So with RC4. I have one success and one failure. Works: 01:00.0 VGA compatible controller: ATI Technologies Inc RV730 PRO [Radeon HD 4650] Fails: 01:00.0 VGA compatible controller: ATI Technologies Inc RV730XT [Radeon HD 4670] I've also got one more to test against later today 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon 2100 -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel