Public bug reported:
I have set all battery powered profiles to disable desktop effects.
Normal performance profile has effects enabled. When I connect power
plug the screen goes black. I just get white cursor which can be moved
around. As soon as I disconnect power display returns to normal as
effects get disabled. It also doesn't go black if effects are not
enabled automatically (by modifying power profiles accordingly or
disabling effects globally). When power is connected switching effects
on and off works fine.
This is on Kubuntu 11.4, upgraded from Kubuntu 10.10 with Intel's 945GM
graphics.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
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: merike 2071 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xee240000 irq 47'
Mixer name : 'Analog Devices AD1981'
Components : 'HDA:11d41981,17aa2025,00100200'
Controls : 21
Simple ctrls : 12
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
7BHT40WW-1.13'
Mixer name : 'ThinkPad EC 7BHT40WW-1.13'
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 4 [29%] [on]
Date: Wed May 25 20:45:14 2011
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=d090d387-5b33-429c-bf5c-5cc53ad775b5
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427)
MachineType: LENOVO 1702M3G
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
5.0V 16-bit PC Card
ProcEnviron:
LANGUAGE=et_EE
LANG=et_EE.utf8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic
root=UUID=f16d6301-5b0f-4fae-b15b-2bfc5fe0357b ro quiet splash
usbcore.autosuspend=1 vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-8-generic N/A
linux-backports-modules-2.6.38-8-generic N/A
linux-firmware 1.52
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-04-30 (25 days ago)
dmi.bios.date: 11/20/2008
dmi.bios.vendor: LENOVO
dmi.bios.version: 7BETD7WW (2.18 )
dmi.board.name: 1702M3G
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:bvr7BETD7WW(2.18):bd11/20/2008:svnLENOVO:pn1702M3G:pvrThinkPadX60s:rvnLENOVO:rn1702M3G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 1702M3G
dmi.product.version: ThinkPad X60s
dmi.sys.vendor: LENOVO
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: apport-bug i386 natty
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https://bugs.launchpad.net/bugs/788262
Title:
Screen goes black when desktop effects are enabled on power connect
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