[kde] [Bug 423555] New: Reducing # of monitors causes kdeinit to core and login not to complete or hang.

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=423555

            Bug ID: 423555
           Summary: Reducing # of monitors causes kdeinit to core and
                    login not to complete or hang.
           Product: kde
           Version: unspecified
          Platform: Other
                OS: Other
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: whtenben at up.com
  Target Milestone: ---

SUMMARY
When reducing the monitors from 6 to 2, KDE would not complete login to the
workspace after password had been completed.  Sound would load and then hang at
the icons loading at the bottom left of the monitor.

STEPS TO REPRODUCE
1. Unplug 4 of the 6 monitors, leaving only 2
2. Reboot
3. Login with credentials

OBSERVED RESULT
The sound would notify and the speakers would notify of login.  However the
screen would not complete the login to the workspace.  The icons loading in the
lower left hand screen were stuck on the KDE icons.

EXPECTED RESULT
Login

SOFTWARE/OS VERSIONS

CentOS Linux release 7.7.1908 (Core)
kernel-3.10.0-1062.4.1.el7.x86_64  

Linux/KDE Plasma: 

(available in About System)
KDE Plasma Version: 4.10.5-5.el7
KDE Frameworks Version: 4.14.8-11.el7_7
Qt Version: 

ADDITIONAL INFORMATION

Good log:
6 monitor /var/log/messages -->

Jun 25 10:36:49 MYMACHINE org.kde.powerdevil.backlighthelper: no kernel
backlight interface found
Jun 25 10:36:49 MYMACHINE dbus[1767]: [system] Successfully activated service
'org.kde.powerdevil.backlighthelper'
Jun 25 10:36:54 MYMACHINE NetworkManager[1801]: <info>  [1593099414.9926]
agent-manager: req[0x564331135ad0, :1.36/org.kde.networkmanagement/0]: agent
registered
Jun 25 10:36:59 MYMACHINE spice-vdagent[3617]: Cannot access vdagent virtio
channel /dev/virtio-ports/com.redhat.spice.0
Jun 25 10:36:59 MYMACHINE systemd: Started PC/SC Smart Card Daemon.

Bad log:
2 monitor /var/log/messages -->

Jun 25 10:48:07 MYMACHINE org.kde.powerdevil.backlighthelper: no kernel
backlight interface found
Jun 25 10:48:07 MYMACHINE dbus[1749]: [system] Successfully activated service
'org.kde.powerdevil.backlighthelper'
Jun 25 10:48:11 MYMACHINE abrt-hook-ccpp: Process 4588 (kdeinit4) of user 0
killed by SIGSEGV - dumping core
Jun 25 10:48:12 MYMACHINE kernel: plasma-desktop[4597]: segfault at 0 ip
00007f76f2c1785c sp 00007ffd6f2cd220 error 4 in
plasma_applet_tasks.so[7f76f2c07000+1e000]
Jun 25 10:48:12 MYMACHINE abrt-hook-ccpp: Process 4597 (kdeinit4) of user 0
killed by SIGSEGV - ignoring (repeated crash)
Jun 25 10:48:13 MYMACHINE abrt-server: Generating core_backtrace
Jun 25 10:48:16 MYMACHINE abrt-server: Duplicate: core backtrace
Jun 25 10:48:16 MYMACHINE abrt-server: DUP_OF_DIR:
/var/spool/abrt/ccpp-2020-06-24-10:57:10-3462
Jun 25 10:48:16 MYMACHINE abrt-server: Deleting problem directory
ccpp-2020-06-25-10:48:11-4588 (dup of ccpp-2020-06-24-10:57:10-3462)
Jun 25 10:48:16 MYMACHINE dbus[1749]: [system] Activating service
name='org.freedesktop.problems' (using servicehelper)
Jun 25 10:48:16 MYMACHINE dbus[1749]: [system] Successfully activated service
'org.freedesktop.problems'
Jun 25 10:48:22 MYMACHINE spice-vdagent[4688]: Cannot access vdagent virtio
channel /dev/virtio-ports/com.redhat.spice.0
Jun 25 10:48:22 MYMACHINE systemd: Started PC/SC Smart Card Daemon.

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