Comment 3 for bug 1395182

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In , Jeff Cook (jeff-h) wrote :

Created attachment 109827
screenshot of tearing effect

When xrandr -o inverted is run, the resulting image is split down the middle. This happens 95% of the time; it has worked once or twice without tearing. Rotation can be activated through unity-control-center Display Settings rotation field, and that reliably works fine. When xrandr -o normal is run, the display returns to normal (although bug #1376760 is observed). xrandr -o right and xrandr -o left also reliably work without issue; this only occurs on xrandr -o inverted. The same behaviors are observed with the longer form of the command xrandr --output eDP1 --rotation inverted, etc.

This has also been reported at https://github.com/pfps/yoga-laptop/issues/28, which uses xrandr commands to invert the display.

See also Launchpad: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1395182

lspci:

00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])

Screenshot attached.