As much as Linus might not like it, the nVidia closed source drivers are the only Linux display drivers that are production ready for high performance 3D gaming.

I'd say that there have been some major improvements to driver support in the last year. There are two drivers for ATI gpu's out there, the open source driver and the catalyst driver that comes from ATI. The open source driver has been stable for quite some time, but the performance was lacking. The Catalyst drivers have recently been shown a little love that they desperately needed, and there was a kernel patch sometime around v3.8 that fixed a problem with Radeon and KMS conflicts.

Try again, I'm using my HP Minilaptop with AMD components on (X)ubuntu or Linux Mint, 32 inch samsung is detected better in Linux then it is in Windows. (automatically runs it Full HD compared to Windows' 1366x768 )

Cool, could you hint me which version(s) of (x)ubuntu and mint are working out for you? I couldn't get passed the Mint login screen after installation. Couldn't drop to tty either. System froze over :( I'm now on ubuntu 12.04 which seems better, but still.. HDMI/dual monitor is bugging me out.

Kubuntu 13.10 (or the latest Chakra if you don't like *buntu) should work, and solve your HDMI pain.

thanks!!

This seems to be where Valve is really trying to push - I've seen quite a few quotes from Newell saying their first step is to use their massive leverage to get graphics cards makers to improve their Linux drivers.

There have been rather fast Open drivers for the HD3650 for at least two years now. I'm curious as to what distribution you're using that would exhibit these sorts of problems in 2013.