[nvidia340] display hangs 10s on boot with nvidia-340

[ysfr]

Since ubuntu-drivers-common 1:0.9.0~0.20.04.6,
system running kernel 5.4 & nvidia-340 will experience
10s useless delay on boot because
gpu-manager is waiting for nvidia-drm to load
& nvidia-drm is not built in with nvidia-340.

Several legacy nvidia cards are stuck to nvidia-340 & Kernel 5.4 as detailled in:
https://nvidia.custhelp.com/app/answers/detail/a_id/3142/%7E/support-timeframes-for-unix-legacy-gpu-releases

See prior investigation in comments of
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1958488

[Daniel van Vugt (vanvugt)]

Sounds like the hang is intentional?

https://launchpad.net/ubuntu/+source/ubuntu-drivers-common/1:0.9.0~0.20.04.6

[jeremyszu (os369510)]

Hi ysfr,

Would you please help to test this version?
https://launchpad.net/~os369510/+archive/ubuntu/lp1973604

[ysfr (ysfr)]

Hi jeremyszu,

your update proposal works like a charm !
Boot time is back to normal
(no more 10s delay stuck with gpu-manager.service/plymouth-quit-wait.service)

/var/log/gpu-manager.log exhibits
Has the system changed? No
can't access /run/u-d-c-nvidia-drm-was-loaded file
Takes 0ms to wait for nvidia udev rules completed.

instead of many "can't access /run/u-d-c-nvidia-drm-was-loaded file" lines
and Takes 10000ms to wait for nvidia udev rules completed.

Sounds VALID for me !

[jeremyszu (os369510)]

MP submitted
https://github.com/tseliot/ubuntu-drivers-common/pull/72
https://github.com/tseliot/ubuntu-drivers-common/pull/73

Skip impish bcoz July 2022 soon

[Launchpad Janitor (janitor)]

This bug was fixed in the package ubuntu-drivers-common - 1:0.9.6.2

---------------
ubuntu-drivers-common (1:0.9.6.2) kinetic; urgency=medium

  [ Jeremy Szu ]
  * share/hybrid/gpu-manager.c:
    - Don't wait for nvidia-drm when dealing with nvidia-340
      (LP: #1973604).

  [ Ēriks Remess ]
  * UbuntuDrivers/kerneldetection.py:
    - Detect unsigned kernel images correctly.

  [ Alberto Milone ]
  * UbuntuDrivers/detect.py:
    - Make sure -open drivers have a lower priority.

 -- Alberto Milone <email address hidden> Thu, 11 Aug 2022 15:09:46 +0000