Comment 2 for bug 925957

Hmm, actually X is finding your card just fine:

 Advanced Micro Devices [AMD] nee ATI RS690M [Radeon X1200 Series] [1002:791f] (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:01fd]

xrandr.txt indicates it's finding your display outputs okay, and has identified a full range of resolutions, and has found a preferred resolution and set it.

It also properly identified your monitor manufacturer:
[ 112.336] (II) RADEON(0): Manufacturer: LPL Model: 0 Serial#: 0

However it did not figure out the model or name of the monitor. Indeed, there is just garbage here:

[ 112.336] (II) RADEON(0): v_active: 900 v_sync: 901 v_sync_end 904 v_blanking: 912 v_border: 0
[ 112.336] (II) RADEON(0): UM606171WX2
[ 112.336] (II) RADEON(0): '8CKj‘Äÿ
[ 112.336] (II) RADEON(0): EDID (in hex):

This is what it should look like (well, how it looks for me):

[ 5.733] (II) RADEON(0): v_active: 350 v_sync: 387 v_sync_end 389 v_blanking: 449 v_border: 0
[ 5.733] (II) RADEON(0): Ranges: V min: 56 V max: 76 Hz, H min: 30 H max: 83 kHz, PixClock max 175 MHz
[ 5.733] (II) RADEON(0): Monitor name: BenQ 241W
[ 5.733] (II) RADEON(0): EDID (in hex):

That's probably why you see the display shown as 'Unknown'.

So, I think when you say "wrong graphic card drivers" what you really mean is "Wrongly identified monitor". If that's incorrect please explain further.