This would be a kernel issue (not X.org/userspace). You would be much better off posting to something like dri-devel list or somewhere else that actually gets view from open-source radeon devs.
I have a system running Windows with a Radeon HD4550. I might try to tun a LiveUSB of 14.04 there to see if it boots correctly. ** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1321889 Title: Radeon 4550 can't boot without radeon.audio=0 since kernel 3.13 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1321889/+subscriptions _______________________________________________ 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
