SRU: Set on-demand as default, enable RTD3 only on laptops and decouple on-demand with RTD3

[Dirk Su]

[Impact]

 * Ubuntu will set GPU mode to performance as default which may use more power
 * User can't use GPU for other purpose (eg: deep-learning) if RTD3 is not supported
 * According to Nvidia README, the RTD3 doesn't support on non-laptop machine

[Test Plan]

 * Install Ubuntu, and then execute 'ubuntu-drivers install' to install GPU driver. After the installation, reboot the system. Execute "prime-select query" should get "on-demand"
 * On non-laptop machine. Can set GPU mode to on-demand
 * On laptop with GPU in runtime PM support list. Set GPU mode to on-demand and Nvidia driver is loaded with "NVreg_DynamicPowerManagement=0x02"

[Where problems could occur]

 * on-demand mode supported after nvidia driver 450. And focal does not have nvidia driver lower than 450.
 * With GPU supported RTD3 not able enable runtime PM on non-laptop. But based on the Nvidia README, this case shall not happened.

[Other Info]

Changelogs:

nvidia-prime (0.8.16~0.20.04.2) focal; urgency=medium

  [ Jeremy Szu ]
  * Set on-demand mode as default nvidia mode (LP: #1942307)

  [ Alberto Milone ]
  * prime-select:
    - Detect chassis type and enable RTD3 only
      on laptops (LP: #1942788).
    - on-demand mode doesn't need to depend on
      RTD3 (LP: #1942789).
    - Use bootvga detection when last_gfx_boot
      is not available.
    - Don't check the current profile when setting
      a profile (LP: #1946476).
    - Catch BrokenPipeError.
    - Use bootvga detection when last_gfx_boot is
      not available.

nvidia-prime (0.8.16.2~0.21.04.1) hirsute; urgency=medium

  [ Jeremy Szu ]
  * Set on-demand mode as default nvidia mode (LP: #1942307)

  [ Alberto Milone ]
  * prime-select:
    - Detect chassis type and enable RTD3 only
      on laptops (LP: #1942788).
    - on-demand mode doesn't need to depend on
      RTD3 (LP: #1942789).
    - Use bootvga detection when last_gfx_boot
      is not available.
    - Don't check the current profile when setting
      a profile (LP: #1946476).

[Dirk Su (dirksu)]

Upload debdiff for focal

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "nvidia-prime_0.8.16~0.20.04.2.debdiff" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]

[Dirk Su (dirksu)]

Upload debdiff for focal

[Dirk Su (dirksu)]

Upload debdiff for hirsute

[Alberto Milone (albertomilone)]

I added a couple of fixes that you missed in the debdiffs, and I uploaded the packages. I put the changelogs for the uploads in the bug description.

[Brian Murray (brian-murray)]

The Hirsute Hippo has reached End of Life, so this bug will not be fixed for that release.