Comment 4 for bug 147363

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Albert Gasset (albertgasset) wrote :

Playing a little with the visual effects settings, I've founde that this only happens when visual effects are enabled. With visual effects enabled, unchecking "General Options -> Display Settings -> Detect Outputs" in "Advanced Desktop Effects Settings" solves the problem.

This two bugs refer to the same problem:
https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/130933
https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/137818