Had similar problems with the RV410 AGP card. Passing the parameter via grub command line did not work but for me this worked:
echo "options radeon agpmode=1" >> /etc/modprobe.d/radeon.conf update-initramfs -u the last one is necessary to get the option into the initramfs-image. Of cource you can try agpmode=1,2,3.... here as well. -- [RV410] Screen gets unreadable https://bugs.launchpad.net/bugs/559189 You received this bug notification because you are a member of Ubuntu-X, which is the registrant for xserver-xorg-driver-ati. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp