[ksplash] [Bug 422904] New: [NVIDIA][Wayland] ksplashqml crashes with SIGSEGV

[Guilherme Silva]

https://bugs.kde.org/show_bug.cgi?id=422904

            Bug ID: 422904
           Summary: [NVIDIA][Wayland] ksplashqml crashes with SIGSEGV
           Product: ksplash
           Version: 5.19.0
          Platform: openSUSE RPMs
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: oguilherme at protonmail.com
  Target Milestone: ---

SUMMARY
After I log in to a Plasma Wayland session on NVIDIA, _sometimes_ I'd get a
dark screen, with only the mouse cursor being displayed. However, trying to
double or right click does nothing, so I essentially end up with a broken
Plasma session, with the only option being rebooting my computer.
Unfortunately, though, I haven't found a consistent way to reproduce this yet.

Additionally, a bunch of KDE components seem to fail after ksplashqml crashes
(though I'm not experienced enough on debugging to precisely confirm the crash
order of these compoenents). coredumpctl shows me this:

$ coredumpctl list --since=today
Sat 2020-06-13 03:49:31 -03   17209  1000   100   6 present  
/usr/bin/kglobalaccel5
Sat 2020-06-13 03:49:45 -03   17339  1000   100  11 present  
/usr/bin/ksplashqml
Sat 2020-06-13 03:49:46 -03   17447  1000   100   6 present  
/usr/lib64/libexec/kactivitymanagerd
Sat 2020-06-13 03:49:47 -03   17326  1000   100   6 present   /usr/bin/Xwayland

In my next e-mails, I'll be attaching full gdb backtraces (with symbols) for
all these processes, starting from the lowest pid.

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20200611
KDE Plasma Version: 5.19.0
KDE Frameworks Version: 5.70.0
Qt Version: 5.15.0
Kernel Version: 5.6.14-1-default
OS Type: 64-bit
Processors: 4 × Intel® Core™ i5-3570K CPU @ 3.40GHz
Memory: 7,7 GiB of RAM
Graphics Processor: GeForce GTX 660/PCIe/SSE2


ADDITIONAL INFORMATION
NVIDIA proprietary driver version 440.82

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