Public bug reported:
Display backlight turns back on almost immediately after being turned
off.
In theory DPMS support has landed in XMir, but it's not really working.
TEST CASE:
xset dpms force off
Expected: Screen turns off and stays off
Observed: Screen turns off and then immediately either:
(a) turns back on fully; or
(b) the backlight turns back on but the screen remains black.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: xserver-xorg-xmir 2:1.14.2.901-2ubuntu6
ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1
Uname: Linux 3.11.0-8-generic x86_64
ApportVersion: 2.12.4-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
Date: Fri Sep 27 16:25:33 2013
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics
Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device [17aa:21da]
InstallationDate: Installed on 2013-06-11 (107 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130611)
MachineType: LENOVO 4286CTO
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-8-generic
root=UUID=25c27832-0efa-4fc4-8a14-41af68d008dc ro quiet splash vt.handoff=7
SourcePackage: xorg-server
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/18/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 8DET69WW (1.39 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4286CTO
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:bvr8DET69WW(1.39):bd07/18/2013:svnLENOVO:pn4286CTO:pvrThinkPadX220:rvnLENOVO:rn4286CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4286CTO
dmi.product.version: ThinkPad X220
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.10+13.10.20130920-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.46-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu9
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
xserver.bootTime: Fri Sep 27 16:45:50 2013
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs: Output DP-0 DP-1
DP-2 HDMI-0 HDMI-1 HDMI-2 VGA-0
xserver.version: 2:1.14.2.901-2ubuntu6
xserver.video_driver: intel
** Affects: mir
Importance: Undecided
Status: New
** Affects: ubuntu-power-consumption
Importance: Undecided
Status: New
** Affects: xmir
Importance: Undecided
Status: New
** Affects: xorg-server (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug saucy ubuntu
** Summary changed:
- Display backlight turns back on almost immediately after being turned off
+ [DPMS] Display backlight turns back on almost immediately after being turned
off
** Also affects: mir
Importance: Undecided
Status: New
** Also affects: xmir
Importance: Undecided
Status: New
** Also affects: ubuntu-power-consumption
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1231857
Title:
[DPMS] Display backlight turns back on almost immediately after being
turned off
To manage notifications about this bug go to:
https://bugs.launchpad.net/mir/+bug/1231857/+subscriptions
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