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Description of problem: Sandy Bridge fun continues. I updated to xorg-x11-drv-intel-2.14.0-5.fc15 and started seeing a couple of problems when the KWin Translucency effect is enabled: 1. When dragging windows rapidly around, I see "artifacts" left on the background. 2. GPU hangs accompanied by momentary "black screens" when the KDE Notification applet tries to display a message (every time Firefox finishes downloading a file, for example). Downgrading back to xorg-x11-drv-intel-2.14.0-4.fc15.x86_64 makes these problems go away. Version-Release number of selected component (if applicable): xorg-x11-drv-intel-2.14.0-5.fc15.x86_64 How reproducible: 100% Steps to Reproduce: 1. Fully updated Fedora 15 (including updates-testing). 2. Log in to KDE. 3. Enable KDE desktop effects. 4. Ensure "Translucency" effect is enabled in "All Effects" tab. 5. Download file with Firefox. Actual results: When file download finishes, Firefox will try to display message via KDE Notifications applet. Screens will "flash" black and GPU hang messages will appear in syslog. Expected results: No GPU hangs/black screens. Additional info: Why do I have the feeling I'm the only person in the world trying to use KDE with Sandy Bridge graphics on Fedora 15?
It seems that intel-2.14.0-backports.patch is made up of several separate git commits. I'd be happy to test them individually to see which one is causing my problem, but I can't find any of them in the freedesktop.org git tree. My git-fu is weak, so I may be doing something wrong. Where/how can I find these individual commits?
I have no idea what is going on, but I can no longer reproduce this. (Possibly one of my many reboots fixed it.) Closing for now.