Ubuntu
xserver-xorg-video-ati package

  1. Bug #325394
  2. Comment #14

Comment 14 for bug 325394

Revision history for this message
Bryce Harrington (bryce) wrote : Re: ATI Radeon HD 4850 not supported

I've ordered a 4850 and will troubleshoot this more directly once it arrives (probably next week).

Meanwhile, maybe see if you have an Xorg.0.log.old with details about your boot attempt.