https://bugs.freedesktop.org/show_bug.cgi?id=30329
Summary: [r600c/evergreen] KWin Present Windows effect extremely slow and has graphical glitches Product: Mesa Version: git Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: major Priority: medium Component: Drivers/DRI/R600 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: jlp.bugs@gmail.com
I've just tried the opensource Mesa driver on this eMachines E640G laptop with integrated ATI Mobility Radeon HD 5470. I'm using Linux kernel 2.6.36 RC5. The problem is, that desktop effects in KDE Kwin 4.5.1 work quite OK (a bit slow) but one effect is extremely slow: the Present Windows onw. When I trigger it, it takes about two minutes until all open windows on the current desktop are shrinked so they are simulatinusly shown. This was with only two Konqueror windows open. After the windows were shrinked there was also a problem that they had a lot of red dots all over them.