System crashes or auto-reboots only when more than 1 monitor is enabled.
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xorg (Ubuntu) |
Expired
|
Low
|
Unassigned |
Bug Description
UPDATE: Read submitter's latest post first.
After the upgrade, the computer crashed at the login screen where it froze. I could not switch to a VT, login via SSH, or safer reboot via the magic keys: RESIUB.
Anyway - after a hard reboot, I noticed the graphics setup had changed. It was obvious because of the way the 22" handles resolutions or signals it doesn't like. It's cloning the only resolution it has made available: 1280x1024.
At some point after upgrade to 14.04 and before my second attempt to run Xorg, the original xorg.conf file was renamed (and not replaced) with the date added on the end. I replaced it with the original xorg and eventually tired different things to fix it by commenting certain lines.
The second run of Xorg: The graphic output looked the same with cloned 1280x1024. I noticed that even though I restored my xorg.conf file, it proceeded to unload radeon driver and then load and use FBDEV with LLVM pipe. Yay? Nope, I use folding@home so the CPU cores are too busy for OpenGL. Having and not having xorg.conf present seems to not have an effect on the resutlts. :(
The output of xrandr is:
<QUOTE>
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1280 x 1024, current 1280 x 1024, maximum 1280 x 1024
default connected 1280x1024+0+0 0mm x 0mm
1280x1024 77.0*
</QUOTE>
I see no obvious reason from the log files why radeon was unloaded and not used for this card which is on the supported list still. Any ideas?
Thanks much.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xserver-
ProcVersionSign
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Apr 19 13:53:09 2014
SourcePackage: xserver-
UpgradeStatus: Upgraded to trusty on 2014-04-19 (0 days ago)
description: | updated |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
summary: |
- "radeon" driver no longer detects video card (RV770) w/ ubuntu 14.04 + System crashes only when more than 1 monitor is enabled. |
summary: |
- System crashes only when more than 1 monitor is enabled. + System crashes or auto-reboots only when more than 1 monitor is enabled. |
Update:
I disconnected one of the monitors (the 17" 1280x1024) and now the radeon driver is driving the display.
It's running fullscreen at max resolution but Xorg will fall back to fbdev if I plug the monitor back in and restart Xorg.