Actually there exist 2 settings, 1st one affects screensaver (blank screen), 2nd affects monitor power saving mode (suspends monitor): 1. Schema: org.gnome.desktop.session, Key: idle-delay 2. Schema: org.gnome.settings-daemon.plugins.power, Key: sleep-display-ac "System Settings" > "Brightness and Lock" seems to set both of them simultaneously, when you choose the timeout "Turn screen off when inactive for:". But you can set them separately with 'dconf' tool or using gsettings. If your screen blanks unexpectedly, check these 2 keys and correct them as needed.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/836945 Title: Screen always goes blank after 10 minutes Status in “gnome-settings-daemon” package in Ubuntu: Confirmed Bug description: Even though my screen saver settings say to "Turn off after: 1 hour", my screens always go blank after 10 minutes of inactivity. This is entirely reproducible. I am using the free glx driver with my Radeon HD 4670 card, dual-headed. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: xorg 1:7.6+7ubuntu6 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic x86_64 Architecture: amd64 BootLog: udevd[362]: error: runtime directory '/run/udev' not writable, for now falling back to '/dev/.udev' fsck from util-linux 2.19.1 /dev/sdb2: clean, 142348/90841088 files, 6520516/363354368 blocks CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unitydialog,unityshell] CompositorRunning: None Date: Mon Aug 29 14:52:39 2011 DistUpgraded: Fresh install DistroCodename: oneiric DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: ATI Technologies Inc RV730XT [Radeon HD 4670] [1002:9490] (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:2542] InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1) MachineType: Dell Inc. Studio XPS 435MT ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-9-generic root=UUID=7ffae0c6-66ea-4bbd-ae3d-f98ddd9603a5 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/05/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.1.1 dmi.board.name: 0R849J dmi.board.vendor: Dell Inc. dmi.board.version: A03 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.1.1:bd05/05/2009:svnDellInc.:pnStudioXPS435MT:pvr:rvnDellInc.:rn0R849J:rvrA03:cvnDellInc.:ct3:cvr: dmi.product.name: Studio XPS 435MT dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.5.92+bzr2791-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu19 version.libdrm2: libdrm2 2.4.26-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3 version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/836945/+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