Public bug reported:
*** This is _NOT_ a Nvidia related problem, I am not using the Nvidia
with this Ubuntu setup. ***
I am running Ubuntu 11.04 in a Dell XPS Laptop wich comes both with a
Nvidia and an integrated Intel AGP.
I am using an external monitor connected through a mini DisplayPort
wired to the Integrated Intel card.
It has been working since I installed Ubuntu 11.04 a month a go, today
the external monitor stopped responding:
- The external monitor reports no sync.
- System > Preferences > Monitors reports the external monitor as attached and
operational.
- Print Screen includes the image of the external monitor.
- The laptop primary monitor works as expected.
After double checking the cables, connections and the external monitor I
booted back in the previous Kernel (I suppose yesterday I got an kernel
update, but not really sure) and the external monitor came back to life.
I did the test forth an back a couple times and the behavior was
consistent wverytime I switched Kernels.
The offending Kernel is 2.6.38-11-generic.
Last known good Kernel is 2.6.38-10-generic.
So far I am sticking to the 2.6.38-10-generic Kernel while using an
external monitor attached to my laptop.
Following are my graphics device info:
anibal@collar-de-bolas:~ $ lspci | grep -i VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: nVidia Corporation Device 0df4 (rev a1)
anibal@collar-de-bolas:~ $ sudo lshw -C video
[sudo] password for anibal:
*-display
description: VGA compatible controller
product: nVidia Corporation
vendor: nVidia Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
configuration: driver=nouveau latency=0
resources: irq:16 memory:f0000000-f0ffffff memory:c0000000-cfffffff
memory:d0000000-d1ffffff ioport:3000(size=12 memory:f1000000-f107ffff
*-display
description: VGA compatible controller
product: 2nd Generation Core Processor Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:54 memory:f1400000-f17fffff memory:e0000000-efffffff
ioport:4000(size=64)
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-11-generic 2.6.38-11.48
ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC665 Analog [ALC665 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: anibal 3394 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf1c00000 irq 55'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:10ec0665,1028050e,00100003
HDA:80862805,80860101,00100000'
Controls : 26
Simple ctrls : 12
Date: Wed Aug 31 10:51:54 2011
HibernationDevice: RESUME=UUID=04c05399-bfb5-4045-a757-786ee21c7d64
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: Dell Inc. Dell System XPS L502X
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic
root=UUID=b014e346-4401-48e7-bfaf-d697fb02489a ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-11-generic N/A
linux-backports-modules-2.6.38-11-generic N/A
linux-firmware 1.52
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/20/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0NJT03
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnDellInc.:bvrA06:bd07/20/2011:svnDellInc.:pnDellSystemXPSL502X:pvr:rvnDellInc.:rn0NJT03:rvrA00:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System XPS L502X
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug natty
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https://bugs.launchpad.net/bugs/838181
Title:
External monitor connected trough mini DisplayPort wired to integrated
Intel AGP is properly recognized and configured but has no sync
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