Created attachment 778016 [details] Screenshot Description of problem: After upgrading to xorg-x11-drv-intel-2.21.12-1.fc20.x86_64, I frequently notice small glyph corruptions (which though are very volatile, i.e. vanish as soon as the mouse hovers over them). Version-Release number of selected component (if applicable): xorg-x11-drv-intel-2.21.12-1.fc20.x86_64 How reproducible: Frequently Steps to Reproduce: 1. I notice this particularly often using firefox and thunderbird (under kwin) 2. 3. Actual results: See attached screenshot. Additional info: GPU is a GMA 4500MHD (Sorry for the not terribly detailed description, don't really have experience debugging graphics drivers. I'm happy to collect any additional information you may need.)
Looks like xorg-x11-drv-intel-2.21.14-1.fc20 fixed this.