** Also affects: nvidia-prime (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Also affects: nvidia-prime (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: nvidia-prime (Ubuntu Focal)
Status: New => Triaged
** Changed in: nvidia-prime (Ubuntu Hirsute)
Status: New => Triaged
** Changed in: nvidia-prime (Ubuntu Focal)
Importance: Undecided => High
** Changed in: nvidia-prime (Ubuntu Hirsute)
Importance: Undecided => High
** Changed in: nvidia-prime (Ubuntu Focal)
Assignee: (unassigned) => Alberto Milone (albertomilone)
** Changed in: nvidia-prime (Ubuntu Hirsute)
Assignee: (unassigned) => Alberto Milone (albertomilone)
** Changed in: nvidia-prime (Ubuntu Focal)
Status: Triaged => In Progress
** Changed in: nvidia-prime (Ubuntu Hirsute)
Status: Triaged => In Progress
** Changed in: nvidia-prime (Ubuntu)
Status: New => Invalid
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-prime in Ubuntu.
https://bugs.launchpad.net/bugs/1946434
Title:
SRU: Set on-demand as default, enable RTD3 only on laptops and
decouple on-demand with RTD3
Status in OEM Priority Project:
Confirmed
Status in nvidia-prime package in Ubuntu:
Invalid
Status in nvidia-prime source package in Focal:
In Progress
Status in nvidia-prime source package in Hirsute:
In Progress
Bug description:
[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 20.04.3 with "Third-party packages". 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]
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1946434/+subscriptions
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