My symptoms here do not look like bug #1044552 but may, or may not, be
related to bug #104221.
However moving windows around is not what causes most screen corruption
(unless Windows moves and touch the launchbar, then the background isn't
repainted properly).
My symtoms are :
1- Screen
You could try the workaround:
sudo add-apt-repository ppa:unity-team/staging
If it helps, it is a good change that at least this bug and bug #1042211
has the same solution.
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*** This bug is a duplicate of bug 1042211 ***
https://bugs.launchpad.net/bugs/1042211
Installing updates from ppa:unity-team/staging solved my issue, thanks !
Marking this bug as a duplicate of bug #1042211...
** This bug has been marked a duplicate of bug 1042211
[quantal] [regression]
Please try to get a screenshot of the problem and upload. I saw
something similar in bug #1044552.
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https://bugs.launchpad.net/bugs/1043171
Title:
[Quantal] [Regression] corrupt X11
Possible a duplicate of bug #1042211.
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https://bugs.launchpad.net/bugs/1043171
Title:
[Quantal] [Regression] corrupt X11 background (white) on Intel
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** Tags added: corruption
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https://bugs.launchpad.net/bugs/1043171
Title:
[Quantal] [Regression] corrupt X11 background (white) on Intel
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https://bugs.launchpad.net/bugs/1043171
Title:
[Quantal] [Regression] corrupt X11 background (white) on Intel
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New = Confirmed
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