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Title: SRU: Launching a Qt app crashes X when using Xinerama Status in X.Org X server: Fix Released Status in “nvidia-graphics-drivers” package in Ubuntu: Invalid Status in “qt4-x11” package in Ubuntu: Invalid Status in “xorg-server” package in Ubuntu: Fix Released Status in “nvidia-graphics-drivers” source package in Maverick: Invalid Status in “qt4-x11” source package in Maverick: Invalid Status in “xorg-server” source package in Maverick: Fix Released Bug description: Justification: ============= Regression from Ubuntu 10.04, causing an Xserver crash when starting a Qt application in an multi-head X configuration using Xinerama. The X crash risks losing user data from unsaved documents in applications. Fix: === This is caused by a typo in commit 80b5d3a3. A fix has been pulled to the server-1.9 stable branch in commit 3effb61e (http://cgit.freedesktop.org/xorg/xserver/commit/?id=78f94f19aab66a1e5331df0ce29f36e310b4195d ). This commit has been cherry-picked onto the Natty xserver tree. Test case: ======== Start a Qt app such as Skype while using Xinerama multi-head. Users of the binary nVidia driver who have multiple monitors and select “Separate X screen” rather than “Twinview” in nvidia-settings will be using a Xinerama multi-head configuration. Regression Potential: ================== Low. Patch is a one-line typo fix, and anything which exercises this codepath currently crashes. Original report: PROBLEM ======= Starting a Qt app such as Skype crashes X, leaving "Caught signal 11 (Segmentation fault). Server aborting" in Xorg.0.log.old and the dazzled user with the login screen. This is a bug in X, fixed upstream in http://cgit.freedesktop.org/xorg/xserver/commit/?id=78f94f19aab66a1e5331df0ce29f36e310b4195d . WORKAROUND ========== Until the fix is released as an official Ubuntu update, Jared Bunting has it in his PPA at https://launchpad.net/~jared-bunting/+archive/xorg-xserver-650539 (thx!). You need xserver-xorg-core and xserver-common, so for 32 bit 1) Download https://launchpad.net/~jared-bunting/+archive/xorg-xserver-650539/+files/xserver-xorg-core_1.9.0-0ubuntu7%2Bbug650539%2B1_i386.deb and https://launchpad.net/~jared-bunting/+archive/xorg-xserver-650539/+files/xserver-common_1.9.0-0ubuntu7%2Bbug650539%2B1_all.deb 2) Install sudo dpkg -i xserver-xorg-core_1.9.0-0ubuntu7+bug650539+1_i386.deb xserver-common_1.9.0-0ubuntu7+bug650539+1_all.deb ORIGINAL DESCRIPTION ==================== I think this may be related to QT apps, as keepassx, skype also crash X when started This is on maverick will all current updates. ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: speedcrunch 0.10.1-2 ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 NonfreeKernelModules: nvidia Architecture: amd64 Date: Tue Sep 28 12:29:04 2010 InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429) ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: speedcrunch --- Architecture: amd64 DistroRelease: Ubuntu 10.10 InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429) NonfreeKernelModules: nvidia Package: xorg 1:7.5+6ubuntu3 PackageArchitecture: amd64 ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Tags: maverick Uname: Linux 2.6.35-22-generic x86_64 UnreportableReason: The drivers from nvidia.com are not supported by Ubuntu. Please uninstall them and test whether your problem still occurs. UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare video system: distro: Ubuntu codename: maverick architecture: x86_64 kernel: 2.6.35-22-generic To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/650539/+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
