After latest upgrade: System stops with ‘Failed to start Light Display Manager’
Hello, I’m about one step above a newbie so speak slowly.
So after installing the latest upgrade and rebooting it all stopped with the above error.
Opening the tty I tried startx. It didn’t. The error messages were:
(EE) no screens found(EE) and
Unable to connect to to Xserver, connection refused.
After much poking , prodding and reading later I have a list of various error messages which might make sense to somebody.
From Xorg.0.log:
6.523] (II) Module nvidia: vendor="NVIDIA Corporation"
[ 6.523] compiled for 1.6.99.901, module version = 1.0.0
[ 6.523] Module class: X.Org Video Driver
[ 6.524] (II) NVIDIA dlloader X Driver 495.44 Fri Oct 22 06:11:21 UTC 2021
[ 6.524] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[ 6.524] (II) Loading sub module "fb"
[ 6.524] (II) LoadModule: "fb"
[ 6.524] (II) Module "fb" already built-in
[ 6.524] (II) Loading sub module "wfb"
[ 6.524] (II) LoadModule: "wfb"
[ 6.524] (II) Loading /usr/lib/xorg/modules/libwfb.so
[ 6.524] (II) Module wfb: vendor="X.Org Foundation"
[ 6.524] compiled for 1.21.1.1, module version = 1.0.0
[ 6.524] ABI class: X.Org ANSI C Emulation, version 0.4
[ 6.524] (II) Loading sub module "ramdac"
[ 6.524] (II) LoadModule: "ramdac"
[ 6.524] (II) Module "ramdac" already built-in
[ 6.524] (WW) NVIDIA(0): The NVIDIA GeForce GT 710 GPU installed in this system is
[ 6.524] (WW) NVIDIA(0): supported through the NVIDIA 470.xx Legacy drivers. Please
[ 6.524] (WW) NVIDIA(0): visit http://www.nvidia.com/object/unix.html for more
[ 6.524] (WW) NVIDIA(0): information. The 495.44 NVIDIA driver will ignore this
[ 6.524] (WW) NVIDIA(0): GPU. Continuing probe...
[ 6.524] (WW) NVIDIA(0): The NVIDIA GeForce GT 710 GPU installed in this system is
[ 6.524] (WW) NVIDIA(0): supported through the NVIDIA 470.xx Legacy drivers. Please
[ 6.524] (WW) NVIDIA(0): visit http://www.nvidia.com/object/unix.html for more
[ 6.524] (WW) NVIDIA(0): information. The 495.44 NVIDIA driver will ignore this
[ 6.524] (WW) NVIDIA(0): GPU. Continuing probe...
[ 6.524] (EE) No devices detected.
[ 6.524] (EE)
Fatal server error:
[ 6.525] (EE) no screens found(EE)
The (WW) section would appear to say that driver 495.44 (which I think we are trying to install) doesn’t like me :(.
From the release notes:
Nvidia 495xx driver series drops Keppler support. (mine is Keppler).
From yay -Q | grep nvidia
(This is from my current live system)
lib32-nvidia-utils 470.63.01-1
linux510-nvidia 470.63.01-13
linux514-nvidia 470.63.01-12
mhwd-nvidia 470.63.01-1
mhwd-nvidia-390xx 390.144-1
nvidia-utils 470.63.01-2
Running the same command on the failed system shows the appropriate references in the right places to 495xx on the failing system which I guess is an indication that it’s installed.
I think I should be installing 470.86
Any suggestions?