Comment 3 for bug 421736

(In reply to comment #2)
> Unfortunately it doesn't seem to be.
>

It is rather interesting, though, that the GPU only freezes when the 3d unit is used (i.e. task switching in compiz). When the machine comes up from suspend I can interact with the gnome-screensaver unlock window effectively indefinitely. However, when I unlock the session and attempt to interact with compiz, the chip quickly locks up. Additionally, for the short duration when compiz does draw (the first few seconds after unlocking), alpha blending appears to be broken, drawing all alpha blended regions as fully transparent.