desktop-packages team mailing list archive

[Shih-Yuan Lee <1489696@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Running with the proprietary nvidia drivers in an optimus config works,
but enabling reflection or rotation on the intel screen causes a black
screen to appear.

[Impact]
 * Causes a black screen if rotation or reflection is enabled.

[Test Case]
 * Run xrandr --output SOMEOUTPUT --rotation left
    - Expected: Screen should rotate, or the call should fail.
    - Bad behavior: Succeeds, but causes a black screen.

[Regression Potential]
 * The affected codepaths have reflection and rotation disabled for gpu screens. Another fix could be fixing reflection/rotation, but that will be more involved and likely require driver fixes.

[Other Info]
 * This issue is copied from https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1308515 for vivid and wily.

** Affects: xorg-server (Ubuntu)
     Importance: Undecided
     Assignee: Timo Aaltonen (tjaalton)
         Status: In Progress

** Affects: xorg-server-lts-vivid (Ubuntu)
     Importance: Undecided
         Status: Invalid

** Affects: xorg-server (Ubuntu Vivid)
     Importance: Undecided
         Status: New

** Affects: xorg-server-lts-vivid (Ubuntu Vivid)
     Importance: Undecided
         Status: New


** Tags: blocks-hwcert-enablement vivid wily

** Tags added: vivid wily

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https://bugs.launchpad.net/bugs/1489696

Title:
  black screen when enabling rotation on a gpu screen

Status in xorg-server package in Ubuntu:
  In Progress
Status in xorg-server-lts-vivid package in Ubuntu:
  Invalid
Status in xorg-server source package in Vivid:
  New
Status in xorg-server-lts-vivid source package in Vivid:
  New

Bug description:
  Running with the proprietary nvidia drivers in an optimus config
  works, but enabling reflection or rotation on the intel screen causes
  a black screen to appear.

  [Impact]
   * Causes a black screen if rotation or reflection is enabled.

  [Test Case]
   * Run xrandr --output SOMEOUTPUT --rotation left
      - Expected: Screen should rotate, or the call should fail.
      - Bad behavior: Succeeds, but causes a black screen.

  [Regression Potential]
   * The affected codepaths have reflection and rotation disabled for gpu screens. Another fix could be fixing reflection/rotation, but that will be more involved and likely require driver fixes.

  [Other Info]
   * This issue is copied from https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1308515 for vivid and wily.

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