Comment # 53 on bug 56139 from Alex Deucher

(In reply to comment #52)
> Also, nice to know: a suspend/resume cycle under Gnome-Shell or KDE will end
> up hung. However, a suspend/resume cycle under XFCE will work correctly.
> 
> In other words, the problem seems not to be with the memory controller, but
> with something that as to do with how the OpenGL/3D/else state is being
> restored.

Both use the 3D engine.  The 3D driver uses VM however, so it's probably a
duplicate of bug 60439.

*** This bug has been marked as a duplicate of bug 60439 ***