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[Hezekiah Carty <hez@xxxxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-ati

I am unable to enable multiple monitor support using a Dell Optiplex 780
desktop system with a Mobility Radeon HD 3470 with two monitors
connected by displayport using displayport -> DVI adapters under Ubuntu
10.04 64bit.  Once Ubuntu starts, the secondary monitor goes to sleep
while the primary monitor functions as expected.

I have not installed the fglrx driver and I have not tweaked any xorg
settings.

With the monitors set to clone in Gnome's monitor configuration, the
primary monitor is on and the secondary is in standby.  If I enable
multi-monitor support, then the secondary monitor will turn on and the
primary will turn off.

I expected/hoped that both monitors would work.  For verification, both
monitors do function properly under a dual-boot of Windows XP on the
same hardware.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xserver-xorg-video-radeon 1:6.13.0-1ubuntu5
ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-23-generic x86_64
Architecture: amd64
Date: Mon Jul 12 16:08:14 2010
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate amd64 (20100419.1)
MachineType: Dell Inc. OptiPlex 780
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-23-generic root=UUID=aebfd0c5-64f0-40ff-b8a4-7649063e1204 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: xserver-xorg-video-ati
dmi.bios.date: 09/01/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A01
dmi.board.name: 0C27VV
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA01:bd09/01/2009:svnDellInc.:pnOptiPlex780:pvr:rvnDellInc.:rn0C27VV:rvrA00:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 780
dmi.sys.vendor: Dell Inc.
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro:             Ubuntu
 codename:           lucid
 architecture:       x86_64
 kernel:             2.6.32-23-generic

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


** Tags: amd64 apport-bug lucid

-- 
Multiple monitors do not work on Mobility Radeon HD 3470
https://bugs.launchpad.net/bugs/604786
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