Experiencing this issue with Natty 11.04 on a 5810T. I erroneously created another bug report for this issue at this URL https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/783262
Here's the description as my comment here. Feel free to remove the other bug, if this is the proper place. This issue happens nearly every time I press the Function key in conjunction with the left or right arrows. I often intend to press Ctrl + Arrows to move the cursor, but the Function key is adjacent to Ctrl. What happens, the following symptoms are observed. The desktop is preserved as it was at the time of the crash. The system time never advances nor does any other visual indicator update (such as network disconnect, media insert, etc). I can move the mouse about the screen, but the pointer does not change based upon the context and no clicks are registered. No keystrokes are registered. I cannot press Special (Window) + F2 or Special + Escape to bring up any system menus. I have needed to restart the computer to correct this. (I can test again with less drastic steps if anyone wishes to make recommendations.) (I believe the issue is with xorg-server, not various gnome processes.) I am using an Acer Aspire Timeline 5810T, a laptop. Here is a interesting series of steps that will reproduce this issue every time: Boot the computer. At the GDM login screen, prior to logging in... Press Function + Left Arrow and Function + Right Arrow a couple of times. Notice that there is a screen overlay that shows the brightness level in the upper right corner (LCD brightness is mapped to my FN + Arrows) At this point I can still use the mouse and keystrokes are still being registered. Log into the system by selecting a user account and entering a password. You will begin to see the desktop load, accompanied by a login sound. The cursor changes to a waiting icon. At this point, the system ceases to be responsive any further, according to the description provided above. The mouse will still move the wait cursor around the screen. Keystrokes other than Ctrl + Alt + F# are not recognized. ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: xserver-xorg-core 2:1.10.1-1ubuntu1 ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2 Uname: Linux 2.6.38-8-generic-pae i686 Architecture: i386 Date: Sun May 15 21:09:31 2011 DistroCodename: natty DistroVariant: ubuntu ExecutablePath: /usr/bin/Xorg InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110413) ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/446717 Title: [gm45] Adjusting Brightness in Acer Aspire Timelines causes system freeze in 4810T and 5810T models _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
