Running up-to-date Saucy.
Just recently (within the last couple of days) my Asus Zenbook lost the ability to support two displays.
If I boot with an external display (via mini-vga port) it will work, but the internal panel will not. If I boot without the external display, the internal panel works fine, but hot-plugging the external panel does nothing.
If I check System Settings / Displays using the external monitor, I only see my external monitor, although Displays reports it as "Built-in Display".
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: compiz 1:0.9.9~daily13.04.18.1~13.04-0ubuntu1
ProcVersionSignature: Ubuntu 3.10.0-4.13-generic 3.10.1
Uname: Linux 3.10.0-4-generic x86_64
.tmp.unity.support.test.1:
ApportVersion: 2.11-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Sun Jul 21 12:37:31 2013
DistUpgraded: 2013-02-14 16:33:22,299 DEBUG enabling apt cron job
DistroCodename: saucy
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device [1043:1427]
InstallationDate: Installed on 2012-10-20 (273 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: ASUSTeK Computer Inc. UX31E
MarkForUpload: True
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.10.0-4-generic root=/dev/mapper/ubuntu-root ro splash pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 elevator=noop vt.handoff=7
SourcePackage: compiz
UpgradeStatus: Upgraded to saucy on 2013-02-14 (156 days ago)
dmi.bios.date: 12/26/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX31E.210
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX31E
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX31E.210:bd12/26/2011:svnASUSTeKComputerInc.:pnUX31E:pvr1.0:rvnASUSTeKComputerInc.:rnUX31E:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: UX31E
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
version.compiz: compiz 1:0.9.9~daily13.04.18.1~13.04-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.45-2ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.14.2-0ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.9-0ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.8-0ubuntu1.1
xserver.bootTime: Sun Jul 21 10:32:21 2013
xserver.configfile: default
xserver.errors: open /dev/dri/card0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.14.2-0ubuntu1
It's interesting, I used to suffer from LP 946311 on the same hardware. The result of that bug was that I couldn't turn on the laptop with a monitor plugged in, but hot-plugging later worked fine. Since sometime in the raring cycle (iirc) that problem was solved. It's been perfect up until just recently.