Failed to start light display manager after kernel update 5.10 to 5.11

Failed to start light display manager (XCFE) after kernel update 5.10 to 5.11; the message is “Failed to start Light Display Manager”

$ lspci -k | grep -A2 -E ‘VGA’
01:00.0 VGA compatible controller: NVIDIA Corporation GF108GL [Quadro 600] (rev a1)
Subsystem: NVIDIA Corporation Device 0835
Kernel driver in use: nvidia

Note that kernel in use is not nvidia on 5.11, but nouveau… I’ve just seen that now, and I’ve edited the post (the command output is from kernel 5.10, as it was esear to cut&paste the result)… but noveau is not reported by mhwd (in 5.11 kernel):

$ mhwd -l

0000:01:00.0 (0300:10de:0df8) Display controller nVidia Corporation:


              NAME               VERSION          FREEDRIVER           TYPE

video-nvidia-390xx            2020.11.30               false            PCI
       video-linux            2018.05.04                true            PCI

startx produces an error when it starts NVidia, and when called from grub screen it hangs and doesn’t show anything (because of silent boot quiet option).

I’ve tried to change GRUB_GFXMODE in /etc/default/grub, as it had an “auto” value, and the user selection seems not to be in available videoinfo options, but the result was the same after sudo update-grub.

check in journallog after login in TTY ( Ctrl+Alt +F2 to F7)

sudo journalctl -b0 -p4

It seems I have take the nouveau reference away… but there is a driver fail. The boot journal reports several errors… one of such errors is Failed to find module ‘nvidia’

$ sudo inxi -G
Graphics:  Device-1: NVIDIA GF108GL [Quadro 600] driver: N/A 
           Display: server: X.org 1.20.10 driver: loaded: N/A failed: nvidia tty: 200x75 
           Message: Advanced graphics data unavailable in console for root. 

$ sudo mhwd -li -d
   NAME:	video-nvidia-390xx
   ATTACHED:	PCI
   VERSION:	2020.11.30
   INFO:	Closed source NVIDIA drivers for linux.
   PRIORITY:	3
   FREEDRIVER:	false
   DEPENDS:	-
   CONFLICTS:	video*nvidia* 
   CLASSIDS:	0300 0302 
   VENDORIDS:	10de 

   NAME:	video-linux
   ATTACHED:	PCI
   VERSION:	2018.05.04
   INFO:	Standard open source drivers.
   PRIORITY:	2
   FREEDRIVER:	true
   DEPENDS:	-
   CONFLICTS:	-
   CLASSIDS:	0300 0380 0302 
   VENDORIDS:	1002 8086 10de 

Warning: no installed configs for USB devices found!

$ sudo journalctl -b0 -p4
-- Journal begins at Thu 2020-11-26 05:55:06 CET, ends at Sun 2021-04-18 04:23:49 CEST. --
d’abr. 18 04:17:06 Skye kernel: ACPI BIOS Warning (bug): 32/64X length mismatch in FADT/Gpe0Block: 128/64 (20201113/tbfadt-564)
d’abr. 18 04:17:06 Skye kernel: x86/cpu: VMX (outside TXT) disabled by BIOS
d’abr. 18 04:17:06 Skye kernel: core: PEBS disabled due to CPU errata
d’abr. 18 04:17:07 Skye kernel: Expanded resource Reserved due to conflict with PCI Bus 0000:00
d’abr. 18 04:17:07 Skye kernel: Expanded resource Reserved due to conflict with PCI Bus 0000:00
d’abr. 18 04:17:07 Skye kernel: pnp 00:00: disabling [io  0x0800-0x085f] because it overlaps 0000:00:1f.0 BAR 13 [io  0x0800-0x087f]
d’abr. 18 04:17:07 Skye kernel: pnp 00:00: disabling [io  0x0860-0x08ff] because it overlaps 0000:00:1f.0 BAR 13 [io  0x0800-0x087f]
d’abr. 18 04:17:05 Skye systemd-modules-load[224]: Failed to find module 'nvidia'
d’abr. 18 04:17:05 Skye systemd-modules-load[224]: Failed to find module 'nvidia-drm'
d’abr. 18 04:17:19 Skye kernel: ACPI Warning: SystemIO range 0x0000000000000828-0x000000000000082F conflicts with OpRegion 0x0000000000000828-0x000000000000082D (\GLBC) (20201113/utaddress-204)
d’abr. 18 04:17:19 Skye kernel: ACPI Warning: SystemIO range 0x0000000000000828-0x000000000000082F conflicts with OpRegion 0x000000000000082A-0x000000000000082A (\SACT) (20201113/utaddress-204)
d’abr. 18 04:17:19 Skye kernel: ACPI Warning: SystemIO range 0x0000000000000828-0x000000000000082F conflicts with OpRegion 0x0000000000000828-0x0000000000000828 (\SSTS) (20201113/utaddress-204)
d’abr. 18 04:17:19 Skye kernel: lpc_ich: Resource conflict(s) found affecting gpio_ich
d’abr. 18 04:17:19 Skye kernel: coretemp coretemp.0: Using relative temperature scale!
d’abr. 18 04:17:19 Skye kernel: coretemp coretemp.0: Using relative temperature scale!
d’abr. 18 04:17:19 Skye kernel: at24 0-0050: supply vcc not found, using dummy regulator
d’abr. 18 04:17:19 Skye kernel: at24 0-0051: supply vcc not found, using dummy regulator
d’abr. 18 04:17:19 Skye kernel: at24 0-0052: supply vcc not found, using dummy regulator
d’abr. 18 04:17:19 Skye kernel: at24 0-0053: supply vcc not found, using dummy regulator
d’abr. 18 04:17:19 Skye kernel: kauditd_printk_skb: 31 callbacks suppressed
d’abr. 18 04:17:25 Skye kernel: kauditd_printk_skb: 8 callbacks suppressed
d’abr. 18 04:17:26 Skye systemd[1]: lightdm.service: Failed with result 'exit-code'.
d’abr. 18 04:17:27 Skye systemd[1]: lightdm.service: Failed with result 'exit-code'.
d’abr. 18 04:17:27 Skye systemd[1]: lightdm.service: Failed with result 'exit-code'.
d’abr. 18 04:17:27 Skye systemd[1]: lightdm.service: Failed with result 'exit-code'.
d’abr. 18 04:17:28 Skye systemd[1]: lightdm.service: Failed with result 'exit-code'.
d’abr. 18 04:17:28 Skye systemd[1]: lightdm.service: Start request repeated too quickly.
d’abr. 18 04:17:28 Skye systemd[1]: lightdm.service: Failed with result 'exit-code'.
d’abr. 18 04:17:28 Skye systemd[1]: Failed to start Light Display Manager.
d’abr. 18 04:17:35 Skye kernel: kauditd_printk_skb: 15 callbacks suppressed
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Configuration file /root/.config/autostart/disable-dpms.desktop is marked executable. Please remove executable permission bits. Proceeding anyway.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Configuration file /root/.config/autostart/xfce-pbw.sh is marked executable. Please remove executable permission bits. Proceeding anyway.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: /root/.config/autostart/xfce-pbw.sh:2: Assignment outside of section. Ignoring.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: /root/.config/autostart/xfce-pbw.sh:3: Assignment outside of section. Ignoring.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: /root/.config/autostart/xfce-pbw.sh:4: Assignment outside of section. Ignoring.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: /root/.config/autostart/xfce-pbw.sh:5: Assignment outside of section. Ignoring.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: /root/.config/autostart/xfce-pbw.sh:6: Assignment outside of section. Ignoring.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: /root/.config/autostart/xfce-pbw.sh:7: Assignment outside of section. Ignoring.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Configuration file /root/.config/autostart/live-session.desktop is marked executable. Please remove executable permission bits. Proceeding anyway.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: /root/.config/autostart/xcape.desktop:9: Unknown key name 'RunHook' in section 'Desktop Entry', ignoring.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Configuration file /root/.config/autostart/pulseaudio-ctl.desktop is marked executable. Please remove executable permission bits. Proceeding anyway.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Configuration file /root/.config/autostart/xfce-panel-workaround.desktop is marked executable. Please remove executable permission bits. Proceeding anyway.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Configuration file /etc/xdg/autostart/org.kde.discover.notifier.desktop is marked executable. Please remove executable permission bits. Proceeding anyway.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Configuration file /etc/xdg/autostart/msm_notifier.desktop is marked executable. Please remove executable permission bits. Proceeding anyway.
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Not generating service for XDG autostart app-live\x2dsession-autostart.service, error parsing Exec= line: No such file or directory
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Not generating service for XDG autostart app-ma\x2dlauncher-autostart.service, error parsing Exec= line: No such file or directory
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Not generating service for XDG autostart app-pulseaudio\x2dctl-autostart.service, error parsing Exec= line: No such file or directory
d’abr. 18 04:23:48 Skye systemd-xdg-autostart-generator[887]: Not generating service for XDG autostart app-disable\x2ddpms-autostart.service, error parsing Exec= line: No such file or directory

No solution found to starx on Linux 5.11… back to Linux 5.10

Moreover, 5.10 is LTS kernel, and that is what really matters… but it’s a pity I can’t upgrade this computer…

[FAILED] Failed to start Light Display Manager when I try to boot into Manjaro.

I can’t open tty. I tried CTL+ALT+F1 to F7 but nothing happens.

2 posts were split to a new topic: Lightdm fails to start after update

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