Public bug reported: Since the upgrade to Kubuntu 13.10 Xorg crashes during startup unless I deactivate Modesetting support in grub. I am using the free radeon driver (not the proprietary one).
The lspci output for the graphics card is: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Bonaire XT [Radeon HD 7790/8770] ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: xorg 1:7.7+1ubuntu6 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 ApportVersion: 2.12.5-0ubuntu2 Architecture: amd64 Date: Sat Oct 19 10:48:43 2013 InstallationDate: Installed on 2011-05-21 (881 days ago) InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427) MarkForUpload: True SourcePackage: xorg UpgradeStatus: Upgraded to saucy on 2013-10-17 (1 days ago) ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug saucy ** Attachment added: "Xorg logfile with crash backtrace" https://bugs.launchpad.net/bugs/1241973/+attachment/3883276/+files/Xorg.0.log -- 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/1241973 Title: Xorg server crashes during reboot when Modesetting is active on Radeon 7790 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1241973/+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