这怎么可能？我在 KDE 下使用 Toggl Desktop，稳定通道，大约 50% 的时间，在我这样做之后
xrandr --output DP1 --auto --primary --output eDP1 --off
Toggl 桌面很快就崩溃了，并关闭整个 KDE 和 Xorg 服务器用它。尽管 Toggl Desktop 有时会崩溃，但不会关闭整个桌面环境，但我直到刚才单击它然后它关闭了桌面时才意识到是 Toggl Desktop 导致了问题。
/var/log/Xorg.0.log.old显示明显正常关闭（X 服务器本身没有段错误）。
以下是一些相关内容journalctl -xb：
Feb 25 17:26:43 laptop audit[25435]: USER_AUTH pid=25435 uid=1000 auid=1000 ses=4 msg='op=PAM:unix_chkpwd acct="robin" exe="/usr/sbin/unix_chkpwd" hostname=? addr=? terminal=? res=success'
Feb 25 17:26:48 laptop audit[5042]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=4 pid=5042 comm="ksmserver" exe="/usr/bin/ksmserver" sig=11
Feb 25 17:26:48 laptop abrt-hook-ccpp[25440]: Process 5042 (ksmserver) of user 1000 killed by SIGSEGV - dumping core
Feb 25 17:26:48 laptop audit[21187]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=4 pid=21187 comm="QXcbEventReader" exe="/home/robin/opened/toggldesktop/TogglDesktop" sig=11
Feb 25 17:26:48 laptop kernel: QXcbEventReader[21187]: segfault at 7efed8052629 ip 00007efed8052629 sp 00007efed6c18da0 error 14 in locale-archive[7efed8569000+6952000]
Feb 25 17:26:48 laptop abrt-hook-ccpp[25442]: Process 21167 (TogglDesktop) of user 1000 killed by SIGSEGV - dumping core
Feb 25 17:26:48 laptop bluetoothd[920]: Endpoint unregistered: sender=:1.56 path=/MediaEndpoint/A2DPSource
Feb 25 17:26:48 laptop bluetoothd[920]: Endpoint unregistered: sender=:1.56 path=/MediaEndpoint/A2DPSink
Feb 25 17:26:48 laptop org.kde.kded5[4035]: kscreen: Failed to retrieve current config: "Backend invalidated"
Feb 25 17:26:48 laptop pulseaudio[25443]: [pulseaudio] main.c: User-configured server at {86b8923b1590429fb4426072e954d8de}unix:/run/user/1000/pulse/native, which appears to be local. Probing deeper.
Feb 25 17:26:48 laptop rtkit-daemon[972]: Successfully made thread 25447 of process 25447 (/usr/bin/pulseaudio) owned by '1000' high priority at nice level -11.
Feb 25 17:26:48 laptop rtkit-daemon[972]: Supervising 1 threads of 1 processes of 1 users.
Feb 25 17:26:48 laptop pulseaudio[25447]: [pulseaudio] pid.c: Stale PID file, overwriting.
Feb 25 17:26:48 laptop audit[11243]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=4 pid=11243 comm="QXcbEventReader" exe="/usr/bin/konsole" sig=11
Feb 25 17:26:48 laptop audit[5174]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=4 pid=5174 comm="QXcbEventReader" exe="/usr/bin/xembedsniproxy" sig=11
Feb 25 17:26:48 laptop audit[5098]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=4 pid=5098 comm="QXcbEventReader" exe="/usr/libexec/kdeconnectd" sig=11
Feb 25 17:26:48 laptop kernel: QXcbEventReader[11243]: segfault at 7f853c39eda9 ip 00007f853c39eda9 sp 00007f853a205ca0 error 14 in locale-archive[7f853c851000+6952000]
Feb 25 17:26:48 laptop kernel: QXcbEventReader[5174]: segfault at 7fd5d844fda9 ip 00007fd5d844fda9 sp 00007fd5d608bd20 error 14 in locale-archive[7fd5d8902000+6952000]
Feb 25 17:26:48 laptop kernel: QXcbEventReader[5098]: segfault at 7f9b463b7da9 ip 00007f9b463b7da9 sp 00007f9b4421eca0 error 14 in locale-archive[7f9b4686a000+6952000]
Feb 25 17:26:48 laptop kernel: Pid 5163(QXcbEventReader) over core_pipe_limit
Feb 25 17:26:48 laptop kernel: Skipping core dump
Feb 25 17:26:48 laptop polkitd[999]: Unregistered Authentication Agent for unix-session:4 (system bus name :1.50, object path /org/kde/PolicyKit1/AuthenticationAgent, locale en_GB.UTF-8) (disconnected from bus)
Feb 25 17:26:48 laptop abrt-hook-ccpp[25451]: Process 5084 (kdeconnectd) of user 1000 killed by SIGSEGV - dumping core
Feb 25 17:26:48 laptop abrt-hook-ccpp[25452]: Process 11242 (konsole) of user 1000 killed by SIGSEGV - dumping core
Feb 25 17:26:48 laptop rtkit-daemon[972]: Supervising 1 threads of 1 processes of 1 users.
Feb 25 17:26:48 laptop org.kde.kded5[4035]: kscreen: Failed to retrieve current config: "Backend invalidated"
Feb 25 17:26:48 laptop rtkit-daemon[972]: Successfully made thread 25467 of process 25447 (/usr/bin/pulseaudio) owned by '1000' RT at priority 5.
Feb 25 17:26:48 laptop rtkit-daemon[972]: Supervising 2 threads of 1 processes of 1 users.
Feb 25 17:26:48 laptop abrt-hook-ccpp[25451]: Failed to create core_backtrace: waitpid failed: No child processes
Feb 25 17:26:48 laptop rtkit-daemon[972]: Supervising 2 threads of 1 processes of 1 users.
Feb 25 17:26:48 laptop rtkit-daemon[972]: Successfully made thread 25490 of process 25447 (/usr/bin/pulseaudio) owned by '1000' RT at priority 5.
Feb 25 17:26:48 laptop rtkit-daemon[972]: Supervising 3 threads of 1 processes of 1 users.
Feb 25 17:26:48 laptop rtkit-daemon[972]: Supervising 3 threads of 1 processes of 1 users.
答案1
我尝试通过从 tty2 上的 gdb 连接到 ksmserver 来诊断这个问题，但不幸的是，当 ksmserver 死机时，该设置以某种方式设法使除 tty1 之外的所有 tty 崩溃！
但是，我发现应用程序崩溃的原因似乎是这个错误，这将在下一个 Qt 版本中修复。