# suggestion:
On nvidia settings UI, there's no message saying it's building initrd after 
user select on-demand mode. So, the nvidia settings looks like just hangs up 
when it's building initrd.

If user have multiple kernel before selecting on-demand, user might be
confused and treat it as nvidia settings UI hangs up then force close it
or reboot machine.

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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/1915003

Title:
  SRU: Always update the initramfs when changing power profile

Status in NVIDIA Drivers Ubuntu:
  New
Status in OEM Priority Project:
  Triaged
Status in nvidia-prime package in Ubuntu:
  Fix Released
Status in nvidia-settings package in Ubuntu:
  Fix Released
Status in nvidia-prime source package in Bionic:
  Fix Committed
Status in nvidia-settings source package in Bionic:
  Fix Committed
Status in nvidia-prime source package in Focal:
  Fix Committed
Status in nvidia-settings source package in Focal:
  Fix Committed
Status in nvidia-prime source package in Groovy:
  Fix Committed
Status in nvidia-settings source package in Groovy:
  Fix Committed

Bug description:
  Since we introduced support for dynamic power management, on systems
  with hybrid graphics (LP: #1904583), the need to load drivers with
  different options has become more evident.

  We need to make sure that the files in the initramfs are in sync with
  the current user selection.

  This is also a chance to update the old nvidia-settings release in the
  archive.

  
  [Impact]

  * If the modules list is not in sync with the selected power profile,
  users may experience a black screen or increased power consumption.

  * Updating the initramfs can take a few seconds, and we need to
  provide users with some form of visual feedback.

  [Fix]

  * The prime-select tool shoud update the initramfs when switching
  between power profiles, and provide visual feedback.

  * The nvidia-settings panel should provide a progress dialog, since
  profile switching would otherwise freeze the UI until update-initramfs
  completes.

  [Test Case]

  Make sure a supported nvidia driver is installed (450, 460), then
  install nvidia-prime and nvidia-settings from proposed, and check the
  following:

  1) prime-select query (to check your current profile)

  2) sudo prime-select on-demand (or "intel", or "nvidia", depending on
  your current power profile)

  3) Check that the operation completes successfully.

  4) Reboot your system

  5) Launch the nvidia-setting panel.

  6) Select a different profile from the PRIME tab, and check that a
  progress dialog is correctly displayed.

  7) Close the nvidia-settings panel, and reboot.

  
  [Regression Risk]
  Medium, while the changes in prime-select are trivial, nvidia-settings needs 
careful testing.

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