ubuntu-x-swat team mailing list archive

[dvhart <darren@xxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-ati

After the upgrade to Karmic from Jaunty, my Thinkpad Z60m can no longer
use the external monitor connected via VGA. When I plug in the monitor
and "Detect Monitors", the system detect 3 instead of 2. The laptop LVDS
display is always there, but when I connect the VGA monitor, xrandr (and
Display Preferences) detect the VGA monitor and a third display (DVI-0).
It didn't do this in Jaunty. For some reason this prevents me from using
the correct resolution on the external VGA display (1680x1050, the same
as the laptop LVDS).

xrandr output with nothing connected:
$ xrandr
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1680
VGA-0 disconnected (normal left inverted right x axis y axis)
DVI-0 disconnected (normal left inverted right x axis y axis)
LVDS connected 1680x1050+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
   1680x1050      60.1*+   50.1  
   1400x1050      60.0  
   1280x1024      59.9  
   1440x900       59.9  
   1280x960       59.9  
   1280x854       59.9  
   1280x800       59.8  
   1280x720       59.9  
   1152x768       59.8  
   1024x768       59.9  
   800x600        59.9  
   640x480        59.4  
S-video disconnected (normal left inverted right x axis y axis)

xrandr with the external display attached via VGA:
$ xrandr
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 1680 x 1680
VGA-0 connected (normal left inverted right x axis y axis)
   1360x768       59.8  
   1152x864       60.0  
   1024x768       60.0  
   800x600        60.3  
   640x480        59.9  
DVI-0 connected (normal left inverted right x axis y axis)
   1360x768       59.8  
   1152x864       60.0  
   1024x768       60.0  
   800x600        60.3  
   640x480        59.9  
LVDS connected 1680x1050+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
   1680x1050      60.1*+   50.1  
   1400x1050      60.0  
   1280x1024      59.9  
   1440x900       59.9  
   1280x960       59.9  
   1280x854       59.9  
   1280x800       59.8  
   1280x720       59.9  
   1152x768       59.8  
   1024x768       59.9  
   800x600        59.9  
   640x480        59.4  
S-video disconnected (normal left inverted right x axis y axis)

As you can see, it incorrectly detects a DVI-0 zero screen, and uses the
same modes (max of 1360x768) for that and the VGA-0 display which should
have 1680x1050 available.

I've tried using xrandr to only enable the VGA display, but have had no
success.

I've tried the following in xorg.conf without success:
Section "Device"
	Identifier	"Configured Video Device"
	Driver		"radeon"
	Option "MonitorLayout" "LVDS,CRT"
EndSection

Is there a known work around to this? Or is there a bug in the radeon
driver which is mis-detected a phantom display?

ProblemType: Bug
Architecture: i386
Date: Sat Jan  9 14:57:50 2010
DistroRelease: Ubuntu 9.10
MachineType: IBM 2529E8U
Package: xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: root=UUID=d3c4f978-8aa5-419e-a0e2-bc62dc4c790b ro quiet splash
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-16.53-386
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu10
 libgl1-mesa-glx 7.6.0-1ubuntu4
 libdrm2 2.4.14-1ubuntu1
 xserver-xorg-video-intel 2:2.9.0-1ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
SourcePackage: xserver-xorg-video-ati
Uname: Linux 2.6.31-16-386 i686
dmi.bios.date: 12/20/2005
dmi.bios.vendor: IBM
dmi.bios.version: 77ET54WW (1.14 )
dmi.board.name: 2529E8U
dmi.board.vendor: IBM
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: IBM
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnIBM:bvr77ET54WW(1.14):bd12/20/2005:svnIBM:pn2529E8U:pvrThinkPadZ60m:rvnIBM:rn2529E8U:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
dmi.product.name: 2529E8U
dmi.product.version: ThinkPad Z60m
dmi.sys.vendor: IBM
fglrx: Not loaded
system:
 distro:             Ubuntu
 architecture:       i686kernel:             2.6.31-16-386

** Affects: xserver-xorg-video-ati (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386

-- 
Radeon X300 detect too many screens
https://bugs.launchpad.net/bugs/505300
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