I've begun to experience an issue where the Present Windows feature will hang/freeze, sometimes for more than a second when, I interact with windows in the grid. It doesn't seem to matter how many or few windows are displayed. If i move the cursor between windows, the animation is very choppy to the point of not updating the grid at all. It started to happen after my last system upgrade and could be due to Mesa 9.1. Reproducible: Always Steps to Reproduce: 1. Activate Present Windows by any means be it hotkey, moving cursor to top-left corner or through the icon-only task manager 2. Move the cursor between windows 3. Click on a window Actual Results: The animation hangs/freezes frequently during any interaction, sometimes for more than a second Expected Results: The animation should be smooth and clicking on windows should not cause a delay Graphics card: Intel Ivy Bridge integrated: HD4000 relevant Arch packages: mesa 9.1-2 (Just upgraded) intel-dri 9.1-2 xf86-video-intel 2.21.3-1 kde 4.10.0-1
Probably bug #313613 - try to set the scale method to "smooth" (kcmshell4 kwincompositing, 3rd tab) and report back.
Setting the scaling method to smooth did the job. Animation is now smooth again. Thanks! I gather from the other bug report that it is in fact a problem with Mesa 9.1?
Thanks for the report. Yes, at least the issue is exposed by Mesa 9.1 - we yet don't know what the precise issue is, though. *** This bug has been marked as a duplicate of bug 313613 ***