I also tried setting radeon.modeset=1 on the kernel command line but it did not seem to help. I am not sure I put this parameter in the correct place though.
I hit the shift key during boot to bring up the grub menu
selected 'e' to edit the boot menu entry
then appended the radeon.modeset=1 to the command line starting with linux
then ctrl-x to boot
I also tried setting radeon.modeset=1 on the kernel command line but it did not seem to help. I am not sure I put this parameter in the correct place though.
I hit the shift key during boot to bring up the grub menu
selected 'e' to edit the boot menu entry
then appended the radeon.modeset=1 to the command line starting with linux
then ctrl-x to boot