Guillaume Coté, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p xorg-server REPLACE-WITH-BUG-NUMBER Please note, given you already have done this in a prior release, performing this on a release prior to Trusty would not be helpful. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Changed in: xorg-server (Ubuntu) Importance: Undecided => Low ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- 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/660931 Title: Xorg seg fault when no monitor is plug Status in “xorg-server” package in Ubuntu: Incomplete Bug description: Binary package hint: xorg This is the backtrace in Xorg.0.log Backtrace: 0: /usr/bin/X (xorg_backtrace+0x28) [0x4a3258] 1: /usr/bin/X (0x400000+0x655bd) [0x4655bd] 2: /lib/libpthread.so.0 (0x7fcfc7622000+0xf8f0) [0x7fcfc76318f0] 3: /usr/bin/X (xf86InitViewport+0x4b) [0x5247db] 4: /usr/bin/X (InitOutput+0xb2d) [0x473f9d] 5: /usr/bin/X (0x400000+0x26005) [0x426005] 6: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7fcfc6319c4d] 7: /usr/bin/X (0x400000+0x25d59) [0x425d59] Segmentation fault at address 0x24 Caught signal 11 (Segmentation fault). Server aborting This bug start showing when I upgraded from Xubuntu 8.04 "Hardy Heron" to 10.04 "Lucid Lynx". X start correctly when a monitor is plugged but not when no monitor is plug. I used X without a monitor by vnc for several month with Xubuntu 8.04 "Hardy Heron". ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: xorg 1:7.5+5ubuntu1 ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7 Uname: Linux 2.6.32-25-generic x86_64 Architecture: amd64 Date: Fri Oct 15 00:06:39 2010 DkmsStatus: Error: [Errno 2] No such file or directory Lsusb: Bus 002 Device 002: ID 093a:2510 Pixart Imaging, Inc. Hama Optical Mouse Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: MSI MS-7309 ProcCmdLine: root=UUID=076bd830-9434-4c54-9aac-5a1a250343b3 ro quiet splash ProcEnviron: LANGUAGE=en_CA:en LANG=en_CA.UTF-8 SHELL=/usr/bin/zsh SourcePackage: xorg dmi.bios.date: 02/17/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V9.4 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: MS-7309 dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV9.4:bd02/17/2009:svnMSI:pnMS-7309:pvr1.0:rvnMSI:rnMS-7309:rvr1.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: MS-7309 dmi.product.version: 1.0 dmi.sys.vendor: MSI system: distro: Ubuntu codename: lucid architecture: x86_64 kernel: 2.6.32-25-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/660931/+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

