[gentoo-user] nvidia driver and genkernel above 4.9 issues

[András Csányi]

Hi All,

I have a fresh gentoo install and it works fine with 4.9 kernel,
nvidia video card does its job like a charm. However, I compiled a
4.15.3 kernel with the same setup, xorg-drivers recompiled,
nvidia-drivers recompiled, eselect kernel set shows to the new kernel
and I have strange behavior:

During boot I see a message which says nvidia.ko cannot be loaded due
to some signature issue. Checking the dmesg under windows I cannot see
this error message.
After successful boot obviously xdm do not start, but the whole screen
vibrates/blinking fast.

I haven't boot from live-cd and chroot and recompile xorg-drivers and
nvidia-drivers yet.

I saw a few article about that this might be due to Spectre/Meltdown,
but I'm not skilled in kernel things.

Any suggestion what I can do?

Thanks any help in advance!

in dmesg I see only this:

[    3.194322] nvidia: loading out-of-tree module taints kernel.
[    3.194326] nvidia: module license 'NVIDIA' taints kernel.
[    3.194326] Disabling lock debugging due to kernel taint
[    3.196697] nvidia: module verification failed: signature and/or
required key missing - tainting kernel
[    3.200183] nvidia-nvlink: Nvlink Core is being initialized, major
device number 240
...
[    4.477269] NVRM: The NVIDIA probe routine was not called for 1 device(s).
[    4.477270] NVRM: This can occur when a driver such as:
               NVRM: nouveau, rivafb, nvidiafb or rivatv
               NVRM: was loaded and obtained ownership of the NVIDIA device(s).
[    4.477270] NVRM: Try unloading the conflicting kernel module (and/or
               NVRM: reconfigure your kernel without the conflicting
               NVRM: driver(s)), then try loading the NVIDIA kernel module
               NVRM: again.
[    4.477271] NVRM: No NVIDIA graphics adapter probed!
[    4.477368] nvidia-nvlink: Unregistered the Nvlink Core, major
device number 240
[    4.499175] nvidia_modeset: Unknown symbol nv_kthread_q_flush (err 0)
[    4.499201] nvidia_modeset: Unknown symbol nvidia_register_module (err 0)
[    4.499227] nvidia_modeset: Unknown symbol
nv_kthread_q_schedule_q_item (err 0)
[    4.499254] nvidia_modeset: Unknown symbol nvidia_get_rm_ops (err 0)
[    4.499267] nvidia_modeset: Unknown symbol nv_kthread_q_item_init (err 0)
[    4.499275] nvidia_modeset: Unknown symbol nv_kthread_q_stop (err 0)
[    4.499281] nvidia_modeset: Unknown symbol nvidia_unregister_module (err 0)
[    4.499293] nvidia_modeset: Unknown symbol nv_kthread_q_init (err 0)
[    4.510986] nvidia-nvlink: Nvlink Core is being initialized, major
device number 240
[    4.511179] NVRM: The NVIDIA probe routine was not called for 1 device(s).
[    4.511179] NVRM: This can occur when a driver such as:
               NVRM: nouveau, rivafb, nvidiafb or rivatv
               NVRM: was loaded and obtained ownership of the NVIDIA device(s).
[    4.511180] NVRM: Try unloading the conflicting kernel module (and/or
               NVRM: reconfigure your kernel without the conflicting
               NVRM: driver(s)), then try loading the NVIDIA kernel module
               NVRM: again.
[    4.511180] NVRM: No NVIDIA graphics adapter probed!
[    4.511254] nvidia-nvlink: Unregistered the Nvlink Core, major
device number 240
[    4.529357] nvidia-nvlink: Nvlink Core is being initialized, major
device number 240
[    4.529496] NVRM: The NVIDIA probe routine was not called for 1 device(s).
[    4.529496] NVRM: This can occur when a driver such as:
               NVRM: nouveau, rivafb, nvidiafb or rivatv
               NVRM: was loaded and obtained ownership of the NVIDIA device(s).
[    4.529497] NVRM: Try unloading the conflicting kernel module (and/or
               NVRM: reconfigure your kernel without the conflicting
               NVRM: driver(s)), then try loading the NVIDIA kernel module
               NVRM: again.
[    4.529497] NVRM: No NVIDIA graphics adapter probed!
[    4.529652] nvidia-nvlink: Unregistered the Nvlink Core, major
device number 240
[    4.536067] usb 1-1: device not accepting address 5, error -71
[    4.536095] usb usb1-port1: unable to enumerate USB device
[    4.564331] nvidia-nvlink: Nvlink Core is being initialized, major
device number 240
[    4.564459] NVRM: The NVIDIA probe routine was not called for 1 device(s).
[    4.564460] NVRM: This can occur when a driver such as:
               NVRM: nouveau, rivafb, nvidiafb or rivatv
               NVRM: was loaded and obtained ownership of the NVIDIA device(s).
[    4.564460] NVRM: Try unloading the conflicting kernel module (and/or
               NVRM: reconfigure your kernel without the conflicting
               NVRM: driver(s)), then try loading the NVIDIA kernel module
               NVRM: again.
[    4.564460] NVRM: No NVIDIA graphics adapter probed!
[    4.564514] nvidia-nvlink: Unregistered the Nvlink Core, major
device number 240
[    4.583414] nvidia-nvlink: Nvlink Core is being initialized, major
device number 240
[    4.583525] NVRM: The NVIDIA probe routine was not called for 1 device(s).
[    4.583526] NVRM: This can occur when a driver such as:
               NVRM: nouveau, rivafb, nvidiafb or rivatv
               NVRM: was loaded and obtained ownership of the NVIDIA device(s).
[    4.583526] NVRM: Try unloading the conflicting kernel module (and/or
               NVRM: reconfigure your kernel without the conflicting
               NVRM: driver(s)), then try loading the NVIDIA kernel module
               NVRM: again.
[    4.583526] NVRM: No NVIDIA graphics adapter probed!
[    4.583571] nvidia-nvlink: Unregistered the Nvlink Core, major
device number 240
[    4.650095] usb 1-2: new high-speed USB device number 6 using xhci_hcd
[    4.728966] input: HDA NVidia HDMI/DP,pcm=3 as
/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input12
[    4.729051] input: HDA NVidia HDMI/DP,pcm=7 as
/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input13
[    4.729078] input: HDA NVidia HDMI/DP,pcm=8 as
/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input14
[    4.729117] input: HDA NVidia HDMI/DP,pcm=9 as
/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card2/input15
- -
--  Csanyi Andras (Sayusi Ando)  -- http://sayusi.hu --
http://facebook.com/andras.csanyi
--  ""Trust in God and keep your gunpowder dry!" - Cromwell