Aha, looking at issue #109 then checking journalctl I see:
Oct 09 09:34:34 homebase kernel: NVRM: API mismatch: the client has the version
340.107, but
NVRM: this kernel module has the version
340.106. Please
NVRM: make sure that this kernel module and
all NVIDIA driver
NVRM: components have the same version.
Oct 09 09:34:34 homebase kernel: NVRM: nvidia_frontend_ioctl: minor 255,
module->ioctl failed, error -22
I suspect that maybe an "apt update" ran which installed a new nvidia
driver but I haven't rebooted so the old one is still active? I'll try
rebooting to see if that helps.
I think it would be very helpful if libcogl could be enhanced to report
some sort of error rather than just dumping core...
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https://bugs.launchpad.net/bugs/1730241
Title:
Evolution segfaults when NVidia driver is installed but not used
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