X Server doesn't start after last update (13.12.2021)

[GordonFreemann]

After the latest update my xserver won’t start.
This seems similar to " [Failed to load lightdm after last update]" (I’m not allowed to use links).
Instead of using lightdm I’m using gdm. I still have access to the CLI.

I’m not very familiar with Linux, but usually I can help myself by reading and partially adapting already existing threats, but this time I’m out of my depth.
I could be the drives, but before I temper with my system and
I’ll provide any system information that is needed, but I don’t won’t to flood the threat with unnecessary

systemctl list-unit-files | grep gdm
gdm.service disabled disabled

systemctl enable gdm
Failed to enable unit: File/etc/systemd/system/display-manager.service already exists and is a symlink to /usr/lib/systemd/system/sddm.service

This is the xorg logfile

[  4415.232] 
This is a pre-release version of the X server from The X.Org Foundation.
It is not supported in any way.
Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.
Select the "xorg" product for bugs you find in this release.
Before reporting bugs in pre-release versions please check the
latest version in the X.Org Foundation git repository.
See http://wiki.x.org/wiki/GitPage for git access instructions.
[  4415.243] 
X.Org X Server 1.21.1.1
X Protocol Version 11, Revision 0
[  4415.286] Current Operating System: Linux fenris 5.10.83-1-MANJARO #1 SMP PREEMPT Wed Dec 1 14:46:38 UTC 2021 x86_64
[  4415.287] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64 root=UUID=dadbd8fb-c793-4506-8638-d71ec8e4341c rw quiet apparmor=1 security=apparmor udev.log_priority=3
[  4415.331]  
[  4415.342] Current version of pixman: 0.40.0
[  4415.363] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[  4415.363] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[  4415.404] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Dec 14 09:33:04 2021
[  4415.414] (==) Using config directory: "/etc/X11/xorg.conf.d"
[  4415.424] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[  4415.424] (==) ServerLayout "layout"
[  4415.424] (==) No screen section available. Using defaults.
[  4415.424] (**) |-->Screen "Default Screen Section" (0)
[  4415.424] (**) |   |-->Monitor "<default monitor>"
[  4415.424] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[  4415.424] (==) Automatically adding devices
[  4415.424] (==) Automatically enabling devices
[  4415.424] (==) Automatically adding GPU devices
[  4415.424] (==) Automatically binding GPU devices
[  4415.424] (==) Max clients allowed: 256, resource mask: 0x1fffff
[  4415.424] (WW) The directory "/usr/share/fonts/OTF" does not exist.
[  4415.424] 	Entry deleted from font path.
[  4415.424] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[  4415.424] 	Entry deleted from font path.
[  4415.424] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi".
[  4415.424] 	Entry deleted from font path.
[  4415.424] 	(Run 'mkfontdir' on "/usr/share/fonts/100dpi").
[  4415.424] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi".
[  4415.424] 	Entry deleted from font path.
[  4415.424] 	(Run 'mkfontdir' on "/usr/share/fonts/75dpi").
[  4415.424] (==) FontPath set to:
	/usr/share/fonts/misc,
	/usr/share/fonts/TTF
[  4415.424] (==) ModulePath set to "/usr/lib/xorg/modules"
[  4415.424] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[  4415.424] (II) Module ABI versions:
[  4415.424] 	X.Org ANSI C Emulation: 0.4
[  4415.424] 	X.Org Video Driver: 25.2
[  4415.424] 	X.Org XInput driver : 24.4
[  4415.424] 	X.Org Server Extension : 10.0
[  4415.425] (++) using VT number 5

[  4415.426] (II) systemd-logind: took control of session /org/freedesktop/login1/session/_31
[  4415.427] (--) PCI:*(1@0:0:0) 10de:1187:1462:2847 rev 161, Mem @ 0xf6000000/16777216, 0xe8000000/134217728, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072
[  4415.427] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[  4415.427] (II) LoadModule: "glx"
[  4415.427] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[  4415.428] (II) Module glx: vendor="X.Org Foundation"
[  4415.428] 	compiled for 1.21.1.1, module version = 1.0.0
[  4415.428] 	ABI class: X.Org Server Extension, version 10.0
[  4415.429] (==) Matched nouveau as autoconfigured driver 0
[  4415.429] (==) Matched nv as autoconfigured driver 1
[  4415.429] (==) Matched modesetting as autoconfigured driver 2
[  4415.429] (==) Matched fbdev as autoconfigured driver 3
[  4415.429] (==) Matched vesa as autoconfigured driver 4
[  4415.429] (==) Assigned the driver to the xf86ConfigLayout
[  4415.429] (II) LoadModule: "nouveau"
[  4415.429] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
[  4415.429] (II) Module nouveau: vendor="X.Org Foundation"
[  4415.429] 	compiled for 1.21.1.1, module version = 1.0.17
[  4415.429] 	Module class: X.Org Video Driver
[  4415.429] 	ABI class: X.Org Video Driver, version 25.2
[  4415.429] (II) LoadModule: "nv"
[  4415.429] (WW) Warning, couldn't open module nv
[  4415.429] (EE) Failed to load module "nv" (module does not exist, 0)
[  4415.429] (II) LoadModule: "modesetting"
[  4415.429] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[  4415.429] (II) Module modesetting: vendor="X.Org Foundation"
[  4415.429] 	compiled for 1.21.1.1, module version = 1.21.1
[  4415.429] 	Module class: X.Org Video Driver
[  4415.429] 	ABI class: X.Org Video Driver, version 25.2
[  4415.429] (II) LoadModule: "fbdev"
[  4415.429] (WW) Warning, couldn't open module fbdev
[  4415.429] (EE) Failed to load module "fbdev" (module does not exist, 0)
[  4415.429] (II) LoadModule: "vesa"
[  4415.429] (WW) Warning, couldn't open module vesa
[  4415.429] (EE) Failed to load module "vesa" (module does not exist, 0)
[  4415.429] (II) NOUVEAU driver 
[  4415.429] (II) NOUVEAU driver for NVIDIA chipset families :
[  4415.429] 	RIVA TNT            (NV04)
[  4415.429] 	RIVA TNT2           (NV05)
[  4415.429] 	GeForce 256         (NV10)
[  4415.429] 	GeForce 2           (NV11, NV15)
[  4415.429] 	GeForce 4MX         (NV17, NV18)
[  4415.429] 	GeForce 3           (NV20)
[  4415.429] 	GeForce 4Ti         (NV25, NV28)
[  4415.429] 	GeForce FX          (NV3x)
[  4415.430] 	GeForce 6           (NV4x)
[  4415.430] 	GeForce 7           (G7x)
[  4415.430] 	GeForce 8           (G8x)
[  4415.430] 	GeForce 9           (G9x)
[  4415.430] 	GeForce GTX 2xx/3xx (GT2xx)
[  4415.430] 	GeForce GTX 4xx/5xx (GFxxx)
[  4415.430] 	GeForce GTX 6xx/7xx (GKxxx)
[  4415.430] 	GeForce GTX 9xx     (GMxxx)
[  4415.430] 	GeForce GTX 10xx    (GPxxx)
[  4415.430] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[  4415.430] (EE) [drm] Failed to open DRM device for pci:0000:01:00.0: -19
[  4415.430] (EE) open /dev/dri/card0: No such file or directory
[  4415.430] (WW) Falling back to old probe method for modesetting
[  4415.430] (EE) open /dev/dri/card0: No such file or directory
[  4415.430] (EE) Screen 0 deleted because of no matching config section.
[  4415.430] (II) UnloadModule: "modesetting"
[  4415.430] (EE) Device(s) detected, but none match those in the config file.
[  4415.430] (EE) 
Fatal server error:
[  4415.430] (EE) no screens found(EE) 
[  4415.430] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[  4415.430] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[  4415.430] (EE) 
[  4415.445] (EE) Server terminated with error (1). Closing log file.

[GordonFreemann]

I have tried the same approach as in the thread I mentioned, but I get an error.

sudo mhwd -i pci video-nvidia 470xx

As my system is setup in German I’ll try to “translate” the error message:
removing nvidia-utils violates the dependency of nvidia-utils needed by cuda.

[NGr]

Hi,

There are a few NVIDIA related issues in the update announcement which may be helpful.

[Stable Update] 2021-12-10 - Kernels, Systemd, LibreOffice, Plasma, Browser, Thunderbird

Known issues and solutions This is a wiki post; please edit as necessary. Please, consider subscribing to the Stable Updates Announcements RSS feed Please don’t post to say everything was great on my side or yes, I have the same error but leave the space for people having issues, or even better: for people having solutions! Use instead to let us know you’re suffering from the same so we can respond to the highest impacted issues first! …

[GordonFreemann]

@NGr,

I have tried the solution about 30 seconds before you send me to the right place (still trying to figure it out by myself).
But it doesn’t work. I cant install the drivers because of dependencies. Not sure how to proceed from there

[NGr]

Could you remove cuda first, then install the required nvidia drivers and then reinstall cuda?

[GordonFreemann]

@NGr,

I have search the internet and found the solution.

This is what I had to do:

sudo pacman -R cuda
sudo mhwd -i pci video-nvidia-470xx
sudo pacman -S cuda

The xserver restarted directly after installing the drivers. I installed cuda afterwards manually.
Pretty straight forward, but I thought I would run into more trouble.

Sorry for the fuss. The information what I had to do was there (although scattered around quite a bit), but I needed the initial impulse to look into the right direction.

Thanks a lot!