On 05/14/2015 08:36 AM, László Csontos wrote: > Hi Guys, > > I'm facing this issue: https://bugs.centos.org/view.php?id=8482 > > It came after upgrading to 7.1 and only Firefox is affected, Chrome is > working. > > What I've tried so far: > > - Tried NVIDIA drivers 340.65, 346.59 and 346.72 > - Upgraded Firefox to 38 > - Tried Safe more / Refresh Firefox > - Tried to turn HW accel. off in Firefox > > None of these has helped to eliminate the issue. > > Do you know how to work this around? > > Many thanks, > László It sounds like you are experiencing this problem https://bugzilla.gnome.org/show_bug.cgi?id=724788 The fix is a two line patch that is released against clutter 1.16, but it applies cleanly against 1.14 (which is in CentOS 7, maybe this gets fixed with the upcoming Gnome rebase). I rebuilt the clutter rpms with the patch and the flickering problem went away. -Thomas