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...
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. frontend_ ioctl: minor 255, module->ioctl failed, error -22
Oct 09 09:34:34 homebase kernel: NVRM: nvidia_
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...