程序和 GUI 崩溃，一段时间后返回登录屏幕。目前，今天的两个文件，/var/crash一个是 380 kB，另一个是 33 MB。时间不同，所以似乎与两次不同的崩溃有关。计算机是带有 Skylake 显卡的 Toshiba Z30。已经按照其他帖子中的一些建议在选项中禁用了 Java 运行时环境。很难确定崩溃的位置，因为它偶尔发生，但屏幕冻结，最后一个屏幕上总是有突出显示的文本。
先谢谢您的帮助。
下面是其中一个文件内容的开头/var/crash（其余部分似乎是来自核心转储的相同二进制内容）：
ProblemType: Crash
Architecture: amd64
CrashCounter: 1
CurrentDesktop: Unity
Date: Mon Oct 2 15:29:12 2017
DistroRelease: Ubuntu 16.04
ExecutablePath: /sbin/upstart
ExecutableTimestamp: 1463667884
ProcCmdline: /sbin/upstart --user
ProcCwd: /home/adva
ProcEnviron:
LC_PAPER=he_IL.UTF-8
LC_ADDRESS=he_IL.UTF-8
LC_MONETARY=he_IL.UTF-8
SHELL=/bin/bash
LC_NUMERIC=he_IL.UTF-8
LC_TELEPHONE=he_IL.UTF-8
PATH=(custom, user)
LC_IDENTIFICATION=he_IL.UTF-8
LANG=en_US.UTF-8
LC_MEASUREMENT=he_IL.UTF-8
LANGUAGE=en_US
XDG_RUNTIME_DIR=<set>
LC_TIME=he_IL.UTF-8
LC_NAME=he_IL.UTF-8
ProcMaps:
5601dbdbe000-5601dbe05000 r-xp 00000000 08:02 12976347 /sbin/upstart
5601dc005000-5601dc007000 r--p 00047000 08:02 12976347 /sbin/upstart
5601dc007000-5601dc008000 rw-p 00049000 08:02 12976347 /sbin/upstart
5601dc7f8000-5601dc8db000 rw-p 00000000 00:00 0 [heap]
7f14fac14000-7f14fac1f000 r-xp 00000000 08:02 7606846 /lib/x86_64-linux-gnu/libnss_files-2.23.so
7f14fac1f000-7f14fae1e000 ---p 0000b000 08:02 7606846 /lib/x86_64-linux-gnu/libnss_files-2.23.so
7f14fae1e000-7f14fae1f000 r--p 0000a000 08:02 7606846 /lib/x86_64-linux-gnu/libnss_files-2.23.so
7f14fae1f000-7f14fae20000 rw-p 0000b000 08:02 7606846 /lib/x86_64-linux-gnu/libnss_files-2.23.so
7f14fae20000-7f14fae26000 rw-p 00000000 00:00 0
7f14fae26000-7f14fae31000 r-xp 00000000 08:02 7606856 /lib/x86_64-linux-gnu/libnss_nis-2.23.so
7f14fae31000-7f14fb030000 ---p 0000b000 08:02 7606856 /lib/x86_64-linux-gnu/libnss_nis-2.23.so
7f14fb030000-7f14fb031000 r--p 0000a000 08:02 7606856 /lib/x86_64-linux-gnu/libnss_nis-2.23.so
7f14fb031000-7f14fb032000 rw-p 0000b000 08:02 7606856 /lib/x86_64-linux-gnu/libnss_nis-2.23.so
7f14fb032000-7f14fb048000 r-xp 00000000 08:02 7606840 /lib/x86_64-linux-gnu/libnsl-2.23.so
7f14fb048000-7f14fb247000 ---p 00016000 08:02 7606840 /lib/x86_64-linux-gnu/libnsl-2.23.so
7f14fb247000-7f14fb248000 r--p 00015000 08:02 7606840 /lib/x86_64-linux-gnu/libnsl-2.23.so
7f14fb248000-7f14fb249000 rw-p 00016000 08:02 7606840 /lib/x86_64-linux-gnu/libnsl-2.23.so
7f14fb249000-7f14fb24b000 rw-p 00000000 00:00 0
7f14fb24b000-7f14fb253000 r-xp 00000000 08:02 7606842 /lib/x86_64-linux-gnu/libnss_compat-2.23.so
7f14fb253000-7f14fb452000 ---p 00008000 08:02 7606842 /lib/x86_64-linux-gnu/libnss_compat-2.23.so
7f14fb452000-7f14fb453000 r--p 00007000 08:02 7606842 /lib/x86_64-linux-gnu/libnss_compat-2.23.so
7f14fb453000-7f14fb454000 rw-p 00008000 08:02 7606842 /lib/x86_64-linux-gnu/libnss_compat-2.23.so
7f14fb454000-7f14fbe14000 r--p 00000000 08:02 11803633 /usr/lib/locale/locale-archive
7f14fbe14000-7f14fbe26000 r-xp 00000000 08:02 7606791 /lib/x86_64-linux-gnu/libgpg-error.so.0.17.0
7f14fbe26000-7f14fc026000 ---p 00012000 08:02 7606791 /lib/x86_64-linux-gnu/libgpg-error.so.0.17.0
7f14fc026000-7f14fc027000 r--p 00012000 08:02 7606791 /lib/x86_64-linux-gnu/libgpg-error.so.0.17.0
7f14fc027000-7f14fc028000 rw-p 00013000 08:02 7606791 /lib/x86_64-linux-gnu/libgpg-error.so.0.17.0
7f14fc028000-7f14fc02b000 r-xp 00000000 08:02 7606771 /lib/x86_64-linux-gnu/libdl-2.23.so
7f14fc02b000-7f14fc22a000 ---p 00003000 08:02 7606771 /lib/x86_64-linux-gnu/libdl-2.23.so
7f14fc22a000-7f14fc22b000 r--p 00002000 08:02 7606771 /lib/x86_64-linux-gnu/libdl-2.23.so
7f14fc22b000-7f14fc22c000 rw-p 00003000 08:02 7606771 /lib/x86_64-linux-gnu/libdl-2.23.so
7f14fc22c000-7f14fc29a000 r-xp 00000000 08:02 7606876 /lib/x86_64-linux-gnu/libpcre.so.3.13.2
7f14fc29a000-7f14fc49a000 ---p 0006e000 08:02 7606876 /lib/x86_64-linux-gnu/libpcre.so.3.13.2
7f14fc49a000-7f14fc49b000 r--p 0006e000 08:02 7606876 /lib/x86_64-linux-gnu/libpcre.so.3.13.2
7f14fc49b000-7f14fc49c000 rw-p 0006f000 08:02 7606876 /lib/x86_64-linux-gnu/libpcre.so.3.13.2
7f14fc49c000-7f14fc574000 r-xp 00000000 08:02 7606787 /lib/x86_64-linux-gnu/libgcrypt.so.20.0.5
7f14fc574000-7f14fc773000 ---p 000d8000 08:02 7606787 /lib/x86_64-linux-gnu/libgcrypt.so.20.0.5
7f14fc773000-7f14fc774000 r--p 000d7000 08:02 7606787 /lib/x86_64-linux-gnu/libgcrypt.so.20.0.5
7f14fc774000-7f14fc77c000 rw-p 000d8000 08:02 7606787 /lib/x86_64-linux-gnu/libgcrypt.so.20.0.5
7f14fc77c000-7f14fc77d000 rw-p 00000000 00:00 0
7f14fc77d000-7f14fc79e000 r-xp 00000000 08:02 7606814 /lib/x86_64-linux-gnu/liblzma.so.5.0.0
7f14fc79e000-7f14fc99d000 ---p 00021000 08:02 7606814 /lib/x86_64-linux-gnu/liblzma.so.5.0.0
7f14fc99d000-7f14fc99e000 r--p 00020000 08:02 7606814 /lib/x86_64-linux-gnu/liblzma.so.5.0.0
7f14fc99e000-7f14fc99f000 rw-p 00021000 08:02 7606814 /lib/x86_64-linux-gnu/liblzma.so.5.0.0
7f14fc99f000-7f14fc9be000 r-xp 00000000 08:02 7606905 /lib/x86_64-linux-gnu/libselinux.so.1
7f14fc9be000-7f14fcbbd000 ---p 0001f000 08:02 7606905 /lib/x86_64-linux-gnu/libselinux.so.1
7f14fcbbd000-7f14fcbbe000 r--p 0001e000 08:02 7606905 /lib/x86_64-linux-gnu/libselinux.so.1
7f14fcbbe000-7f14fcbbf000 rw-p 0001f000 08:02 7606905 /lib/x86_64-linux-gnu/libselinux.so.1
7f14fcbbf000-7f14fcbc1000 rw-p 00000000 00:00 0
7f14fcbc1000-7f14fcbd9000 r-xp 00000000 08:02 7606893 /lib/x86_64-linux-gnu/libpthread-2.23.so
7f14fcbd9000-7f14fcdd8000 ---p 00018000 08:02 7606893 /lib/x86_64-linux-gnu/libpthread-2.23.so
7f14fcdd8000-7f14fcdd9000 r--p 00017000 08:02 7606893 /lib/x86_64-linux-gnu/libpthread-2.23.so
7f14fcdd9000-7f14fcdda000 rw-p 00018000 08:02 7606893 /lib/x86_64-linux-gnu/libpthread-2.23.so
7f14fcdda000-7f14fcdde000 rw-p 00000000 00:00 0
7f14fcdde000-7f14fcf9e000 r-xp 00000000 08:02 7606747 /lib/x86_64-linux-gnu/libc-2.23.so
7f14fcf9e000-7f14fd19e000 ---p 001c0000 08:02 7606747 /lib/x86_64-linux-gnu/libc-2.23.so
7f14fd19e000-7f14fd1a2000 r--p 001c0000 08:02 7606747 /lib/x86_64-linux-gnu/libc-2.23.so
7f14fd1a2000-7f14fd1a4000 rw-p 001c4000 08:02 7606747 /lib/x86_64-linux-gnu/libc-2.23.so
7f14fd1a4000-7f14fd1a8000 rw-p 00000000 00:00 0
7f14fd1a8000-7f14fd1af000 r-xp 00000000 08:02 7606901 /lib/x86_64-linux-gnu/librt-2.23.so
7f14fd1af000-7f14fd3ae000 ---p 00007000 08:02 7606901 /lib/x86_64-linux-gnu/librt-2.23.so
7f14fd3ae000-7f14fd3af000 r--p 00006000 08:02 7606901 /lib/x86_64-linux-gnu/librt-2.23.so
7f14fd3af000-7f14fd3b0000 rw-p 00007000 08:02 7606901 /lib/x86_64-linux-gnu/librt-2.23.so
7f14fd3b0000-7f14fd3fa000 r-xp 00000000 08:02 7606763 /lib/x86_64-linux-gnu/libdbus-1.so.3.14.6
7f14fd3fa000-7f14fd5fa000 ---p 0004a000 08:02 7606763 /lib/x86_64-linux-gnu/libdbus-1.so.3.14.6
7f14fd5fa000-7f14fd5fb000 r--p 0004a000 08:02 7606763 /lib/x86_64-linux-gnu/libdbus-1.so.3.14.6
7f14fd5fb000-7f14fd5fc000 rw-p 0004b000 08:02 7606763 /lib/x86_64-linux-gnu/libdbus-1.so.3.14.6
7f14fd5fc000-7f14fd604000 r-xp 00000000 08:02 7606833 /lib/x86_64-linux-gnu/libnih-dbus.so.1.0.0
7f14fd604000-7f14fd804000 ---p 00008000 08:02 7606833 /lib/x86_64-linux-gnu/libnih-dbus.so.1.0.0
7f14fd804000-7f14fd805000 r--p 00008000 08:02 7606833 /lib/x86_64-linux-gnu/libnih-dbus.so.1.0.0
7f14fd805000-7f14fd806000 rw-p 00009000 08:02 7606833 /lib/x86_64-linux-gnu/libnih-dbus.so.1.0.0
7f14fd806000-7f14fd81d000 r-xp 00000000 08:02 7606835 /lib/x86_64-linux-gnu/libnih.so.1.0.0
7f14fd81d000-7f14fda1d000 ---p 00017000 08:02 7606835 /lib/x86_64-linux-gnu/libnih.so.1.0.0
7f14fda1d000-7f14fda1e000 r--p 00017000 08:02 7606835 /lib/x86_64-linux-gnu/libnih.so.1.0.0
7f14fda1e000-7f14fda1f000 rw-p 00018000 08:02 7606835 /lib/x86_64-linux-gnu/libnih.so.1.0.0
7f14fda1f000-7f14fda40000 r-xp 00000000 08:02 7606752 /lib/x86_64-linux-gnu/libcgmanager.so.0.0.0
7f14fda40000-7f14fdc3f000 ---p 00021000 08:02 7606752 /lib/x86_64-linux-gnu/libcgmanager.so.0.0.0
7f14fdc3f000-7f14fdc41000 r--p 00020000 08:02 7606752 /lib/x86_64-linux-gnu/libcgmanager.so.0.0.0
7f14fdc41000-7f14fdc42000 rw-p 00022000 08:02 7606752 /lib/x86_64-linux-gnu/libcgmanager.so.0.0.0
7f14fdc42000-7f14fdc4c000 r-xp 00000000 08:02 7606806 /lib/x86_64-linux-gnu/libjson-c.so.2.0.0
7f14fdc4c000-7f14fde4b000 ---p 0000a000 08:02 7606806 /lib/x86_64-linux-gnu/libjson-c.so.2.0.0
7f14fde4b000-7f14fde4c000 r--p 00009000 08:02 7606806 /lib/x86_64-linux-gnu/libjson-c.so.2.0.0
7f14fde4c000-7f14fde4d000 rw-p 0000a000 08:02 7606806 /lib/x86_64-linux-gnu/libjson-c.so.2.0.0
7f14fde4d000-7f14fde73000 r-xp 00000000 08:02 7606719 /lib/x86_64-linux-gnu/ld-2.23.so
7f14fdfc6000-7f14fdfcc000 rw-p 00000000 00:00 0
7f14fdfcc000-7f14fe04c000 r-xp 00000000 08:02 7606915 /lib/x86_64-linux-gnu/libsystemd.so.0.14.0
7f14fe04c000-7f14fe04f000 r--p 0007f000 08:02 7606915 /lib/x86_64-linux-gnu/libsystemd.so.0.14.0
7f14fe04f000-7f14fe050000 rw-p 00082000 08:02 7606915 /lib/x86_64-linux-gnu/libsystemd.so.0.14.0
7f14fe050000-7f14fe054000 rw-p 00000000 00:00 0
7f14fe069000-7f14fe070000 r--s 00000000 08:02 12061868 /usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache
7f14fe070000-7f14fe072000 rw-p 00000000 00:00 0
7f14fe072000-7f14fe073000 r--p 00025000 08:02 7606719 /lib/x86_64-linux-gnu/ld-2.23.so
7f14fe073000-7f14fe074000 rw-p 00026000 08:02 7606719 /lib/x86_64-linux-gnu/ld-2.23.so
7f14fe074000-7f14fe075000 rw-p 00000000 00:00 0
7ffc34934000-7ffc34955000 rw-p 00000000 00:00 0 [stack]
7ffc34996000-7ffc34998000 r--p 00000000 00:00 0 [vvar]
7ffc34998000-7ffc3499a000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
ProcStatus:
Name: upstart
Umask: 0002
State: S (sleeping)
Tgid: 30642
Ngid: 0
Pid: 30642
PPid: 30511
TracerPid: 0
Uid: 1000 1000 1000 1000
Gid: 1000 1000 1000 1000
FDSize: 256
Groups: 4 24 27 30 46 113 128 1000
NStgid: 30642
NSpid: 30642
NSpgid: 30642
NSsid: 30642
VmPeak: 53548 kB
VmSize: 53548 kB
VmLck: 0 kB
VmPin: 0 kB
VmHWM: 4700 kB
VmRSS: 4700 kB
RssAnon: 1168 kB
RssFile: 3532 kB
RssShmem: 0 kB
VmData: 1152 kB
VmStk: 132 kB
VmExe: 284 kB
VmLib: 5032 kB
VmPTE: 116 kB
VmPMD: 12 kB
VmSwap: 0 kB
HugetlbPages: 0 kB
Threads: 1
SigQ: 27/30540
SigPnd: 0000000000000000
ShdPnd: 0000000000000000
SigBlk: 0000000000000000
SigIgn: 0000000000001000
SigCgt: 0000000180016001
CapInh: 0000000000000000
CapPrm: 0000000000000000
CapEff: 0000000000000000
CapBnd: 0000003fffffffff
CapAmb: 0000000000000000
NoNewPrivs: 0
Seccomp: 0
Cpus_allowed: f
Cpus_allowed_list: 0-3
Mems_allowed: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
Mems_allowed_list: 0
voluntary_ctxt_switches: 8613
nonvoluntary_ctxt_switches: 1285
Signal: 6
Uname: Linux 4.10.0-35-generic x86_64
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_LogindSession: c6
输出lowriter
** (soffice:6170): WARNING **: Unknown event notification 36
** (soffice:6170): WARNING **: Unknown event notification 36
… … …
** (soffice:6170): WARNING **: Unknown event notification 36
X IO Error
~/.xsession-errors 的内容
openConnection: connect: No such file or directory
cannot connect to brltty at :0
/var/log/dmesg 的内容
(Nothing has been logged yet.)
/var/log/syslog 的内容
Oct 3 11:45:40 buster systemd[1]: Starting Automatically fetch and run repair assertions...
Oct 3 11:45:40 buster snap-repair[6937]: error: cannot use snap-repair on a classic system
Oct 3 11:45:40 buster systemd[1]: Started Automatically fetch and run repair assertions.
Oct 3 11:46:03 buster kernel: [ 6030.040353] [drm] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [951], reason: Hang on render ring, action: reset
Oct 3 11:46:03 buster kernel: [ 6030.040390] drm/i915: Resetting chip after gpu hang
Oct 3 11:46:03 buster kernel: [ 6030.040490] [drm] RC6 on
Oct 3 11:46:03 buster kernel: [ 6030.061093] [drm] GuC firmware load skipped
Oct 3 11:46:16 buster kernel: [ 6042.959539] drm/i915: Resetting chip after gpu hang
Oct 3 11:46:16 buster kernel: [ 6042.959607] [drm] RC6 on
Oct 3 11:46:16 buster kernel: [ 6042.973815] [drm] GuC firmware load skipped
Oct 3 11:46:30 buster kernel: [ 6056.975691] drm/i915: Resetting chip after gpu hang
Oct 3 11:46:30 buster kernel: [ 6056.975768] [drm] RC6 on
Oct 3 11:46:30 buster kernel: [ 6056.991880] [drm] GuC firmware load skipped
Oct 3 11:46:45 buster kernel: [ 6071.983819] drm/i915: Resetting chip after gpu hang
Oct 3 11:46:45 buster kernel: [ 6071.983890] [drm] RC6 on
Oct 3 11:46:45 buster kernel: [ 6071.998038] [drm] GuC firmware load skipped
Oct 3 11:46:55 buster kernel: [ 6081.967887] drm/i915: Resetting chip after gpu hang
Oct 3 11:46:55 buster kernel: [ 6081.967948] [drm] RC6 on
Oct 3 11:46:55 buster kernel: [ 6081.982176] [drm] GuC firmware load skipped
Oct 3 11:46:55 buster org.gnome.Terminal[1320]: (gnome-terminal-server:6126): Gdk-WARNING **: gnome-terminal-server: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Oct 3 11:46:55 buster gnome-session[1456]: (update-notifier:2209): Gdk-WARNING **: update-notifier: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Oct 3 11:46:55 buster org.freedesktop.Notifications[1320]: (notify-osd:2287): Gdk-WARNING **: notify-osd: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Oct 3 11:46:55 buster gnome-session[1456]: (polkit-gnome-authentication-agent-1:1622): Gdk-WARNING **: polkit-gnome-authentication-agent-1: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Oct 3 11:46:55 buster org.a11y.atspi.Registry[1466]: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
Oct 3 11:46:55 buster org.a11y.atspi.Registry[1466]: after 17781 requests (17781 known processed) with 0 events remaining.
Oct 3 11:46:55 buster bluetoothd[1018]: Endpoint unregistered: sender=:1.73 path=/MediaEndpoint/A2DPSource
Oct 3 11:46:55 buster gnome-session[1456]: (unity-fallback-mount-helper:1623): Gdk-WARNING **: unity-fallback-mount-helper: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Oct 3 11:46:55 buster bluetoothd[1018]: Endpoint unregistered: sender=:1.73 path=/MediaEndpoint/A2DPSink
Oct 3 11:46:55 buster gnome-session[1456]: (gnome-software:1631): Gdk-WARNING **: gnome-software: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Oct 3 11:46:55 buster gnome-session[1456]: (nautilus:1632): Gdk-WARNING **: nautilus: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Oct 3 11:46:55 buster gnome-session[1456]: (nm-applet:1626): Gdk-WARNING **: nm-applet: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
Oct 3 11:46:57 buster gnome-session[1456]: Failed to connect to Mir: Failed to connect to server socket: No such file or directory
Oct 3 11:46:57 buster gnome-session[1456]: Unable to init server: Could not connect: Connection refused
Oct 3 11:46:57 buster gnome-session[1456]: (polkit-gnome-authentication-agent-1:7014): Gtk-WARNING **: cannot open display: :0
Oct 3 11:46:57 buster gnome-session[1456]: (deja-dup-monitor:3130): GVFS-RemoteVolumeMonitor-WARNING **: Owner of volume monitor org.gtk.vfs.MTPVolumeMonitor disconnected from the bus; removing drives/volumes/mounts
Oct 3 11:46:57 buster gnome-session[1456]: (deja-dup-monitor:3130): GVFS-RemoteVolumeMonitor-WARNING **: Owner of volume monitor org.gtk.vfs.GPhoto2VolumeMonitor disconnected from the bus; removing drives/volumes/mounts
Oct 3 11:46:57 buster gnome-session[1456]: gnome-session-binary[1456]: GLib-GIO-WARNING: Error releasing name org.gnome.SessionManager: The connection is closed
Oct 3 11:46:57 buster gnome-session-binary[1456]: GLib-GIO-WARNING: Error releasing name org.gnome.SessionManager: The connection is closed
Oct 3 11:46:58 buster NetworkManager[829]: <info> [1507020418.1059] device (wlp2s0): state change: activated -> deactivating (reason 'connection-removed') [100 110 38]
Oct 3 11:46:58 buster NetworkManager[829]: <info> [1507020418.1066] manager: NetworkManager state is now DISCONNECTING
Oct 3 11:46:58 buster NetworkManager[829]: <info> [1507020418.1138] device (wlp2s0): state change: deactivating -> disconnected (reason 'connection-removed') [110 30 38]
Oct 3 11:46:58 buster avahi-daemon[744]: Withdrawing address record for fe80::bbe:3dc9:1304:7008 on wlp2s0.
Oct 3 11:46:58 buster avahi-daemon[744]: Leaving mDNS multicast group on interface wlp2s0.IPv6 with address fe80::bbe:3dc9:1304:7008.
Oct 3 11:46:58 buster avahi-daemon[744]: Interface wlp2s0.IPv6 no longer relevant for mDNS.
Oct 3 11:46:58 buster lightdm[916]: ** (lightdm:916): CRITICAL **: session_get_login1_session_id: assertion 'session != NULL' failed
Oct 3 11:46:58 buster systemd[1]: Stopping User Manager for UID 1000...
Oct 3 11:46:58 buster systemd[1234]: Stopped target Default.
Oct 3 11:46:58 buster systemd[1234]: Reached target Shutdown.
Oct 3 11:46:58 buster systemd[1234]: Starting Exit the Session...
Oct 3 11:46:58 buster systemd[1234]: Stopped target Basic System.
Oct 3 11:46:58 buster systemd[1234]: Stopped target Paths.
Oct 3 11:46:58 buster systemd[1234]: Stopped target Timers.
Oct 3 11:46:58 buster systemd[1234]: Stopped target Sockets.
Oct 3 11:46:58 buster NetworkManager[829]: <info> [1507020418.1503] dhcp4 (wlp2s0): canceled DHCP transaction, DHCP client pid 2203
Oct 3 11:46:58 buster NetworkManager[829]: <info> [1507020418.1504] dhcp4 (wlp2s0): state changed bound -> done
Oct 3 11:46:58 buster systemd[1234]: Received SIGRTMIN+24 from PID 7065 (kill).
Oct 3 11:46:58 buster kernel: [ 6084.277192] wlp2s0: deauthenticating from 74:da:38:14:12:d7 by local choice (Reason: 3=DEAUTH_LEAVING)
Oct 3 11:46:58 buster whoopsie[2066]: [11:46:58] offline
Oct 3 11:46:58 buster systemd[1]: Stopped User Manager for UID 1000.
Oct 3 11:46:58 buster wpa_supplicant[976]: wlp2s0: CTRL-EVENT-DISCONNECTED bssid=74:da:38:14:12:d7 reason=3 locally_generated=1
Oct 3 11:46:58 buster avahi-daemon[744]: Withdrawing address record for 10.0.0.8 on wlp2s0.
Oct 3 11:46:58 buster avahi-daemon[744]: Leaving mDNS multicast group on interface wlp2s0.IPv4 with address 10.0.0.8.
Oct 3 11:46:58 buster NetworkManager[829]: <info> [1507020418.1695] dns-mgr: Writing DNS information to /sbin/resolvconf
Oct 3 11:46:58 buster avahi-daemon[744]: Interface wlp2s0.IPv4 no longer relevant for mDNS.
Oct 3 11:46:58 buster dnsmasq[2221]: setting upstream servers from DBus
Oct 3 11:46:58 buster systemd[1]: Created slice User Slice of lightdm.
Oct 3 11:46:58 buster systemd[1]: Removed slice User Slice of adva.
Oct 3 11:46:58 buster systemd[1]: Starting User Manager for UID 108...
Oct 3 11:46:58 buster NetworkManager[829]: <info> [1507020418.1902] manager: NetworkManager state is now DISCONNECTED
Oct 3 11:46:58 buster dbus[798]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Oct 3 11:46:58 buster NetworkManager[829]: <warn> [1507020418.2000] sup-iface[0x1c9ab80,wlp2s0]: connection disconnected (reason -3)
Oct 3 11:46:58 buster NetworkManager[829]: <info> [1507020418.2023] device (wlp2s0): supplicant interface state: completed -> disconnected
Oct 3 11:46:58 buster systemd[1]: Starting Network Manager Script Dispatcher Service...
Oct 3 11:46:58 buster systemd[1]: Started Session c3 of user lightdm.
Oct 3 11:46:58 buster dbus[798]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Oct 3 11:46:58 buster systemd[1]: Started Network Manager Script Dispatcher Service.
Oct 3 11:46:58 buster nm-dispatcher: req:1 'down' [wlp2s0]: new request (1 scripts)
Oct 3 11:46:58 buster nm-dispatcher: req:1 'down' [wlp2s0]: start running ordered scripts...
Oct 3 11:46:58 buster systemd[7077]: Reached target Paths.
Oct 3 11:46:58 buster systemd[7077]: Reached target Sockets.
Oct 3 11:46:58 buster systemd[7077]: Reached target Timers.
Oct 3 11:46:58 buster systemd[7077]: Reached target Basic System.
Oct 3 11:46:58 buster systemd[7077]: Reached target Default.
Oct 3 11:46:58 buster systemd[7077]: Startup finished in 28ms.
Oct 3 11:46:58 buster systemd[1]: Started User Manager for UID 108.
Oct 3 11:46:58 buster org.a11y.atspi.Registry[7114]: SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry
Oct 3 11:46:58 buster rtkit-daemon[1084]: Successfully made thread 7193 of process 7193 (n/a) owned by '108' high priority at nice level -11.
Oct 3 11:46:58 buster rtkit-daemon[1084]: Supervising 1 threads of 1 processes of 1 users.
Oct 3 11:46:58 buster rtkit-daemon[1084]: Supervising 1 threads of 1 processes of 1 users.
Oct 3 11:46:58 buster rtkit-daemon[1084]: Successfully made thread 7219 of process 7193 (n/a) owned by '108' RT at priority 5.
Oct 3 11:46:58 buster rtkit-daemon[1084]: Supervising 2 threads of 1 processes of 1 users.
Oct 3 11:46:58 buster rtkit-daemon[1084]: Supervising 2 threads of 1 processes of 1 users.
Oct 3 11:46:58 buster rtkit-daemon[1084]: Successfully made thread 7221 of process 7193 (n/a) owned by '108' RT at priority 5.
Oct 3 11:46:58 buster rtkit-daemon[1084]: Supervising 3 threads of 1 processes of 1 users.
Oct 3 11:46:58 buster bluetoothd[1018]: Endpoint registered: sender=:1.140 path=/MediaEndpoint/A2DPSource
Oct 3 11:46:58 buster bluetoothd[1018]: Endpoint registered: sender=:1.140 path=/MediaEndpoint/A2DPSink
Oct 3 11:46:58 buster pulseaudio[7193]: [pulseaudio] backend-ofono.c: Failed to register as a handsfree audio agent with ofono: org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files
Oct 3 11:46:58 buster rtkit-daemon[1084]: Successfully made thread 7223 of process 7223 (n/a) owned by '108' high priority at nice level -11.
Oct 3 11:46:58 buster rtkit-daemon[1084]: Supervising 4 threads of 2 processes of 1 users.
Oct 3 11:46:58 buster pulseaudio[7223]: [pulseaudio] pid.c: Daemon already running.
答案1
可能是这个错误：https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1575301
解决方法是运行 libreofficeLIBGL_ALWAYS_SOFTWARE=1环境变量。将其更改为桌面启动图标：
cd /usr/share/applications
sudo perl -i.orig -p -e 's/Exec=libreoffice/Exec=env LIBGL_ALWAYS_SOFTWARE=1 libreoffice/g' libreoffice-*.desktop