After a long time of no system freeze it happened again a few minutes ago: I'm not sure whether this is the same symptom as with the crashes before. I could reboot using the MagicSysRq keys.
ar 22 11:33:25 x1cbn systemd-timesyncd[1035]: Synchronized to time server 91.189.94.4:123 (ntp.ubuntu.com). Mar 22 11:36:11 x1cbn org.gnome.Shell.desktop[2055]: libinput error: event6 - Synaptics TM3288-011: kernel bug: Touch jump detected and discarded. Mar 22 11:36:11 x1cbn org.gnome.Shell.desktop[2055]: See https://wayland.freedesktop.org/libinput/doc/1.12.1/touchpad-jumping-cursors.html for details Mar 22 11:36:13 x1cbn org.gnome.Shell.desktop[2055]: libinput error: event6 - Synaptics TM3288-011: kernel bug: Touch jump detected and discarded. Mar 22 11:36:13 x1cbn org.gnome.Shell.desktop[2055]: See https://wayland.freedesktop.org/libinput/doc/1.12.1/touchpad-jumping-cursors.html for details Mar 22 11:37:25 x1cbn pulseaudio[2100]: W: [alsa-sink-USB Audio] alsa-util.c: Could not recover from POLLERR|POLLNVAL|POLLHUP and XRUN: Datenübergabe unterbrochen (broken pipe) Mar 22 11:37:25 x1cbn kernel: [58375.090461] usb 5-1.4: cannot submit urb (err = -27) Mar 22 11:37:25 x1cbn kernel: [58375.090609] usb 5-1.4: cannot submit urb 0, error -27: internal error Mar 22 11:38:08 x1cbn firefox.desktop[2055]: IPDL protocol Error: Received an invalid file descriptor Mar 22 11:38:27 x1cbn org.gnome.Shell.desktop[2055]: Window manager warning: last_user_time (58437907) is greater than comparison timestamp (58437769). This most likely represents a buggy client sending inaccurate timestamps in messages such as _NET_ACTIVE_WINDOW. Trying to work around... Mar 22 11:38:27 x1cbn org.gnome.Shell.desktop[2055]: Window manager warning: 0x1800003 (Benutzer ä) appears to be one of the offending windows with a timestamp of 58437907. Working around... Mar 22 11:39:20 x1cbn org.gnome.Shell.desktop[2055]: libinput error: client bug: timer event6 keyboard: offset negative (-2799ms) Mar 22 11:39:31 x1cbn kernel: [58501.502853] sysrq: SysRq : Keyboard mode set to system default Mar 22 11:39:31 x1cbn kernel: [58501.690698] sysrq: SysRq : Terminate All Tasks Mar 22 11:39:31 x1cbn kernel: [58501.690960] systemd-journald[498]: Received SIGTERM. ** Changed in: linux (Ubuntu) Status: Fix Released => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1802283 Title: system freezes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1802283/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
