Ubuntu
xserver-xorg-video-ati package

  1. Bug #419126
  2. Comment #77

Comment 77 for bug 419126

Revision history for this message
Ranferi Meza (remiksaskani) wrote : Re: X fails to start up after mesa+git update - gdm loops after logging in

As far as I know, the Radeon HD 3000 is based on the R600 chip, ergo, it requires the R600 microcode to work properly. My question for you is: have you been using this chip with KMS or without. If you have, try issuing "nomodeset" to kernel at boot just to make sure it is not a problem related to the experimental R600 code in radeon-drm.
My GPU is a RS480 (Radeon Xpress 1100), and it worked 100%, but it is based in the R300 microcode, and apparently only R200 - R500 chips are fully supported with xserver-sorg-video-ati.
My guess: you need the radeonhd driver, wnich is a work in progress. Check all this, please.