Created attachment 118913 [details] Xorg.0.log Thinkpad X230 Kernel: 4.2.3-1-ARCH Distribution: Arch Linux Package version: xf86-video-intel 1:2.99.917+478+gdf72bc5-2 There is a lag when using keyboard and mouse on QT based applications (e.g. Skype, VirtualBox) but not in the rest of the system. The lag is "solved" when using UXA acceleration - http://whitecape.org/stuff/30-uxa.conf
Based on previous investigations, my immediate suspicion is that the Qt applications are effectively running unthrottled and build up a long render queue. Looking at intel-gpu-top or even intel-gpu-overlay should show the GPU maxed out (or nearly), and netstat --unix should (if I am right about the backlog being large enough) show pending bytes from the client to X.
Hi, How can I produce a log of the GPU usage so i can attach it to the bug report? Thanks for the support
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