I'm facing the same issue, also on a T400. perf.data are attached. I'm not sure what's starting the problem. Once it started a few minutes after system start, and I had only been using Firefox. In every case it's seems to be related to I2C. Does a laptop have an I2C bus anyway ?
@olaf can you still confirm that compiling the newest source of drm is a usable workaround ? I'm not to fond of having a lot of software, not handled by the package management. ** Attachment added: "perf.data" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/779753/+attachment/2155764/+files/perf.data -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
