This looks promising. I have upgraded from 12.04 to Quantal. Before my configuration was working with no external monitor and now it doesn't work anymore.
I noticed that the Xorg.conf file should actually be xorg.conf file. Which maybe means I was not using it before the upgrade. At least I can confirm than before I had a screen on my headless Precise and not I don't (again no monitor/screen is physically attached to it). I don't understand why my modes don't work with my monitor: 1791.645] (II) FBDEV(0): checking modes against framebuffer device... [ 1791.645] (EE) FBDEV(0): FBIOPUT_VSCREENINFO: Invalid argument [ 1791.645] (II) FBDEV(0): mode "1920x1080" test failed [ 1791.646] (II) FBDEV(0): mode "1920x1080" not found [ 1791.646] (EE) FBDEV(0): FBIOPUT_VSCREENINFO: Invalid argument [ 1791.646] (II) FBDEV(0): mode "1280x1024" test failed [ 1791.646] (II) FBDEV(0): mode "1280x1024" not found [ 1791.646] (EE) FBDEV(0): FBIOPUT_VSCREENINFO: Invalid argument [ 1791.646] (II) FBDEV(0): mode "1024x768" test failed [ 1791.646] (II) FBDEV(0): mode "1024x768" not found [ 1791.646] (EE) FBDEV(0): FBIOPUT_VSCREENINFO: Invalid argument [ 1791.646] (II) FBDEV(0): mode "1024x768" test failed [ 1791.646] (II) FBDEV(0): mode "1024x768" not found [ 1791.646] (EE) FBDEV(0): FBIOPUT_VSCREENINFO: Invalid argument [ 1791.646] (II) FBDEV(0): mode "800x600" test failed [ 1791.646] (II) FBDEV(0): mode "800x600" not found [ 1791.646] (II) FBDEV(0): checking modes against monitor... ** Attachment removed: "Xorg.0.log" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1069031/+attachment/3475650/+files/Xorg.0.log ** Attachment added: "Contains the xorg.cong and the log" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1069031/+attachment/3476048/+files/Xorg-config-log.zip -- 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/1069031 Title: intel gma3600: X unable to start Status in X.Org X server: New Status in “xorg-server” package in Ubuntu: Fix Released Status in “xorg-server” source package in Quantal: Fix Released Bug description: X is unable to start on a Acer AOD270 intel atom netbook with a gma3600 chipset when the gma500_gfx kernel driver is loaded. (xorg.0.log) [ 41.352] (EE) intel(0): [drm] Failed to detect GEM. Kernel 2.6.28 required. [ 41.352] (EE) intel(0): Failed to become DRM master. [ 41.352] (II) UnloadModule: "intel" [ 41.353] (EE) Screen(s) found, but none have a usable configuration. [ 41.353] Fatal server error: Workaround is to blacklist the gma500_glx module, which allows X to start by falling back to the vesa FB driver. Applying the patch described here fixes the problem without the need to blacklist. http://bugzillafiles.novell.org/attachment.cgi?id=499509 ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xserver-xorg-video-intel 2:2.20.9-0ubuntu2 ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5 Uname: Linux 3.5.0-17-generic i686 NonfreeKernelModules: wl ApportVersion: 2.6.1-0ubuntu3 Architecture: i386 Date: Sat Oct 20 11:35:10 2012 InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423) SourcePackage: xserver-xorg-video-intel UpgradeStatus: Upgraded to quantal on 2012-10-19 (1 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1069031/+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
