uninstalling the xserver-xorg-video-intel did not help. the output of tail -f /var/log/kern.log during the switch from graphics to linux console is in the attachment.
** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1789258/+attachment/5181635/+files/1 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1789258 Title: drm:drm_atomic_helper_wait_for_dependencies flip_done timed out Status in libdrm package in Ubuntu: New Bug description: every now an then the system freezes but eventually comes back to life. the boot process is especially slow, login greeter takes ages to come up and then, while there, needs some extra time to unfreeze and actually allow typing in the password. the freeze can be easily reproduced each time when switching from graphics to console (with ctrl-alt-fN) and back. each time the dmesg gets also gets appended with the error messages that can be found in the attached text file. is the workaround really to uninstall intel's xorg drivers? ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: libdrm-intel1 2.4.91-2 ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18 Uname: Linux 4.15.0-33-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: XFCE Date: Mon Aug 27 20:03:14 2018 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu GraphicsCard: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) (prog-if 00 [VGA controller]) Subsystem: Lenovo Mobile GM965/GL960 Integrated Graphics Controller (primary) [17aa:383e] Subsystem: Lenovo Mobile GM965/GL960 Integrated Graphics Controller (secondary) [17aa:383e] InstallationDate: Installed on 2018-08-24 (3 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 0769BJG ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-33-generic root=UUID=5c1b96ff-002e-4358-bf56-8dd74e76584d ro dis_ucode_ldr SourcePackage: libdrm UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/11/2008 dmi.bios.vendor: LENOVO dmi.bios.version: 68ET37WW dmi.board.name: IEL10 dmi.board.vendor: LENOVO dmi.board.version: REFERENCE dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnLENOVO:bvr68ET37WW:bd06/11/2008:svnLENOVO:pn0769BJG:pvr3000N200:rvnLENOVO:rnIEL10:rvrREFERENCE:cvnNoEnclosure:ct10:cvrN/A: dmi.product.family: Lenovo dmi.product.name: 0769BJG dmi.product.version: 3000 N200 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.91-2 version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1789258/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
