JazZ, looks similar to Bug #1510970 , could you please verify if you experience the same symptoms as described over there and if so mark this bug as duplicate of #1510970 ? Thank you!
In my experience, I didn't run into this issue ever since upgrading to kernel 4.3. If you want, please join me in testing this. Upcoming kernels can be downloaded from http://kernel.ubuntu.com/~kernel-ppa/mainline/ -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1511476 Title: Unstable unity session Status in xorg package in Ubuntu: Incomplete Bug description: Hi, My unity session crash randomly, when I am working on my computer, or when nothing is done in my computer. This occurs repeatedly since I have installed ubuntu 15.10. This does not happen on my laptop. The main difference I noticed between my computer and my laptop is that my laptop has an NVidia Graphic card and my computer has an intel Core™ i5-2320 as CPU/GPU. So it has no Graphic Card. Here you will find my syslog file content, during the crash : Oct 29 18:23:10 choupchoup org.a11y.atspi.Registry[1438]: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0" Oct 29 18:23:10 choupchoup org.a11y.atspi.Registry[1438]: after 5183 requests (5183 known processed) with 0 events remaining. Oct 29 18:23:10 choupchoup org.freedesktop.Notifications[1349]: (notify-osd:2595): Gdk-WARNING **: notify-osd: Fatal IO error 11 (Ressource temporairement non disponible) on X server :0. Oct 29 18:23:10 choupchoup gnome-session[1565]: (polkit-gnome-authentication-agent-1:1747): Gdk-WARNING **: polkit-gnome-authentication-agent-1: Fatal IO error 11 (Ressource temporairement non disponible) on X server :0. Oct 29 18:23:10 choupchoup gnome-session[1565]: (nm-applet:1754): Gdk-WARNING **: nm-applet: Fatal IO error 11 (Ressource temporairement non disponible) on X server :0. Oct 29 18:23:10 choupchoup gnome-session[1565]: (update-notifier:2058): Gdk-WARNING **: update-notifier: Fatal IO error 11 (Ressource temporairement non disponible) on X server :0. Oct 29 18:23:10 choupchoup gnome-session[1565]: (telepathy-indicator:1933): Gdk-WARNING **: telepathy-indicator: Fatal IO error 11 (Ressource temporairement non disponible) on X server :0. Oct 29 18:23:10 choupchoup gnome-session[1565]: (unity-fallback-mount-helper:1751): Gdk-WARNING **: unity-fallback-mount-helper: Fatal IO error 11 (Ressource temporairement non disponible) on X server :0. Oct 29 18:23:10 choupchoup gnome-session[1565]: (nautilus:1748): Gdk-WARNING **: nautilus: Fatal IO error 11 (Ressource temporairement non disponible) on X server :0. Oct 29 18:23:10 choupchoup org.ayatana.bamf[1349]: (bamfdaemon:1407): Gdk-WARNING **: bamfdaemon: Fatal IO error 11 (Ressource temporairement non disponible) on X server :0. Oct 29 18:23:10 choupchoup acpid: client 815[0:0] has disconnected Oct 29 18:23:10 choupchoup acpid: client connected from 3456[0:0] Oct 29 18:23:10 choupchoup acpid: 1 client rule loaded Oct 29 18:23:10 choupchoup org.freedesktop.Notifications[1349]: loading icon 'notification-nm-no-connection' caused error: 'L'icône « notification-nm-no-connection » n'est pas présente dans le thème ubuntu-mono-dark'loading icon 'notification-nm-device-wired' caused error: 'L'icône « notification-nm-device-wired » n'est pas présente dans le thème ubuntu-mono-dark' Oct 29 18:23:10 choupchoup gnome-session[1565]: (deja-dup-monitor:2092): GVFS-RemoteVolumeMonitor-WARNING **: Owner of volume monitor org.gtk.Private.UDisks2VolumeMonitor disconnected from the bus; removing drives/volumes/mounts Oct 29 18:23:10 choupchoup gnome-session[1565]: (deja-dup-monitor:2092): GVFS-RemoteVolumeMonitor-WARNING **: Owner of volume monitor org.gtk.Private.GPhoto2VolumeMonitor disconnected from the bus; removing drives/volumes/mounts Oct 29 18:23:10 choupchoup gnome-session[1565]: (deja-dup-monitor:2092): GVFS-RemoteVolumeMonitor-WARNING **: Owner of volume monitor org.gtk.Private.MTPVolumeMonitor disconnected from the bus; removing drives/volumes/mounts Oct 29 18:23:10 choupchoup gnome-session[1565]: (deja-dup-monitor:2092): GVFS-RemoteVolumeMonitor-WARNING **: Owner of volume monitor org.gtk.Private.AfcVolumeMonitor disconnected from the bus; removing drives/volumes/mounts Oct 29 18:23:10 choupchoup gnome-session[1565]: gnome-session[1565]: GLib-GIO-WARNING: Error releasing name org.gnome.SessionManager: The connection is closed Oct 29 18:23:10 choupchoup gnome-session[1565]: GLib-GIO-WARNING: Error releasing name org.gnome.SessionManager: The connection is closed Oct 29 18:23:10 choupchoup org.gnome.zeitgeist.Engine[1349]: (zeitgeist-daemon:1902): GLib-GIO-WARNING **: Error releasing name org.gnome.zeitgeist.Engine: The connection is closed Oct 29 18:23:10 choupchoup org.gnome.zeitgeist.Engine[1349]: #033[31m[17:23:10.094000 WARNING]#033[0m zeitgeist-daemon.vala:449: The connection is closed Oct 29 18:23:10 choupchoup org.gnome.zeitgeist.SimpleIndexer[1349]: (zeitgeist-fts:1911): GLib-GIO-WARNING **: Error releasing name org.gnome.zeitgeist.SimpleIndexer: The connection is closed Oct 29 18:23:10 choupchoup org.gnome.zeitgeist.SimpleIndexer[1349]: ** (zeitgeist-fts:1911): WARNING **: zeitgeist-fts.vala:252: The connection is closed Oct 29 18:23:10 choupchoup gnome-session[1565]: Invalid MIT-MAGIC-COOKIE-1 key Oct 29 18:23:10 choupchoup gnome-session[1565]: ** (polkit-gnome-authentication-agent-1:3464): WARNING **: Could not open X display Oct 29 18:23:10 choupchoup org.a11y.Bus[1349]: Invalid MIT-MAGIC-COOKIE-1 key Oct 29 18:23:10 choupchoup gnome-session[1565]: Invalid MIT-MAGIC-COOKIE-1 keyFailed to connect to Mir: Failed to connect to server socket: Aucun fichier ou dossier de ce type Oct 29 18:23:10 choupchoup gnome-session[1565]: Unable to init server: Impossible de se connecter : Connexion refusée Oct 29 18:23:10 choupchoup gnome-session[1565]: (polkit-gnome-authentication-agent-1:3464): Gtk-WARNING **: cannot open display: :0 Oct 29 18:23:10 choupchoup lightdm[807]: ** (lightdm:807): CRITICAL **: session_get_login1_session_id: assertion 'session != NULL' failed Oct 29 18:23:10 choupchoup systemd[1]: Stopping User Manager for UID 1000... Oct 29 18:23:10 choupchoup systemd[1246]: Stopped target Default. Oct 29 18:23:10 choupchoup systemd[1246]: Stopped target Basic System. Oct 29 18:23:10 choupchoup systemd[1246]: Stopped target Sockets. Oct 29 18:23:10 choupchoup systemd[1246]: Stopped target Paths. Oct 29 18:23:10 choupchoup systemd[1246]: Stopped target Timers. Oct 29 18:23:10 choupchoup systemd[1246]: Reached target Shutdown. Oct 29 18:23:10 choupchoup systemd[1246]: Starting Exit the Session... Oct 29 18:23:10 choupchoup systemd[1]: Created slice user-119.slice. Oct 29 18:23:10 choupchoup systemd[1246]: Received SIGRTMIN+24 from PID 3478 (kill). Oct 29 18:23:10 choupchoup systemd[1]: Starting User Manager for UID 119... Oct 29 18:23:10 choupchoup systemd[1]: Stopped User Manager for UID 1000. Oct 29 18:23:10 choupchoup systemd[1]: Removed slice user-1000.slice. Oct 29 18:23:10 choupchoup systemd[1]: Started Session c3 of user lightdm. Oct 29 18:23:10 choupchoup systemd[3479]: Reached target Timers. Oct 29 18:23:10 choupchoup systemd[3479]: Reached target Paths. Oct 29 18:23:10 choupchoup systemd[3479]: Reached target Sockets. Oct 29 18:23:10 choupchoup systemd[3479]: Reached target Basic System. Oct 29 18:23:10 choupchoup systemd[3479]: Reached target Default. Oct 29 18:23:10 choupchoup systemd[3479]: Startup finished in 15ms. Oct 29 18:23:10 choupchoup systemd[1]: Started User Manager for UID 119. Oct 29 18:23:10 choupchoup org.a11y.atspi.Registry[3506]: SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry Oct 29 18:23:10 choupchoup dbus[713]: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service' Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Successfully made thread 3592 of process 3592 (n/a) owned by '119' high priority at nice level -11. Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Supervising 1 threads of 1 processes of 1 users. Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Supervising 1 threads of 1 processes of 1 users. Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Successfully made thread 3618 of process 3592 (n/a) owned by '119' RT at priority 5. Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Supervising 2 threads of 1 processes of 1 users. Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Supervising 2 threads of 1 processes of 1 users. Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Successfully made thread 3619 of process 3592 (n/a) owned by '119' RT at priority 5. Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Supervising 3 threads of 1 processes of 1 users. Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Successfully made thread 3621 of process 3621 (n/a) owned by '119' high priority at nice level -11. Oct 29 18:23:10 choupchoup rtkit-daemon[960]: Supervising 4 threads of 2 processes of 1 users. Oct 29 18:23:10 choupchoup pulseaudio[3621]: [pulseaudio] pid.c: Daemon already running. Oct 29 18:23:35 choupchoup pulseaudio[3592]: [pulseaudio] bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.TimedOut: Failed to activate service 'org.bluez': timed out Oct 29 18:23:45 choupchoup org.gtk.vfs.Daemon[3496]: A connection to the bus can't be made ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.19.1-0ubuntu4 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell] CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Thu Oct 29 18:27:53 2015 DistUpgraded: Fresh install DistroCodename: wily DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device [1043:844d] InstallationDate: Installed on 2015-10-19 (9 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20151017) MachineType: System manufacturer System Product Name ProcEnviron: LANGUAGE=fr_FR TERM=xterm-256color PATH=(custom, no user) LANG=fr_FR.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=58ed72e3-50c4-484e-a107-fd1ee85282b1 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7 SourcePackage: xorg UdevLog: Error: [Errno 2] Aucun fichier ou dossier de ce type: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/09/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4101 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8Z68-V LE dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4101:bd05/09/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VLE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Thu Oct 29 18:23:10 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.17.2-1ubuntu9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1511476/+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
