[Bug 89233] Very slow Xorg performace when drawing Qt5's QPainter

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Apr 22 17:21:38 PDT 2015


--- Comment #7 from Michel Dänzer <michel at daenzer.net> ---
(In reply to madcatx from comment #6)
> Enabling ShadowPrimary results in some image tearing and slightly lower system
> load, I suppose that's all down to the system not waiting for a pageflip.

With current Git, Option "TearFree" should eliminate tearing. The lower system
load should be Option "ShadowPrimary" working as intended. :)

> I'll check that the problem is indeed fixed once Fedora 22 hits final next
> month but it's looking good so far.

Sounds good, thanks.

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