The bug seems 13.10 specific as other installations are not affected. My Macbook Pro 11.3 has Kernel 3.13. When the screen freezes, sound (e.g., skype) still works and I can move the mouse but not click. It seems to me (but this is really just a speculation) that the freeze occurs more often shortly (10-60min) after connecting or disconnecting to/from an external screen.
WORKAROUND: Restart lightdm by sudo service lightdm restart.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: xorg 1:7.7+1ubuntu6
Uname: Linux 3.13.0-031300-generic x86_64
NonfreeKernelModules: wl
.tmp.unity.support.test.0:
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Sat Feb 15 10:53:57 2014
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
DkmsStatus:
bbswitch, 0.7: added
bcmwl, 6.30.223.141+bdcom, 3.12.0-031200-generic, x86_64: installed
bcmwl, 6.30.223.141+bdcom, 3.12.0-994-generic, x86_64: installed
bcmwl, 6.30.223.141+bdcom, 3.13.0-031300-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
NVIDIA Corporation Device [10de:0fe9] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Apple Inc. Device [106b:0130]
InstallationDate: Installed on 2013-11-02 (105 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
LightdmGreeterLog:
** (process:4957): WARNING **: Failed to open sessions directory: Error opening directory '/usr/share/lightdm/sessions': No such file or directory
file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135: Unable to assign [undefined] to QString usersession
LightdmGreeterLogOld:
** (process:1891): WARNING **: Failed to open sessions directory: Error opening directory '/usr/share/lightdm/sessions': No such file or directory
file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135: Unable to assign [undefined] to QString usersession
MachineType: Apple Inc. MacBookPro11,3
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-031300-generic root=UUID=72c1718a-363f-49f8-9416-27bbab5988d5 ro quiet splash libata.force=1:noncq vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/03/2013
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP112.88Z.0138.B00.1310031144
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-2BD1B31983FE1663
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro11,3
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-2BD1B31983FE1663
dmi.modalias: dmi:bvnAppleInc.:bvrMBP112.88Z.0138.B00.1310031144:bd10/03/2013:svnAppleInc.:pnMacBookPro11,3:pvr1.0:rvnAppleInc.:rnMac-2BD1B31983FE1663:rvrMacBookPro11,3:cvnAppleInc.:ct10:cvrMac-2BD1B31983FE1663:
dmi.product.name: MacBookPro11,3
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
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 2:1.14.5-1ubuntu2~saucy1
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 2:2.99.904-0ubuntu2.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Sat Feb 15 08:37:56 2014
xserver.configfile: /etc/X11/xorg.conf
xserver.errors:
Failed to load module "nvidia" (module does not exist, 0)
Failed to load module "nvidia" (module does not exist, 0)
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.14.5-1ubuntu2~saucy1
xserver.video_driver: nouveau
Status changed to 'Confirmed' because the bug affects multiple users.