I have been using an ASRock A75 Extreme6 and I have found the same problem. As I am using this for a server the fix for me is to add the nomodeset or radeon.modeset=0 kernel option. You can do this from the grub menu just press "e". You could also blacklist the radeon module. This will stop the radeon module setting the mode incorrectly. If you need a graphical interface this work around will probably not work.
see https://bbs.archlinux.org/viewtopic.php?id=82052 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/897134 Title: server doenst boot with asrock a75m-hvs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/897134/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
