I can confirm this bug also occurs for me. I have a Dell Inspiron N5010 running 12.04 64-bit. It occurs also when when adjusting the brightness well after the computer has started up, although it seems the most consistent way of reproducing the bug is to try to adjust the brightness in the first minute or so after logging in. Also, I have the laptop set up not to suspend when I close the lid. Closing and opening the lid only causes the screen to turn off and on, which can also trigger a complete system freeze. When the freeze occurs, it IS complete: CTRL+ALT+SysReq doesn't work, nor can I switch to a command line view with CTRL+ALT+F1.
-- 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/987630 Title: changing brightness freezes computer Status in “gnome-settings-daemon” package in Ubuntu: Confirmed Bug description: on startup, changing the brightness freezes the computer completely. After I wait around five minutes, I am able to change the brightness without causing it to freeze but until then, if I change it the computer freezes. I am not sure what package handles this. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnome-settings-daemon 3.4.1-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 ApportVersion: 2.0.1-0ubuntu5 Architecture: amd64 Date: Tue Apr 24 00:47:59 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328) ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-settings-daemon UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/987630/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

