Public bug reported: I have a Lenovo Ideapad Yoga 13. I use it with an external monitor via HDMI at home and at work. If I re-arrange the monitors in the display settings (which is to the left/right) at home my laptop screen (build-in monitor) goes black. Turns out the backlight brightness gets set to 0. I can just increase the brightness using the hardware button, but this is still super annoying.
Note, I had to follow this to get the brightness keys working in the first place: http://askubuntu.com/questions/375621/brightness-0-on-lenovo-g500s-on-startup-boot Thanks! ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: xorg 1:7.7+1ubuntu6 ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7 Uname: Linux 3.11.0-14-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus] CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Mon Dec 9 20:26:39 2013 DistUpgraded: Fresh install DistroCodename: saucy DistroVariant: ubuntu DkmsStatus: virtualbox, 4.2.16, 3.11.0-12-generic, x86_64: installed virtualbox, 4.2.16, 3.11.0-13-generic, x86_64: installed virtualbox, 4.2.16, 3.11.0-14-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:3977] InstallationDate: Installed on 2013-11-29 (10 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: LENOVO 20175 MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic root=UUID=818e6f09-14a1-40df-9cdb-98a6ad118af2 ro quiet splash acpi_backlight=vendor vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/21/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 66CN54WW dmi.board.asset.tag: No Asset Tag dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900003WIN8 STD MLT dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo IdeaPad Yoga 13 dmi.modalias: dmi:bvnLENOVO:bvr66CN54WW:bd01/21/2013:svnLENOVO:pn20175:pvrLenovoIdeaPadYoga13:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadYoga13: dmi.product.name: 20175 dmi.product.version: Lenovo IdeaPad Yoga 13 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.46-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.14.3-3ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1 xserver.bootTime: Mon Dec 9 11:31:58 2013 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 864 vendor LGD xserver.version: 2:1.14.3-3ubuntu2 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 saucy ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1259369 Title: Built-in display brightness drops to 0 after monitor rearrangment To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1259369/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
