I believe this is actually a duplicate of bug 1046118 but I thought that required at least gdm to be running. Do you know for sure whether you are using gdm or lightdm for your logon screen?
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1072531 Title: [regression] X11 screen blanking after 10 minutes with no UI to change it Status in X.Org X server: Won't Fix Status in “xorg-server” package in Ubuntu: Confirmed Bug description: After updating from Ubuntu 12.04 Precise to Ubuntu 12.10 Quantal, X11 has started automatically blanking the screen after 10 minutes of inactivity even though I have set "Turn off screen when inactive" in "Brightness and Lock" to 1 hour. If I change "Turn off screen when inactive" to 1 minute, then the screen turns off after 1 minute as it should, but if I set it back to 1 hour then the screen goes back to blanking after 10 minutes, not turning off after 1 hour as it should. So it seems that there are two independent timers and the GUI has no effect on the 10 minute one. Looking in xset, there is indeed a 10-minute screen blanking timeout. $ xset q Keyboard Control: auto repeat: on key click percent: 0 LED mask: 00002000 XKB indicators: 00: Caps Lock: off 01: Num Lock: off 02: Scroll Lock: off 03: Compose: off 04: Kana: off 05: Sleep: off 06: Suspend: off 07: Mute: off 08: Misc: off 09: Mail: off 10: Charging: off 11: Shift Lock: off 12: Group 2: off 13: Mouse Keys: on auto repeat delay: 500 repeat rate: 33 auto repeating keys: 00ffffffdffffbbf fadfffefffedffff 9fffffffffffffff fff7ffffffffffff bell percent: 50 bell pitch: 400 bell duration: 100 Pointer Control: acceleration: 2/1 threshold: 4 Screen Saver: prefer blanking: yes allow exposures: yes timeout: 600 cycle: 600 Colors: default colormap: 0x20 BlackPixel: 0x0 WhitePixel: 0xffffff Font Path: /usr/share/fonts/X11/misc,/usr/share/fonts/X11/100dpi/:unscaled,/usr/share/fonts/X11/75dpi/:unscaled,/usr/share/fonts/X11/Type1,/usr/share/fonts/X11/100dpi,/usr/share/fonts/X11/75dpi,/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,built-ins DPMS (Energy Star): Standby: 0 Suspend: 0 Off: 0 DPMS is Enabled Monitor is On $ Note that I am using a dual head configuration so I have an xorg0.conf and an xorg1.conf, but there is nothing in either related to screen blanking. Both heads experience the same problem. My other machine that I upgraded from 12.04 to 12.10 does not. Running "xset s 0 0" avoids the problem. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xserver-xorg-core 2:1.13.0-0ubuntu6 ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7 Uname: Linux 3.5.0-18-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.gpus.1: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/1' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 304.43 Sun Aug 19 20:14:03 PDT 2012 GCC version: gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1) .tmp.unity.support.test.0: .tmp.unity.support.test.1: ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 CompizPlugins: [core,composite,opengl,decor,grid,imgpng,gnomecompat,move,place,regex,resize,snap,animation,vpswitch,session,mousepoll,unitymtgrabhandles,compiztoolbox,wall,expo,workarounds,ezoom,fade,scale,unityshell] CompositorRunning: compiz Date: Sun Oct 28 19:41:51 2012 DistUpgraded: 2012-10-28 10:39:13,985 DEBUG enabling apt cron job DistroCodename: quantal DistroVariant: ubuntu DkmsStatus: nvidia-current, 304.43, 3.2.0-32-generic, x86_64: installed nvidia-current, 304.43, 3.5.0-18-generic, x86_64: installed ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: NVIDIA Corporation GF110 [GeForce GTX 570] [10de:1081] (rev a1) (prog-if 00 [VGA controller]) Subsystem: eVga.com. Corp. Device [3842:1570] NVIDIA Corporation GF110 [GeForce GTX 570] [10de:1081] (rev a1) (prog-if 00 [VGA controller]) Subsystem: eVga.com. Corp. Device [3842:1570] JockeyStatus: kmod:nvidia_experimental_304 - Experimental NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use) kmod:nvidia_experimental_310 - Experimental NVIDIA binary Xorg driver, kernel module and VDPAU library (Free, Disabled, Not in use) kmod:nvidia_current - nvidia_current (Proprietary, Enabled, Not in use) kmod:nvidia_current_updates - NVIDIA binary Xorg driver, kernel module and VDPAU library (Proprietary, Disabled, Not in use) MachineType: System76, Inc. The Leopard Extreme MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: root=UUID=e7728359-15b1-4eb6-a7c9-db1b40e7c807 ro quiet splash SourcePackage: xorg-server UpgradeStatus: Upgraded to quantal on 2012-10-28 (0 days ago) dmi.bios.date: 12/14/2010 dmi.bios.vendor: Intel Corp. dmi.bios.version: SOX5810J.86A.5529.2010.1214.2317 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: DX58SO dmi.board.vendor: Intel Corporation dmi.board.version: AAE29331-503 dmi.chassis.type: 2 dmi.modalias: dmi:bvnIntelCorp.:bvrSOX5810J.86A.5529.2010.1214.2317:bd12/14/2010:svnSystem76,Inc.:pnTheLeopardExtreme:pvrleo1:rvnIntelCorporation:rnDX58SO:rvrAAE29331-503:cvn:ct2:cvr: dmi.product.name: The Leopard Extreme dmi.product.version: leo1 dmi.sys.vendor: System76, Inc. version.compiz: compiz 1:0.9.8.4+bzr3407-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.39-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120913.8637f772-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3 To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1072531/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
