I have the same issues on a Ati 9800Pro.
Clean installs from flight 5/6 and beta just gives a black screen with the default ati-driver.
Booting up into failsafe mode and doing 'apt-get install xorg-driver-fglrx' and then doing 'dpkg-reconfigure xserver-xorg' and switching to the fglrx driver solves this problem for me.
I did a clean install with hoary and dist-upgraded to breezy and then dist-upgraded again to breezy with having the fglrx driver installed was fully functional for me.
Here are some pastes comparing the ati-driver and fglrx driver in the logs.
I have the same issues on a Ati 9800Pro.
Clean installs from flight 5/6 and beta just gives a black screen with the default ati-driver.
Booting up into failsafe mode and doing 'apt-get install xorg-driver-fglrx' and then doing 'dpkg-reconfigure xserver-xorg' and switching to the fglrx driver solves this problem for me.
I did a clean install with hoary and dist-upgraded to breezy and then dist-upgraded again to breezy with having the fglrx driver installed was fully functional for me.
Here are some pastes comparing the ati-driver and fglrx driver in the logs.
FGLRX:http:// paste.ubuntu- nl.org/ 12680 paste.ubuntu- nl.org/ 12679
ATI-DRIVER:http://