Hi Malcolm,

SUSE works now fine on HP Radeon Card
Mint (wish of my daugther and a nice Distro) had same issues as SUSE with Radeon Card. I found a solution by removing som driver - and it worked.

Michael from SUSE supported me regarding SLES

echo "backlist nouveau" >> /etc/modprobe.d/99-local.conf
depmod -a

So far this seems to work.
I'm glad.