Comment 17 for bug 779753

@chen wei I beleive our issues are in fact addressed by #746084 (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/746084).

@all it would be great if more people affected by this could provide perf records (sudo perf record -ag sleep 10) to determine the source; this issue might indeed be a duplicate.

Perhaps this is an issue with drm? It's a rather long shot but I'll try building the libdrm from source (http://intellinuxgraphics.org/download.html) and see if this helps. Will report back with results.