Public bug reported:
On my Thinkpad R61i with i915 graphics I often find that many adjacent
short horizontal rows of pixels get swapped with each other suddenly and
for no apparent reason (see screenshot). This can apparently happen in
any window.
In a possibly related incident, yesterday all my displayed text suddenly
turned to barely recognisable Klingon and I was forced to log out and
log back in again.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: xserver-xorg-video-intel 2:2.21.6-0ubuntu4.1
ProcVersionSignature: Ubuntu 3.8.0-30.22-lowlatency 3.8.13.6
Uname: Linux 3.8.0-30-lowlatency x86_64
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
Date: Mon Sep 9 11:33:39 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-08-22 (17 days ago)
InstallationMedia: Ubuntu-Studio 13.04 "Raring Ringtail" - Release amd64
(20130424)
MarkForUpload: True
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug raring
** Attachment added: "screenshot"
https://bugs.launchpad.net/bugs/1222730/+attachment/3810620/+files/Screenshot%20from%202013-09-09%2011%3A24%3A33.png
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which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1222730
Title:
adjacent short rows of pixels get swapped round
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