debcrafters-packages team mailing list archive

[Daniel van Vugt <1971434@xxxxxxxxxxxxxxxxxx>]

The fix is non-trivial and conflated by being just one commit in a merge
of unrelated changes:

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4209/diffs?commit_id=313860e2fab15249337f70d0c298dd02b903c7b9

But if we gain more confidence that this fix in Mutter 48 is the only
fix most people need, then it could be backported to Mutter 46 for
Ubuntu 24.04.

** Changed in: gnome-settings-daemon (Ubuntu)
       Status: Fix Released => Invalid

** Tags added: desktop-needs-sru

** Tags added: fixed-in-mutter-48.0 fixed-upstream

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https://bugs.launchpad.net/bugs/1971434

Title:
  Display powersave only blanks, but does not turn off

Status in GNOME Settings Daemon:
  New
Status in Mutter:
  New
Status in gnome-settings-daemon package in Ubuntu:
  Invalid
Status in mutter package in Ubuntu:
  Fix Released

Bug description:
  [ Impact ]

  On some machines when the screen blanks, the LCD backlight stays on.

  [ Workarounds (reported to work by some people) ]

  * Configure the monitor (in its own menus) to not auto-switch inputs.
  * Change from HDMI to DisplayPort cables.
  * Disable HDMI audio output.

  [ Test Plan ]

  0. Make sure you're using an LCD (not OLED) so you can see if the backlight is on.
  1. In Settings -> Power -> Screen Blank, set the inactivity period to 1 minute.
  2. Verify after 1 minute that the screen is blank and the backlight is also visibly off.

  [ Where problems could occur ]

  [ Other Info ]

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