The new legacy driver does not support xserver 1.13.
Entropy and Rigaldo seem to be correct, the driver does not work with X.org 13.1, at least as far as I can tell. This was basically a rush-fix to make Team Fortress 2 (and perhaps others? not sure) work as it threw an error with 12.6. AMD is really shooting themselves in the foot with this, right as Valve pushes Linux towards being viable for gaming. Leaving a really sour taste and definitely making me second-guess buying another AMD card when I build my new rig, and judging by the reactions across various forums, I'm not the only one.
Well basically it does what it should when you use Ubuntu LTS. Most likely you can use it on Kanotix Dragonfire as well soon when i finished my tests. Kanotix Dragonfire supports Steam unofficially as well...
BUT still we have a lot of problems, in my case, i can't use cairo-dock in mi amd machine because it freeze the PC (with an very old intel laptop it work very flawlessly), the video acceleration, blender clycles+amd...
But while we probably won't get that, this release was definitely important. I had a friend trying to sell a HD 4850, which is miles ahead of my current nvidia (that on the other hand is still supported) and I said "thanks, but no thanks". With this release, I'm definitely tempted to see how performance compares between the two.
Makes sense. I wouldn't be at all surprised to hear "yes that was the most important thing but we want more". What surprised me was the implication that we had picked the wrong thing to prioritize.
We are continuing to work on improving the support for older hardware via the open source drivers, but it seemed to me that getting Steam/Valve fixes out was the most useful thing for the legacy Catalyst driver, particularly for owners of IGP-based systems (rs780/880) where performance is "only just" fast enough even with the Catalyst driver.
Got it working on my system. Had to re-do my system back to 12.04 LTS then kept looking at the error log to see what was coming back as missing. I eventually got all the required packages installed and created the Ubuntu installer.
Now TF2 is working, not that I'm a fan but was nice to see it work fairly well, I hope this means L4D2 will also work well once it is released.