https://bugzilla.kernel.org/show_bug.cgi?id=68111
--- Comment #2 from CameronPoe cameronpoe@poczta.fm --- Basically every time my laptop goes into suspend it cannot wake-up later (I think it actually does but the screen is black) and when it goes into hibernation it freezes after few seconds.
I had the exact same problem on my previous HP Compaq Presario V5245EU laptop and you fixed it before by adding add s/r quirk to drivers/gpu/drm/radeon/radeon_combios.c https://bugzilla.kernel.org/show_bug.cgi?id=41642
When I installed fglrx driver the suspend and hibernation they work perfectly, but with this fglrx driver playing videos and scrolling websites is terrible so I went back to radeon driver.
Unfortunately it seems I cannot compile linux kernel properly to check if extra "return;" line before "/* DYN CLK 1 */" will do the trick (I think it would). I tried to compile kernel 3.12.6 but because I didn't change anything in configuration menu (which I'm not good with) the system failed of booting. I gave it a second try with kernel 3.11.10 and the system started this time and it waked-up properly after going into suspend but when I checked, the loaded driver was vesa, not the radeon.