Comment 17 for bug 1158562

I think this problem is caused by dual graphics configuration – most likely of different types.
I reported the bug for a A6-3650 in combination with an Nvidia FX6200
The same issue was present on my system up to kernel 3.5.0-17 when it disappeared and now reappeared with 3.5.0-27.46.
Also I noticed that with kernel 3.5.0-27.47 issue occurs every second boot.

Hope this helps someone to fix this bug once and forever