[Bug 2080522] Re: UEFI secureboot nvidia installation fails to install appropriate driver

[Jesse M Darnley]

Followed QA test case. The driver packages are installed, the nvidia.ko
module exists and is signed for secure boot, the MOK key was
successfully enrolled, but the driver still fails to load. I'll note a
few things that stand out to me as unusual. The system this was tested
on has an Intel i7-10700K and Nvidia RTX 2060.

The ubuntu-drivers tool used the dkms module method rather than aiming
for the pre-signed module packages we offer. To my understanding, the
intended default is to use the pre-signed modules to avoid having to
enroll a MOK.

Additionally the Ubuntu drivers tool opted for driver version 550. This
is not incorrect, but this does not correspond to either the current LTS
driver version (535) or the current recommended Production Branch driver
version that is recommended for Nvidia cards with Turing architecture or
newer (550-open).

I'm going to check the install logs later to look for more clues.

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https://bugs.launchpad.net/bugs/2080522

Title:
  UEFI secureboot nvidia installation fails to install appropriate
  driver

Status in nvidia-graphics-drivers-550 package in Ubuntu:
  New
Status in ubiquity package in Ubuntu:
  New

Bug description:
  Running through this testcase:
  https://iso.qa.ubuntu.com/qatracker/milestones/461/builds/312970/testcases/1771/results

  Unfortunately, it failed.

  With an offline installation, after reboot, the graphics resolution
  was way off, very zoomed in initially.

  nvidia-smi outputs:
  ```
  NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
  ```

  Interestingly enough, after another reboot, the resolution was
  appropriate.

  An nvidia driver *is* installed: nvidia-driver-550

  However, perhaps it's not the appropriate driver for the graphics
  card.

  Logs and other info will be attached in a comment.

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