Furkan, to see if this is already resolved, could you please test
http://cdimage.ubuntu.com/daily-live/current/ and advise to the results?
** Tags added: latest-bios-f12
** No longer affects: xserver-xorg-video-ati (Ubuntu)
** Project changed: xserver-xorg-driver-ati => xserver-xorg-driver-ati
The new radeon TearFree feature fixes this problem for me:
http://lists.x.org/archives/xorg-driver-ati/2015-April/027345.html
It's still under revision, so it hasn't yet been committed to the xf86
-video-ati repository, but can be found here:
http://cgit.freedesktop.org/~daenzer/xf86-video-ati/
Again, for the record: I was able to reproduce this bug w/ Fedora 22
Alpha (4.0 kernel, XOrg 1.17, Gnome 3). It isn't as obvious as it is in
Unity, but it's there. Here is a 10-second video of repeatedly
maximizing and restoring a window, where you can see the checkerboarding
along the top of the
Does it happen with just one monitor?
** Changed in: xorg (Ubuntu)
Status: New = Incomplete
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https://bugs.launchpad.net/bugs/1440602
Title:
Graphics corruption
For the record (as we discussed on IRC): After testing, I can confirm
that these bugs only occur in a dual-monitor setup where 1 monitor is in
portrait mode.
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moving to the ati driver, so it's not lost in noise
** Package changed: xorg (Ubuntu) = xserver-xorg-video-ati (Ubuntu)
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: Incomplete = Confirmed
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Just some further testing: The checkerboarding doesn't occur when the
screens are aligned at the top (in other words, when y=0 for both
monitors in .config/monitors.xml)
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