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[Bug 644359] [NEW] Dual head problem - can't use both monitors fully

 

Public bug reported:

Binary package hint: xorg

I have a laptop with external monitor and when I use System,
Preferences, Monitor to configure dual head mode with the desktop
extended across the two displays (with monitor to the right) with
resolutions 1280x800 on the laptop and 1280x1024 on the monitor (the
native resolutions) the desktop only extends half way across the
external monitor and only 3/4 of the height.  I believe it may be
clamping at total width 2048 and only using 800 of the available 1024 on
the external monitor.

To make matters worse, when I log out and back in I get only a reduced
width display on the laptop and nothing on the monitor.  I have to
revert to mirrored mode and start again to get the external monitor
back.

I have dual boot with 10.04 and when I boot into 10.04 the dual head
display works fine.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xorg 1:7.5+6ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
Architecture: i386
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800
 edid-base64: AP///////wAyDADIAAAAAAAQAQOAIRV4CrNwmVlTjScjUFQAAAABAQEBAQEBAQEBAQEBAQEBthwAuFAgJTAgKEQAS88QAAAZAAAAAAAAAAAAAAAAAAAAAAAAAAAA/gBMR1BoaWxpcHNMQ0QKAAAA/gBMUDE1NFcwMS1UTEU0ACo=
DRM.card0.VGA.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x1024 1280x1024 1152x864 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 720x400
 edid-base64: AP///////wBBDBHAgZQGACYPAQMfIht47h/1pFdHnSQTUFS/74CBgAEBAQEBAQEBAQEBAQEBMCoAmFEAKkAwcBMAUg4RAAAeAAAA/wAgQlogIDQzMTIzMwogAAAA/ABQaGlsaXBzIDE3MEMKAAAA/QA4TB5TDgAKICAgICAgAN8=
Date: Tue Sep 21 14:18:05 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta i386 (20100901.1)
MachineType: TOSHIBA Satellite A100
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=9f9b3aa1-6f6c-4c66-9d47-12c348c315af ro quiet splash
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: xorg
dmi.bios.date: 10/23/2006
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 2.10
dmi.board.name: MPAD-MSAE Customer Reference Boards
dmi.board.vendor: Intel Corporation
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr2.10:bd10/23/2006:svnTOSHIBA:pnSatelliteA100:pvrPSAA8E-17V049EN:rvnIntelCorporation:rnMPAD-MSAECustomerReferenceBoards:rvrNotApplicable:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: Satellite A100
dmi.product.version: PSAA8E-17V049EN
dmi.sys.vendor: TOSHIBA
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro:             Ubuntu
 codename:           maverick
 architecture:       i686
 kernel:             2.6.35-22-generic

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 maverick

-- 
Dual head problem - can't use both monitors fully
https://bugs.launchpad.net/bugs/644359
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