apport information ** Tags added: apport-collected
** Description changed: Using kernel 4.4.0 from Ubuntu GNOME 16.04 I get a lot of warnings 'drm_wait_one_vblank timed out' while booting and every time when I switch user or session via Alt-Fn. Example logs will be attached, I used this for saving the log: journalctl -b --system --no-pager |tee bootlog-$(uname -r)-$(lsb_release -sr) I suspect this may be related to some of my problems (slow switch, freeze, wrong VT: Alt-Fn6 roots to tty3) when switching virtual terminal. - I see these messages on 16.04 or 14.04 when using kernel - 4.4.0-21-generic, 4.4.0-22-generic or mainline kernel - 4.4.0-040400-generic or 4.5.2-040502-generic, but mainline kernel - 4.3.6-040306-generic does not throw this message and there are no - problems with 4.3.6 while switching VT. + I see these messages on 16.04 or 14.04 when using kernel 4.4.0-21-generic, 4.4.0-22-generic or mainline kernel 4.4.0-040400-generic or 4.5.2-040502-generic, but mainline kernel 4.3.6-040306-generic does not throw this message and there are no problems with 4.3.6 while switching VT. + --- + ApportVersion: 2.20.1-0ubuntu2 + Architecture: i386 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: k2 1475 F.... pulseaudio + CurrentDesktop: GNOME + DistroRelease: Ubuntu 16.04 + HibernationDevice: RESUME=UUID=8e0701ee-0c76-4396-bdd9-f406da205c7b + InstallationDate: Installed on 2016-03-31 (41 days ago) + InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Beta i386 (20160323.1) + MachineType: FUJITSU SIEMENS LIFEBOOK E8310 + Package: linux (not installed) + ProcEnviron: + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=de_DE.UTF-8 + SHELL=/bin/bash + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic root=UUID=5811fae8-2bd0-46c0-a1b3-4bd8b9f2c821 ro + ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8 + RelatedPackageVersions: + linux-restricted-modules-4.4.0-22-generic N/A + linux-backports-modules-4.4.0-22-generic N/A + linux-firmware 1.157 + RfKill: + 0: phy0: Wireless LAN + Soft blocked: no + Hard blocked: no + Tags: xenial + Uname: Linux 4.4.0-22-generic i686 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 12/27/2007 + dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd. + dmi.bios.version: Version 1.10 + dmi.board.name: FJNB1CE + dmi.board.vendor: FUJITSU + dmi.board.version: 1PCP331350-03 + dmi.chassis.type: 10 + dmi.chassis.vendor: FUJITSU SIEMENS + dmi.chassis.version: E8310 + dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion1.10:bd12/27/2007:svnFUJITSUSIEMENS:pnLIFEBOOKE8310:pvr:rvnFUJITSU:rnFJNB1CE:rvr1PCP331350-03:cvnFUJITSUSIEMENS:ct10:cvrE8310: + dmi.product.name: LIFEBOOK E8310 + dmi.sys.vendor: FUJITSU SIEMENS ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1580697/+attachment/4661052/+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/1580697 Title: Kernel freezes after drm_wait_one_vblank timed out To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1580697/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs