apport information ** Tags added: apport-collected quantal running-unity
** Description changed: When switching to a guest session, or to a different user, the system often freezes. At times this also happens when terminating a guest session. The system free happens when: * switching to a guest session from an ordinary user session without terminating the active user session * switching to a different user from an ordinary user session without terminating the active user session * terminating a guest session initiated from an ordinary user session Ctrl+Alt+Fn and Ctrl+Alt+Del dont have any effect, and apparently also SysReq+key. The only way of regaining control is to switch off and on the PC with the power button. - My PC has an Intel Core i5 CPU 760 @ 2.80GHz × 4 with 8GB of RAM, a - 450GB hard disk, and an Nvidia Quadro 400 graphics card. I'm running 64 - bit Ubuntu 12.10 with the Noveau drivers. + My PC has an Intel Core i5 CPU 760 @ 2.80GHz × 4 with 8GB of RAM, a 450GB hard disk, and an Nvidia Quadro 400 graphics card. I'm running 64 bit Ubuntu 12.10 with the Noveau drivers. + --- + ApportVersion: 2.6.1-0ubuntu10 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC2: paolo 2112 F.... pulseaudio + /dev/snd/controlC1: paolo 2112 F.... pulseaudio + /dev/snd/controlC0: paolo 2112 F.... pulseaudio + CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. + DistroRelease: Ubuntu 12.10 + HibernationDevice: RESUME=UUID=bf3a6625-a77d-4873-8881-486211c8bef1 + InstallationDate: Installed on 2013-02-16 (11 days ago) + InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) + IwConfig: + eth0 no wireless extensions. + + lo no wireless extensions. + MachineType: System manufacturer System Product Name + MarkForUpload: True + Package: linux (not installed) + ProcEnviron: + TERM=xterm + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=it_IT.UTF-8 + SHELL=/bin/bash + ProcFB: 0 nouveaufb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-25-generic root=UUID=e97b7152-ea93-487a-a54b-c54346a2f645 ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 3.5.0-25.39-generic 3.5.7.4 + RelatedPackageVersions: + linux-restricted-modules-3.5.0-25-generic N/A + linux-backports-modules-3.5.0-25-generic N/A + linux-firmware 1.95 + RfKill: + + Tags: quantal running-unity + Uname: Linux 3.5.0-25-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + dmi.bios.date: 07/09/2010 + dmi.bios.vendor: American Megatrends Inc. + dmi.bios.version: 0903 + dmi.board.asset.tag: To Be Filled By O.E.M. + dmi.board.name: P7P55-M + 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.:bvr0903:bd07/09/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7P55-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: + dmi.product.name: System Product Name + dmi.product.version: System Version + dmi.sys.vendor: System manufacturer ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1129486/+attachment/3549668/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1129486 Title: System freezes when switching to guest session or other user To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1129486/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs