@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. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/779753 Title: T400 laptop. Freezes or mouse stutters. Kworker process using too much CPU. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
