[Solved] "No screens found" with Xorg and nvidia

PhotonX · 2022-07-07 06:28:53

Hi guys,

I have a problem similar to https://bbs.archlinux.org/viewtopic.php?id=277750. The problem starts appearing when upgrading the kernel from 5.18.7 to 5.18.9. Downgrading the kernel or using linux-lts is a workaround but obviously I cannot stick to an outdated kernel indefinitely.

Contrary to the thread linked above, I am using nvidia-470xx-dkms for some time already (the video card is a GTX 670) and thus switching from nvidia to nvidia-470xx-dkms won't solve the issue for me.

Here is a broken boot: https://pastebin.com/x1K7aq5w

Here is a working boot: https://pastebin.com/yp08xEDm

As you can see, neither is displaying the "Missing ENDBR" message, so I assume that the proposal of adding

ibt=off

won't help in my case.

In the broken boot's log there are the lines

Jul 07 08:07:58 photon-desktop kernel: nvidia: loading out-of-tree module taints kernel.
Jul 07 08:07:58 photon-desktop kernel: nvidia: module license 'NVIDIA' taints kernel.
Jul 07 08:07:58 photon-desktop kernel: Disabling lock debugging due to kernel taint
Jul 07 08:07:58 photon-desktop kernel: nvidia: module verification failed: signature and/or required key missing - tainting kernel
Jul 07 08:07:58 photon-desktop kernel: module: x86/modules: Skipping invalid relocation target, existing value is nonzero for type 2, loc 0000000053f92f8e, val ffffffffc0d54ccb
Jul 07 08:07:58 photon-desktop kernel: module: x86/modules: Skipping invalid relocation target, existing value is nonzero for type 2, loc 0000000053f92f8e, val ffffffffc0d54ccb
Jul 07 08:07:58 photon-desktop kernel: module: x86/modules: Skipping invalid relocation target, existing value is nonzero for type 2, loc 0000000053f92f8e, val ffffffffc0d54ccb
[...]
Jul 07 08:07:58 photon-desktop systemd-modules-load[225]: Failed to insert module 'nvidia_uvm': Exec format error
[...]
Jul 07 08:07:58 photon-desktop systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE
Jul 07 08:07:58 photon-desktop systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'.
Jul 07 08:07:58 photon-desktop systemd[1]: Failed to start Load Kernel Modules.

However, I don't really know where to go from here. Thanks for any input!

PhotonX

Last edited by PhotonX (2022-07-07 09:29:54)

seth · 2022-07-07 07:31:53

Jul 07 08:07:58 photon-desktop systemd-modules-load[225]: Failed to insert module 'nvidia_uvm': Exec format error

sounds like a version mismatch and you also seem to have the nvidia modules in the initramfs?

dkms status
lsmod | grep nvidia
modprobe -v nvidia

PhotonX · 2022-07-07 08:07:54

Thanks for your reply!

sounds like a version mismatch and you also seem to have the nvidia modules in the initramfs?

I'm not sure, how do I know?

dkms status

Deprecated feature: REMAKE_INITRD
akvcam/1.2.2, 5.15.52-1-lts, x86_64: installed
Deprecated feature: REMAKE_INITRD
Deprecated feature: REMAKE_INITRD

akvcam/1.2.2, 5.18.9-arch1-1, x86_64: installed
Deprecated feature: REMAKE_INITRD

nvidia/470.129.06, 5.15.52-1-lts, x86_64: installed
nvidia/470.129.06, 5.18.9-arch1-1, x86_64: installed
vboxhost/5.2.0: added
vboxhost/6.1.34_OSE, 5.15.52-1-lts, x86_64: installed
vboxhost/6.1.34_OSE, 5.18.9-arch1-1, x86_64: installed

lsmod | grep nvidia

The output is empty, so the module isn't loaded, I guess.

modprobe -v nvidia

modprobe: ERROR: could not insert 'nvidia': Exec format error
insmod /lib/modules/5.18.9-arch1-1/updates/dkms/nvidia.ko.zst

seth · 2022-07-07 08:24:52

You've installed the dkms module for 5.18.9-arch1-1 but it doesn't load.
Try ibt=off regardless and if that doesn't work, rebuild the module - https://wiki.archlinux.org/title/Dynami … ld_modules
Pay attention to warnings/erros during the build process.

PhotonX · 2022-07-07 08:50:21

ibt=off didn't make any difference.

Trying to rebuild the module doesn't work because the module is already there:

$ dkms install nvidia/470.129.06
Module nvidia/470.129.06 already installed on kernel 5.18.9-arch1-1 (x86_64).

However I now looked into the /var/lib/dkms/nvidia/470.129.06/5.18.9-arch1-1/x86_64/log/make.log (from some build in the past) and see many of

/var/lib/dkms/nvidia/470.129.06/build/nvidia.prelink.o: warning: objtool: _nv003098rm()+0x8d0d: relocation to !ENDBR: _nv018395rm()+0x0

So I guess, I will remove the nvidia 470 packages, boot with ibt=off and install them. Looks like this ibt=off is needed at build time and not at run time...

Last edited by PhotonX (2022-07-07 08:51:11)

PhotonX · 2022-07-07 09:29:32

ibt=off solved the issue for me, thanks again for your support!

Arch Linux

#1 2022-07-07 06:28:53

[Solved] "No screens found" with Xorg and nvidia

#2 2022-07-07 07:31:53

Re: [Solved] "No screens found" with Xorg and nvidia

#3 2022-07-07 08:07:54

Re: [Solved] "No screens found" with Xorg and nvidia

#4 2022-07-07 08:24:52

Re: [Solved] "No screens found" with Xorg and nvidia

#5 2022-07-07 08:50:21

Re: [Solved] "No screens found" with Xorg and nvidia

#6 2022-07-07 09:29:32

Re: [Solved] "No screens found" with Xorg and nvidia

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