Debian Hardware :: ATI R7 Graphics Card - Open Source Radeon Or Fglrx Catalyst?

I've set up this new PC, the graphic card I picked is the ATI R7 260X, pretty good card with lots of core processors, high clock and 2GB memory. I'm now currently using the 14.4 catalyst drive, it works actually alright, though, there are some mishaps with this driver:

First my hdmi screen had scale down, leaving black borders around, even though the catalyst control said the correct native resolution, this turned out to be a underscan that fglrx does and I've finally managed to fix it. Other caveat is that the screen simply won't suspend or turn off( via software), DPMS actually works, forcing it turns the screen blank for some seconds but something does not allow the screen to sleep.

Performance wise it seems pretty good though, everything is pretty smooth, being able to play games maxed out on resolution and ultra settings, though, I still haven't tested out that many games.

The open-source radeon on the other hand, well its open-source, fully xorg and linux compatible, which is a major plus point. It seem it has come a long way, supporting lot of features and providing better performance in some cases.

Before installing Catalyst I had issues with mesa and steam, steam would complain about not finding the 32bit libraries, this is however a steam runtime issue, maybe it could already be fixed.