Thank you for reporting this bug to Ubuntu. Ubuntu 12.04 (precise) reached end-of-life on April 28, 2017.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed. ** Changed in: xorg (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1674704 Title: blank screen after software update Status in xorg package in Ubuntu: Won't Fix Bug description: I ran "sudo apt-get upgrade" and after rebooting I started to have problems with the display. Now it's black even from the boot options screen (I mean before GRUB menu). I left the system go up end after connecting via ssh I could see the following in dmesg: [ 796.633789] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 797.133525] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(8). [ 797.133531] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 797.633326] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(9). [ 797.633331] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 798.133117] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(10). [ 798.133122] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 798.632897] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(11). [ 798.632903] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 799.132682] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(12). [ 799.132687] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 799.632462] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(13). [ 799.632467] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 800.132257] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(14). [ 800.132263] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 800.632060] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(15). [ 800.632065] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 801.131826] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(0). [ 801.131832] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 801.631619] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(1). [ 801.631624] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 802.131420] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(2). [ 802.131426] [drm:radeon_cs_ioctl] *ERROR* Failed to schedule IB ! [ 802.631209] [drm:radeon_ib_schedule] *ERROR* radeon: couldn't schedule IB(3). $ uname -a Linux ajax 3.2.0-124-generic #167-Ubuntu SMP Fri Mar 3 15:25:36 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux Any suggestion? Thanks in advance, Giuseppe ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu2 ProcVersionSignature: Ubuntu 3.2.0-124.167-generic 3.2.79 Uname: Linux 3.2.0-124-generic x86_64 ApportVersion: 2.0.1-0ubuntu17.15 Architecture: amd64 Date: Tue Mar 21 15:25:55 2017 InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423) MarkForUpload: True SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1674704/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
