Public bug reported:
Binary package hint: xorg
I used the Lucid beta for a few weeks with no problems. Last Wednesday
(4/26), however, I did an upgrade, and when I rebooted there was a
serious problem with X. The symptom is that the screen only displays the
Lucid background image, but shifted up and to the side, and a big
corrupt-looking square where the mouse is. There is a photo attached
which displays this behavior. The mouse can be moved, and is tracked by
the square made of vertical lines, but that's all you get out of the
graphical display.
I was able at the time to ctrl+alt+f* to get to a terminal. There, I saw a lot
of output like this:
May 2 01:10:24 lucy kernel: [ 262.116824] [drm:radeon_ib_schedule] *ERROR*
radeon: couldn't schedule IB(7).
May 2 01:10:24 lucy kernel: [ 262.117408] [drm:radeon_cs_ioctl] *ERROR* Faild
to schedule IB !
May 2 01:10:24 lucy kernel: [ 262.120836] [drm:radeon_ib_schedule] *ERROR*
radeon: couldn't schedule IB(8).
May 2 01:10:24 lucy kernel: [ 262.121312] [drm:radeon_cs_ioctl] *ERROR* Faild
to schedule IB !
May 2 01:10:24 lucy kernel: [ 262.122706] [drm:radeon_ib_schedule] *ERROR*
radeon: couldn't schedule IB(9).
May 2 01:10:24 lucy kernel: [ 262.123198] [drm:radeon_cs_ioctl] *ERROR* Faild
to schedule IB !
May 2 01:10:24 lucy kernel: [ 262.127764] [drm:radeon_ib_schedule] *ERROR*
radeon: couldn't schedule IB(10).
(Except that this is copied from my syslog today. The errors are the
same, though.)
Suspecting some new Lucid weirdness, I tried disabling KMS on that
installation, and it didn't seem to help, but I may have none it wrong
or incompletely. I also tried updating again, no luck. So I waited until
the official release of Lucid, and did a fresh install to a formated "/"
(I kept /home, but since the system becomes unusable at the login
screen, I sort of doubt there's relevant cruft there).
I also could not get the live cd to work until I specified nomodeset in
the startup menu. Once I had a fresh installation, I saw the same
problem, but this time adding "options radeon modeset=0" to
/etc/modprobe.d/radeon-kms.conf restored usability.
Final fun fact: I can get to a terminal with ctrl+alt+f1 if I start up with
modeset enabled. But if I follow the wiki instructions for trying KMS and do "
sudo stop gdm
sudo modprobe -r radeon drm
sudo modprobe radeon modeset=1
sudo start gdm
" then I can't get back to a terminal, and have to do a hard reset.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+5ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
Architecture: i386
Date: Sun May 2 13:03:18 2010
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: LENOVO 2007C4U
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-21-generic
root=UUID=85ef3096-5f5d-4dee-8a16-49a9a7c15bd5 ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: xorg
dmi.bios.date: 06/12/2006
dmi.bios.vendor: LENOVO
dmi.bios.version: 79ET62WW (1.07 )
dmi.board.name: 2007C4U
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr79ET62WW(1.07):bd06/12/2006:svnLENOVO:pn2007C4U:pvrThinkPadT60:rvnLENOVO:rn2007C4U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2007C4U
dmi.product.version: ThinkPad T60
dmi.sys.vendor: LENOVO
system:
distro: Ubuntu
codename: lucid
architecture: i686
kernel: 2.6.32-21-generic
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
--
KMS & radeon in Lucid renders X unusable, but only since about April 26
https://bugs.launchpad.net/bugs/573983
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