[kde] [Bug 483312] Crash UI after screen goes black

[Ali]

https://bugs.kde.org/show_bug.cgi?id=483312

--- Comment #2 from Ali <fakhamati at gmail.com> ---
(In reply to Nicolas Fella from comment #1)
> If something crashed, we need a backtrace of it so we can figure out what's
> going on. Can you please attach a backtrace of the crash using the
> coredumpctl command-line program, as detailed in
> https://community.kde.org/Guidelines_and_HOWTOs/Debugging/
> How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl?
> 
> Thanks!

It doesn't exactly crash.
The screen flashes and then goes completely black, and only the mouse cursor
remains, and I have to reboot.
I typed this command and it had this output. How do I get the log exactly?

$ coredumpctl --reverse
TIME                           PID  UID  GID SIG     COREFILE     EXE          
                                          SIZE
Wed 2024-03-13 11:31:31 +0330 1847    0    0 SIGSEGV inaccessible
/snap/cups/1024/sbin/cups-proxyd                         n/a
Wed 2024-03-13 11:29:06 +0330 1840    0    0 SIGSEGV inaccessible
/snap/cups/1024/sbin/cups-proxyd                         n/a
Wed 2024-03-13 11:21:45 +0330 7921 1000 1000 SIGABRT present     
/usr/lib/x86_64-linux-gnu/libexec/org_kde_powerdevil  967.9K
Wed 2024-03-13 11:21:44 +0330 7766 1000 1000 SIGABRT present     
/usr/lib/x86_64-linux-gnu/libexec/org_kde_powerdevil  967.1K
Wed 2024-03-13 11:21:44 +0330 7639 1000 1000 SIGABRT present     
/usr/lib/x86_64-linux-gnu/libexec/org_kde_powerdevil  968.7K
Wed 2024-03-13 11:21:43 +0330 7504 1000 1000 SIGABRT present     
/usr/bin/plasmashell                                 1016.0K
Wed 2024-03-13 11:21:43 +0330 7506 1000 1000 SIGABRT present     
/usr/lib/x86_64-linux-gnu/libexec/org_kde_powerdevil  967.0K
Wed 2024-03-13 11:21:43 +0330 7439 1000 1000 SIGABRT present     
/usr/bin/plasmashell                                 1016.4K
Wed 2024-03-13 11:21:43 +0330 7443 1000 1000 SIGABRT present     
/usr/lib/x86_64-linux-gnu/libexec/org_kde_powerdevil  967.2K
Wed 2024-03-13 11:21:08 +0330 1843    0    0 SIGSEGV inaccessible
/snap/cups/1024/sbin/cups-proxyd                         n/a

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