On my Ubuntu 15.04 over a MacBook Pro 8.2, this error appears trying to make Radeon GPU working. This machine, actually, works only with Intel graphics and with the Radeon disable by this trick in the grub: outb 0x728 1 outb 0x710 2 outb 0x740 2 outb 0x750 0 #this disable discrete Radeon gpu graphics
Unable to work with Radeon only or with Hybrid graphics. Also with nomodeset the system boot into a black screen. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1338492 Title: Xorg crashed with SIGABRT in OsAbort() To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1338492/+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
