desktop-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Jani Uusitalo, thank you for reporting this and helping make Ubuntu
better. Could you please run the following command from a terminal as it
will automatically gather and attach updated debug information to this
report:

apport-collect -p xorg 1345573

Please ensure you have xdiagnose installed, and that you click the Yes
button for attaching additional debugging information.

** Package changed: xorg-lts-trusty (Ubuntu) => xorg (Ubuntu)

** Changed in: xorg (Ubuntu)
   Importance: Undecided => Low

** Changed in: xorg (Ubuntu)
       Status: New => Incomplete

-- 
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https://bugs.launchpad.net/bugs/1345573

Title:
  Horizontal lines flashing on screen briefly

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  Since upgrading HWE from -lts-saucy to -lts-trusty, I have had
  recurring graphical glitches on screen, with short black horizontal
  lines appearing briefly on screen (on top of normal contents),
  particularly when switching between applications. The lines appear
  only for a few 100 ms before going away (just enough to register in
  your eye that there's something there), so I've been trying to make a
  screen recording to capture it, but of course the phenomenon goes away
  when I do (perhaps RecordMyDesktop does something with the screen that
  makes it less likely to appear).

  I have another 12.04 system with desktop Radeon graphics, and there
  -lts-trusty has not produced this issue so far (the one with the issue
  and the one I'm attaching the logs here from has Intel).

  I don't recall seeing this with -lts-saucy or other previous Xorg
  packages. It was so obvious right after upgrading that either it never
  occurred before or was so rare or quick to flash away that it didn't
  register.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: xserver-xorg-lts-trusty 1:7.7+1ubuntu8~precise1
  ProcVersionSignature: Ubuntu 3.13.0-32.57~precise1-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  CheckboxSubmission: 09ae689090491ca53449589269e4bfd8
  CheckboxSystem: edda5d4f616ca792bf437989cb597002
  Date: Sun Jul 20 15:21:12 2014
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
  MarkForUpload: True
  SourcePackage: xorg-lts-trusty
  UpgradeStatus: Upgraded to precise on 2014-07-11 (9 days ago)

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