Comment 20 for bug 665796

Same happening to me, I7 930. Happens a few minutes after I launch a video, regardless of whether I have it still open or already closed it. May last up to 5 minutes. The only thing I notice is that /var/log/messages get a psmouse.c message whenever the CPU starts spiking:

Nov 22 02:58:31 ansalon kernel: [235256.800265] psmouse.c: Wheel Mouse at isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.

However, I am guessing it is not a symptom but a consequence of the CPU spike issue. This issue is pretty depressing, I must launch the video, pause it and wait until the CPU starts spiking (which may be a few seconds or a few minutes after that), wait until it finishes, and then start watching the video.