Hi, i'm new here since i switched to Linux about 3 weeks ago.
Guess how i found this forum? I was looking for some answers on google because i couldn't believe ATI acts so bad under Linux environtment - major dissapointment.
From what i've read here looks like ATI drives are improving - that still gives me hope, because just yesterday i stated that i wont buy anything from this company from now on.
I bought my 9600XT quite some time ago and didn't have any issues with it under windows for a very long time. Lately windows drivers were going downhill, but that's ok, i decided to dump windows. When i first launched Doom3 under Linux i was terrified, i'm noob so i thought this is my fault, but no, that would be too good.
To make long story short: under windows i played Doom3 with default High Quality setting - it was great, 45FPS in timedemo, almost flawless in-game.
Right now D3 runs at half the speed on lowest settings - quite a big difference, don't you think?
This is completely unacceptable and right now i'm feeling cheated. Everywhere i looked for a good gfx card for Linux i saw: nVidia, always nVidia.
It pains me because i'm a D3 mapper and that means i will have to switch to XP on regular basis (yes, i run dual system - you can't blame me for being cautious

) and i really, really hate to do that. My goal is to eliminate the need for windows completely in time and ATI doesn't help me to achieve this goal.
To sum it up: i'm dissapointed and i feel bitter towards ATI, but since there's a slight chance of improvement i will hold my hopes for a bit longer before going back to nVidia.