[Bug 44121] Reproducible GPU lockup CP stall on Radeon HD 6450

https://bugzilla.kernel.org/show_bug.cgi?id=44121

--- Comment #13 from Jean Delvare khali@linux-fr.org 2012-07-05 07:30:03 --- Reproducibility information:

* I cannot reproduce the GPU lockup on a Radeon HD 4350 card.

* On the Radeon HD 6450, I can reproduce the GPU lockup with applications other than Firefox. I was able to do so with Claws Mail for example. The parent window has to be maximized for it to happen. Then, as soon as a title-less dialog box is opened (for example by pressing Ctrl+S for "Save As..."), the GPU lockup happens.