Unconnecting hdmi cable from port causes lock up and screen corruption

[Anton Kanishchev]

the laptop connected to an external display, it is driving only the external display when attached. if the hdmi cable is removed whilst lid is closed, upon opening the lid computer locks up- display does not come on. if lid is opened beforehand and the hdmi cable is removed, it causes system to crash, displaying screen corruption, being unresponsive to any input(capslock on /of virtual terminal etc).

*****UPDATE 20 Mar 2013****

It seems that simply entering a virtual console, and trying to revert back to the gui (ctrl+alt +f7, without reloading lightdm) also crashes the system , causing screen corruption.
**************

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.5.0-25-generic 3.5.0-25.39~precise1
ProcVersionSignature: Ubuntu 3.5.0-25.39~precise1-generic 3.5.7.4
Uname: Linux 3.5.0-25-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: anton 2007 F.... pulseaudio
 /dev/snd/controlC0: anton 2007 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xd4a00000 irq 48'
   Mixer name : 'Realtek ALC262'
   Components : 'HDA:10ec0262,104d3a00,00100302 HDA:14f12c06,104d1700,00100000'
   Controls : 19
   Simple ctrls : 9
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xd0030000 irq 49'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,104d3a00,00100100'
   Controls : 6
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Mon Mar 18 20:23:11 2013
HibernationDevice: RESUME=UUID=96f3ccb2-c675-4cd3-a242-7f717a365e33
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130214)
MachineType: Sony Corporation VGN-NW11S_T
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-25-generic root=/dev/mapper/volumegrp01-volume02 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.5.0-25-generic N/A
 linux-backports-modules-3.5.0-25-generic N/A
 linux-firmware 1.79.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/27/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R0180Y4
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0180Y4:bd08/27/2009:svnSonyCorporation:pnVGN-NW11S_T:pvrC601PLF4:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VGN-NW11S_T
dmi.product.version: C601PLF4
dmi.sys.vendor: Sony Corporation

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.9 kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-rc3-raring/

[Anton Kanishchev (ak12-deactivatedaccount)]

Have tested 3.9 rc3 raring kernel,(from 17 march) installed 64bit version and the extras.deb

Problem persists on 3.9 kernel.

[Anton Kanishchev (ak12-deactivatedaccount)]

It seems that just entering virtual console and switching back causes the system to crash.

[Anton Kanishchev (ak12-deactivatedaccount)]

 this problem is not experienced with 3.2 kernel. Perhaps this is a problem with xorg 1.13 and my hd4xxx AMD card, however I am running radeon open source drivers...

[Anton Kanishchev (ak12-deactivatedaccount)]

This problem is due to sudo apt-get install xserver-xorg-lts-quantal package that is installed (with amd radeon hd2000-4000).

Other configurations do not seem to be affected

Installing xserver-xorg-lts-precise , and removing xserver-xorg-lts-quantal, fixes this problem.

[penalvch (penalvch)]

Anton Kanishchev, xorg-lts-quantal is EOL as of August 2014. For more on this, please see https://wiki.ubuntu.com/Kernel/LTSEnablementStack .

Is this reproducible in a supported release?

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]