You have been subscribed to a public bug: Since last night's updates, automatically logging in with LightDM causes the screen to be blank with only a cursor shown. The desktop does appear to be rendered on the background, because moving icons and clicking menus (after guessing where they are) does work. The only way to get things normal again is by restarting the lightdm service.
It doesn't seem to happen every time, but it does happen a lot. I have also noticed that when manually logging in, the dmesg output on tty7 sometimes blends in with the desktop; for instance, a black box with a blinking cursor is shown, or when plugging in a USB thumb drive, the output from 'mount' will be displayed, until I move my cursor over that area. I'm running fully up-to-date Xubuntu 12.10 (no proposed packages though) on a laptop with Intel graphics (xserver-xorg-video-intel driver). ProblemType: Bug ApportVersion: 2.6.1-0ubuntu2 Architecture: amd64 Date: Wed Oct 10 09:49:02 2012 DistroRelease: Ubuntu 12.10 Package: xserver-xorg 1:7.7+1ubuntu4 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 3.5.0-17.27-generic 3.5.5 SourcePackage: xorg Tags: quantal Uname: Linux 3.5.0-17-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: autologin blank lightdm quantal screen -- After X update, tty7 is very glitchy https://bugs.launchpad.net/bugs/1064878 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. _______________________________________________ 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