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[Launchpad Bug Tracker <570011@xxxxxxxxxxxxxxxxxx>]

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I have a Thinkpad T60. If I boot from the RC1 live CD, graphical
modesetting seems to work well if the external monitor is not connected
at boot time. If I then plug in the monitor, I can then switch to a new
resolution (1920x1080) from the old resolution (1400x1050). Switching
back and forth multiple times seems to work well, in the 10 minutes I've
been playing with the system.

However, if I boot with the monitor connected, then the resolution is
set to 1024x768 on both screens, and when I try to set the resolution to
something more useful, eventually the entire screen starts flickering
with weird horizontal lines on the laptop's monitor, and the external
monitor display wiggles around rapidly. The display is not usable under
such circumstances. External monitor: Dell S2409W

Apparent workaround: boot with monitor disconnected, and then after
logging in, connect the external monitor.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-21-generic 2.6.32-21.32
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  ubuntu     3084 F.... knotify4
                      ubuntu     3127 F.... kmix
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xee400000 irq 17'
   Mixer name	: 'Analog Devices AD1981'
   Components	: 'HDA:11d41981,17aa2025,00100200'
   Controls      : 20
   Simple ctrls  : 11
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 79HT43WW-1.02'
   Mixer name	: 'ThinkPad EC 79HT43WW-1.02'
   Components	: ''
   Controls      : 2
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
   Playback channels: Mono
   Limits: Playback 0 - 14
   Mono: Playback 14 [100%] [on]
Date: Sun Apr 25 22:11:40 2010
HotplugNewDevices:
 
HotplugNewMounts:
 
LiveMediaBuild: Kubuntu 10.04 "Lucid Lynx" - Release Candidate i386 (20100419.1)
MachineType: LENOVO 2623D7U
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/khostname.seed boot=casper initrd=/casper/initrd.lz quiet splash --
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
SourcePackage: linux
Symptom: storage
UdevMonitorLog:
 monitor will print the received events for:
 UDEV - the event which udev sends out after rule processing
UdisksMonitorLog: Monitoring activity from the disks daemon. Press Ctrl+C to cancel.
dmi.bios.date: 04/18/2006
dmi.bios.vendor: LENOVO
dmi.bios.version: 79ET60WW (1.05a)
dmi.board.name: 2623D7U
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:bvr79ET60WW(1.05a):bd04/18/2006:svnLENOVO:pn2623D7U:pvrThinkPadT60:rvnLENOVO:rn2623D7U:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2623D7U
dmi.product.version: ThinkPad T60
dmi.sys.vendor: LENOVO

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


** Tags: apport-bug i386 lucid needs-upstream-testing regression-proposed resume suspend
-- 
Modesetting fails if large screen monitor attached at boot
https://bugs.launchpad.net/bugs/570011
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