SMT vulnerable
  12Type meltdown 12mitigation PTI
  12Type spec_store_bypass
    12mitigation Speculative Store Bypass disabled via prctl and seccomp
  12Type spectre_v1
    12mitigation usercopy/swapgs barriers and __user pointer sanitization
  12Type spectre_v2 12mitigation Full generic retpoline, IBPB: conditional,
    IBRS_FW, STIBP: conditional, RSB filling
  12Type tsx_async_abort 12status Not affected
12Graphics:
  12Device-1 Intel 4th Gen Core Processor Integrated Graphics
    12vendor Micro-Star MSI 12driver i915 12v kernel 12bus-ID 00:02.0 12chip-ID 8086:0416
    12class-ID 0300
  12Device-2 NVIDIA GM108M [GeForce 940M] 12vendor Micro-Star MSI 12driver nouveau
    12v kernel 12bus-ID 01:00.0 12chip-ID 10de:1347 12class-ID 0302
  12Device-3 Chicony USB 2.0 Webcam Device 12type USB 12driver uvcvideo
    12bus-ID 1-1.4:5 12chip-ID 04f2:b521 12class-ID 0e02 12serial <filter>
  12Display 12server X.org 1.21.1.3 12compositor xfwm4 12driver 12loaded modesetting
    12alternate nvidia
  12Message Unable to show advanced data. Required tool glxinfo missing.
12Audio:
  12Device-1 Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio
    12vendor Micro-Star MSI 12driver snd_hda_intel 12v kernel 12bus-ID 00:03.0
    12chip-ID 8086:0c0c 12class-ID 0403
  12Device-2 Intel 8 Series/C220 Series High Definition Audio
    12vendor Micro-Star MSI 12driver snd_hda_intel 12v kernel 12bus-ID 00:1b.0
    12chip-ID 8086:8c20 12class-ID 0403
  12Sound Server-1 ALSA 12v k5.4.6-2-MANJARO 12running yes
  12Sound Server-2 JACK 12v 1.9.20 12running no
  12Sound Server-3 PulseAudio 12v 15.0 12running yes
  12Sound Server-4 PipeWire 12v 0.3.43 12running no
12Network:
  12Device-1 Intel Wireless 3160 12driver iwlwifi 12v kernel 12bus-ID 03:00.0
    12chip-ID 8086:08b3 12class-ID 0280
  12IF wlp3s0 12state up 12mac <filter>
  12IP v4 <filter> 12type dynamic noprefixroute 12scope global 12broadcast <filter>
  12IP v6 <filter> 12type noprefixroute 12scope link
  12Device-2 Qualcomm Atheros Killer E220x Gigabit Ethernet
    12vendor Micro-Star MSI 12driver alx 12v kernel 12port 3000 12bus-ID 04:00.0
    12chip-ID 1969:e091 12class-ID 0200
  12IF enp4s0 12state down 12mac <filter>
  12WAN IP <filter>
12Bluetooth:
  12Device-1 Intel Bluetooth wireless interface 12type USB 12driver btusb 12v 0.8
    12bus-ID 1-1.3:4 12chip-ID 8087:07dc 12class-ID e001
  12Report bt-adapter 12ID hci0 12rfk-id 1 12state down 12bt-service N/A 12rfk-block
    12hardware no 12software yes 12address N/A
12Logical:
  12Message No logical block device data found.
12RAID:
  12Message No RAID data found.
12Drives:
  12Local Storage 12total 945.83 GiB 12used 48.65 GiB (5.1%)
  12SMART Message Required tool smartctl not installed. Check --recommends
  12ID-1 /dev/sda 12maj-min 8:0 12vendor Western Digital 12model WD10JPVX-22JC3T0
    12size 931.51 GiB 12block-size 12physical 4096 B 12logical 512 B 12speed 6.0 Gb/s
    12type N/A 12serial <filter> 12rev 1A01
  12ID-2 /dev/sdb 12maj-min 8:16 12type USB 12vendor SanDisk 12model Ultra USB 3.0
    12size 14.32 GiB 12block-size 12physical 512 B 12logical 512 B 12type N/A
    12serial <filter> 12rev 1.00
  12Optical-1 /dev/sr0 12vendor ■■■■■■■■ 12model DVD-RAM UJ892AS 12rev 1.00
    12dev-links cdrom
  12Features 12speed 24 12multisession yes 12audio yes 12dvd yes
    12rw cd-r,cd-rw,dvd-r,dvd-ram 12state running
12Partition:
  12ID-1 / 12raw-size 165.87 GiB 12size 162.27 GiB (97.83%) 12used 48.65 GiB (30.0%)
    12fs ext4 12block-size 4096 B 12dev /dev/sda9 12maj-min 8:9 12label N/A
    12uuid b9ce512a-9ef6-4a07-bc33-69d6e1bbb035
  12ID-2 /boot/efi 12raw-size 150 MiB 12size 147.7 MiB (98.45%)
    12used 270 KiB (0.2%) 12fs vfat 12block-size 512 B 12dev /dev/sda7 12maj-min 8:7
    12label N/A 12uuid 0188-330D
12Swap:
  12Alert No swap data was found.
12Unmounted:
  12ID-1 /dev/sda1 12maj-min 8:1 12size 300 MiB 12fs fat (32 bit) 12label SYSTEM
    12uuid ACBF-4ECA
  12ID-2 /dev/sda2 12maj-min 8:2 12size 128 MiB 12fs N/A 12label N/A 12uuid N/A
  12ID-3 /dev/sda3 12maj-min 8:3 12size 558.84 GiB 12fs ntfs 12label OS_Install
    12uuid 54B2C05CB2C04468
  12ID-4 /dev/sda4 12maj-min 8:4 12size 968 MiB 12fs ntfs 12label N/A
    12uuid 1A8C59178C58EEAF
  12ID-5 /dev/sda5 12maj-min 8:5 12size 156.24 GiB 12fs ntfs 12label Data
    12uuid DCFAC4E5FAC4BCD0
  12ID-6 /dev/sda6 12maj-min 8:6 12size 19.75 GiB 12fs ntfs 12label BIOS_RVY
    12uuid 8224C69124C6881D
  12ID-7 /dev/sda8 12maj-min 8:8 12size 29.3 GiB 12fs swap 12label N/A
    12uuid 1baa45e0-67cd-4fff-8c4f-e115f895c063
  12ID-8 /dev/sdb1 12maj-min 8:17 12size 2.49 GiB 12fs N/A 12label MJRO1815
    12uuid 2019-12-29-08-02-01-00
  12ID-9 /dev/sdb2 12maj-min 8:18 12size 4 MiB 12fs N/A 12label MISO_EFI
    12uuid D1C7-AC88
12USB:
  12Hub-1 1-0:1 12info Full speed or root hub 12ports 2 12rev 2.0 12speed 480 Mb/s
    12chip-ID 1d6b:0002 12class-ID 0900
  12Hub-2 1-1:2 12info Intel Integrated Rate Matching Hub 12ports 6 12rev 2.0
    12speed 480 Mb/s 12chip-ID 8087:8008 12class-ID 0900
  12Device-1 1-1.1:3 12info Razer USA RZ01-0321 Gaming Mouse [DeathAdder V2]
    12type Mouse,Keyboard 12driver hid-generic,usbhid 12interfaces 4 12rev 2.0
    12speed 12 Mb/s 12power 100mA 12chip-ID 1532:0084 12class-ID 0300
  12Device-2 1-1.3:4 12info Intel Bluetooth wireless interface 12type Bluetooth
    12driver btusb 12interfaces 2 12rev 2.0 12speed 12 Mb/s 12power 100mA
    12chip-ID 8087:07dc 12class-ID e001
  12Device-3 1-1.4:5 12info Chicony USB 2.0 Webcam Device 12type Video
    12driver uvcvideo 12interfaces 2 12rev 2.0 12speed 480 Mb/s 12power 500mA
    12chip-ID 04f2:b521 12class-ID 0e02 12serial <filter>
  12Device-4 1-1.5:6 12info Realtek RTS5129 Card Reader Controller
    12type <vendor specific> 12driver rtsx_usb,rtsx_usb_ms,rtsx_usb_sdmmc
    12interfaces 1 12rev 2.0 12speed 480 Mb/s 12power 500mA 12chip-ID 0bda:0129
    12class-ID ff00 12serial <filter>
  12Hub-3 2-0:1 12info Hi-speed hub with single TT 12ports 14 12rev 2.0
    12speed 480 Mb/s 12chip-ID 1d6b:0002 12class-ID 0900
  12Hub-4 3-0:1 12info Full speed or root hub 12ports 2 12rev 2.0 12speed 480 Mb/s
    12chip-ID 1d6b:0002 12class-ID 0900
  12Hub-5 3-1:2 12info Intel Integrated Rate Matching Hub 12ports 8 12rev 2.0
    12speed 480 Mb/s 12chip-ID 8087:8000 12class-ID 0900
  12Hub-6 4-0:1 12info Super-speed hub 12ports 4 12rev 3.0 12speed 5 Gb/s
    12chip-ID 1d6b:0003 12class-ID 0900
  12Device-1 4-2:2 12info SanDisk Ultra Flair 12type Mass Storage
    12driver usb-storage 12interfaces 1 12rev 3.0 12speed 5 Gb/s 12power 896mA
    12chip-ID 0781:5591 12class-ID 0806 12serial <filter>
12Sensors:
  12System Temperatures 12cpu 57.0 C 12mobo 27.8 C
  12Fan Speeds (RPM) N/A
12Info:
  12Processes 219 12Uptime 5m 12wakeups 1 12Init systemd 12v 250 12tool systemctl
  12Compilers 12gcc 11.1.0 12clang 13.0.0 12Packages 12pacman 1325 12lib 452 12flatpak 0
  12Client Unknown Client: systemd 12inxi 3.3.12

I’m not sure if I need to provide xrandr output, if so please tell me exactly what I need to type in because I haven’t figured it out.

2

Provide basic Information from live environment:

3

What kernels do you have installed?

mhwd-kernel -li
4

Currently running: 5.4.6-2-MANJARO (linux54)
The following kernels are installed in your system:

  • linux54
5

That’s not right, it’s at 5.4.173-1 in the repositories.

Do you mean :point_down: ?

Now open a Terminal, thats in icons a black rectangle…
Then enter the command:
sudo manjaro-chroot -a
Asks for Password, that is: manjaro

6

Yes that is what I did.

7

Did you also do so when you checked the list of kernels installed?
If you did, that would mean you haven’t updated your system for a long while… It would make (hopefully) more sense had you not, showing the kernel from the liveUSB instead. :thinking:

8

Do I need to enter the chroot command multiple times? I have not exited the live environment at all since I put the command in and the command line still starts with [manjaro /]# rather than [manjaro@manjaro ~]$ which it was before I ran the chroot command.

As for whether I’ve updated the kernel, if running sudo pacman -Syyu doesn’t update kernel, then I probably haven’t.

9

@maycne.sonahoz Dont get confused. Currently running is the live kernel ; even after chroot :wink:
Whereas list installed means the installed system on the disk

Otherwise chroot would depend on the kernel on disk. An then you would not be able to repair a damaged kernel.

i think mhwd-kernel uses same way as uname to determine kernel. But looks into /boot to find installed kernels.

If you want to know the exact kernel installed, you can use

maxi -kv

or

cat /boot/*.kver                                                                                                  
4.19.225-1-MANJARO x64
5.10.93-1-MANJARO x64
5.15.16-1-MANJARO x64
1 Like
10

Well, that’s impractical… Thanks for the clarification.

Alright, next step is to find some logs.

journalctl --catalog --priority=3 --boot=-1
11

Ok, so cat /boot/*.kver says: 5.4.173-1-MANJARO x64

And here’s those logs:

Jan 29 16:23:52 tash-linux kernel: cgroup2: Unknown parameter 'memory_recursiveprot'
Jan 29 16:24:04 tash-linux kernel: Bluetooth: hci0: unexpected event for opcode 0xfc2f
Jan 29 16:23:54 tash-linux systemd-udevd[356]: could not read from '/sys/module/pcc_cpufreq/initstate': No such device
Jan 29 16:24:04 tash-linux kernel: proc: Bad value for 'hidepid'
Jan 29 16:24:09 tash-linux kernel: proc: Bad value for 'hidepid'
Jan 29 16:24:09 tash-linux bluetoothd[928]: src/adapter.c:reset_adv_monitors_complete() Failed to reset Adv Monitors: Unknown Command (0x01)
Jan 29 16:24:12 tash-linux kernel: proc: Bad value for 'hidepid'
Jan 29 16:24:18 tash-linux systemd[1]: Failed to start Light Display Manager.
-- Subject: A start job for unit lightdm.service has failed
-- Defined-By: systemd
-- Support: https://forum.manjaro.org/c/support
-- 
-- A start job for unit lightdm.service has finished with a failure.
-- 
-- The job identifier is 1357 and the job result is failed.
1 Like
12

On the right track, let’s get all logs about the lightdm service.

journalctl --boot=-1 --unit=lightdm
13 
Jan 29 16:24:09 tash-linux systemd[1]: Starting Light Display Manager...
Jan 29 16:24:10 tash-linux systemd[1]: Started Light Display Manager.
Jan 29 16:24:16 tash-linux lightdm[1051]: Traceback (most recent call last):
Jan 29 16:24:16 tash-linux lightdm[1051]:   File "/sbin/prime-switch", line 33, in <module>
Jan 29 16:24:16 tash-linux lightdm[1051]:     sys.exit(load_entry_point('optimus-manager==1.4', 'console_scripts', 'prime-switch')())
Jan 29 16:24:16 tash-linux lightdm[1051]:   File "/sbin/prime-switch", line 22, in importlib_load_entry_point
Jan 29 16:24:16 tash-linux lightdm[1051]:     for entry_point in distribution(dist_name).entry_points
Jan 29 16:24:16 tash-linux lightdm[1051]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 919, in distribution
Jan 29 16:24:16 tash-linux lightdm[1051]:     return Distribution.from_name(distribution_name)
Jan 29 16:24:16 tash-linux lightdm[1051]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 518, in from_name
Jan 29 16:24:16 tash-linux lightdm[1051]:     raise PackageNotFoundError(name)
Jan 29 16:24:16 tash-linux lightdm[1051]: importlib.metadata.PackageNotFoundError: No package metadata was found for optimus-manager
Jan 29 16:24:16 tash-linux systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE
Jan 29 16:24:16 tash-linux systemd[1]: lightdm.service: Failed with result 'exit-code'.
Jan 29 16:24:16 tash-linux systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 1.
Jan 29 16:24:16 tash-linux systemd[1]: Stopped Light Display Manager.
Jan 29 16:24:16 tash-linux systemd[1]: Starting Light Display Manager...
Jan 29 16:24:16 tash-linux systemd[1]: Started Light Display Manager.
Jan 29 16:24:16 tash-linux lightdm[1187]: Traceback (most recent call last):
Jan 29 16:24:16 tash-linux lightdm[1187]:   File "/sbin/prime-switch", line 33, in <module>
Jan 29 16:24:16 tash-linux lightdm[1187]:     sys.exit(load_entry_point('optimus-manager==1.4', 'console_scripts', 'prime-switch')())
Jan 29 16:24:16 tash-linux lightdm[1187]:   File "/sbin/prime-switch", line 22, in importlib_load_entry_point
Jan 29 16:24:16 tash-linux lightdm[1187]:     for entry_point in distribution(dist_name).entry_points
lines 1-23
Jan 29 16:24:16 tash-linux lightdm[1187]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 919, in distribution
Jan 29 16:24:16 tash-linux lightdm[1187]:     return Distribution.from_name(distribution_name)
Jan 29 16:24:16 tash-linux lightdm[1187]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 518, in from_name
Jan 29 16:24:16 tash-linux lightdm[1187]:     raise PackageNotFoundError(name)
Jan 29 16:24:16 tash-linux lightdm[1187]: importlib.metadata.PackageNotFoundError: No package metadata was found for optimus-manager
Jan 29 16:24:16 tash-linux systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE
Jan 29 16:24:16 tash-linux systemd[1]: lightdm.service: Failed with result 'exit-code'.
Jan 29 16:24:17 tash-linux systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 2.
Jan 29 16:24:17 tash-linux systemd[1]: Stopped Light Display Manager.
Jan 29 16:24:17 tash-linux systemd[1]: Starting Light Display Manager...
Jan 29 16:24:17 tash-linux systemd[1]: Started Light Display Manager.
Jan 29 16:24:17 tash-linux lightdm[1194]: Traceback (most recent call last):
Jan 29 16:24:17 tash-linux lightdm[1194]:   File "/sbin/prime-switch", line 33, in <module>
Jan 29 16:24:17 tash-linux lightdm[1194]:     sys.exit(load_entry_point('optimus-manager==1.4', 'console_scripts', 'prime-switch')())
Jan 29 16:24:17 tash-linux lightdm[1194]:   File "/sbin/prime-switch", line 22, in importlib_load_entry_point
Jan 29 16:24:17 tash-linux lightdm[1194]:     for entry_point in distribution(dist_name).entry_points
Jan 29 16:24:17 tash-linux lightdm[1194]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 919, in distribution
Jan 29 16:24:17 tash-linux lightdm[1194]:     return Distribution.from_name(distribution_name)
Jan 29 16:24:17 tash-linux lightdm[1194]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 518, in from_name
Jan 29 16:24:17 tash-linux lightdm[1194]:     raise PackageNotFoundError(name)
Jan 29 16:24:17 tash-linux lightdm[1194]: importlib.metadata.PackageNotFoundError: No package metadata was found for optimus-manager
Jan 29 16:24:17 tash-linux systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE
Jan 29 16:24:17 tash-linux systemd[1]: lightdm.service: Failed with result 'exit-code'.
lines 24-46
Jan 29 16:24:17 tash-linux systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 3.
Jan 29 16:24:17 tash-linux systemd[1]: Stopped Light Display Manager.
Jan 29 16:24:17 tash-linux systemd[1]: Starting Light Display Manager...
Jan 29 16:24:17 tash-linux systemd[1]: Started Light Display Manager.
Jan 29 16:24:17 tash-linux lightdm[1201]: Traceback (most recent call last):
Jan 29 16:24:17 tash-linux lightdm[1201]:   File "/sbin/prime-switch", line 33, in <module>
Jan 29 16:24:17 tash-linux lightdm[1201]:     sys.exit(load_entry_point('optimus-manager==1.4', 'console_scripts', 'prime-switch')())
Jan 29 16:24:17 tash-linux lightdm[1201]:   File "/sbin/prime-switch", line 22, in importlib_load_entry_point
Jan 29 16:24:17 tash-linux lightdm[1201]:     for entry_point in distribution(dist_name).entry_points
Jan 29 16:24:17 tash-linux lightdm[1201]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 919, in distribution
Jan 29 16:24:17 tash-linux lightdm[1201]:     return Distribution.from_name(distribution_name)
Jan 29 16:24:17 tash-linux lightdm[1201]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 518, in from_name
Jan 29 16:24:17 tash-linux lightdm[1201]:     raise PackageNotFoundError(name)
Jan 29 16:24:17 tash-linux lightdm[1201]: importlib.metadata.PackageNotFoundError: No package metadata was found for optimus-manager
Jan 29 16:24:17 tash-linux systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE
Jan 29 16:24:17 tash-linux systemd[1]: lightdm.service: Failed with result 'exit-code'.
Jan 29 16:24:18 tash-linux systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 4.
Jan 29 16:24:18 tash-linux systemd[1]: Stopped Light Display Manager.
Jan 29 16:24:18 tash-linux systemd[1]: Starting Light Display Manager...
Jan 29 16:24:18 tash-linux systemd[1]: Started Light Display Manager.
Jan 29 16:24:18 tash-linux lightdm[1208]: Traceback (most recent call last):
Jan 29 16:24:18 tash-linux lightdm[1208]:   File "/sbin/prime-switch", line 33, in <module>
Jan 29 16:24:18 tash-linux lightdm[1208]:     sys.exit(load_entry_point('optimus-manager==1.4', 'console_scripts', 'prime-switch')())
Lines 47-69
Jan 29 16:24:18 tash-linux lightdm[1208]:   File "/sbin/prime-switch", line 22, in importlib_load_entry_point
Jan 29 16:24:18 tash-linux lightdm[1208]:     for entry_point in distribution(dist_name).entry_points
Jan 29 16:24:18 tash-linux lightdm[1208]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 919, in distribution
Jan 29 16:24:18 tash-linux lightdm[1208]:     return Distribution.from_name(distribution_name)
Jan 29 16:24:18 tash-linux lightdm[1208]:   File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 518, in from_name
Jan 29 16:24:18 tash-linux lightdm[1208]:     raise PackageNotFoundError(name)
Jan 29 16:24:18 tash-linux lightdm[1208]: importlib.metadata.PackageNotFoundError: No package metadata was found for optimus-manager
Jan 29 16:24:18 tash-linux systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE
Jan 29 16:24:18 tash-linux systemd[1]: lightdm.service: Failed with result 'exit-code'.
Jan 29 16:24:18 tash-linux systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 5.
Jan 29 16:24:18 tash-linux systemd[1]: Stopped Light Display Manager.
Jan 29 16:24:18 tash-linux systemd[1]: lightdm.service: Start request repeated too quickly.
Jan 29 16:24:18 tash-linux systemd[1]: lightdm.service: Failed with result 'exit-code'.
Jan 29 16:24:18 tash-linux systemd[1]: Failed to start Light Display Manager.
lines 61-83/83 (END)
14

On my system lightdm did restart 20 times because xorg was not running :wink:
You may find detailed infos in /var/log/…
Look for logs of xorg and lightdm

15

Here’s your problem: lightdm looks for optimus-manager – which you installed for managing your GPUs i suppose – but fails to find it.
Lucky you, others also had the issue and documented it: AUR (en) - optimus-manager

  • the package needs to be rebuilt following the python update
  • a required library has changed package, you need to get the new one
pamac install mesa-utils
pamac build optimus-manager
1 Like
16

First command went through fine, second one failed:

Warning: Building packages as dynamic user
Warning: Setting build directory to /var/cache/pamac
Preparing...
Checking optimus-manager dependencies...
Resolving dependencies...
Checking inter-conflicts...

To build (1):
  optimus-manager  1.4-3  (1.4-1)  AUR


Edit build files : [e] 
Apply transaction ? [e/y/N] y

Cloning optimus-manager build files...
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down
Error: Failed to build optimus-manager
17

That’s unexpected. Sadly i have a hard time understanding how that could be… :cold_sweat:

I have a few ideas to proceed, unless someone else comes up with a better one:

  • Try booting into your system now. Hopefully, having installed mesa-utils may be sufficient for optimus-manager to start. Then you may be able to update the latter.
  • Remove optimus-manager and try booting into your system. lightdm may then use whatever GPU to start X, and once logged in, you may install optimus-manager back. The idea here is, since optimus-manager is from AUR, it shouldn’t be required for your system to boot.
18

Your second suggestion worked and I’m back in. Thank you so much @maycne.sonahoz & @andreas85!!

19

:wink:

20

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