Comment 10 for bug 2064291

Hi Bernard,

The crash seems to bring your system down before the logs are able to be written to disk, so there is no oops present in your dmesg.

Its pretty common. Would you be able to capture a kernel crashdump (kdump).

Follow the instructions in:

https://ubuntu.com/server/docs/kernel-crash-dump

All you really need to do is:

$ sudo apt install linux-crashdump

Say yes twice.

Then reboot.

Attempt to open app center or something to cause the crash.

When the system crashes, it will take a minute or so, as it copies the system memory to a file.

When the system comes back, see if there is a crashdump in /var/crash/<date>

If there is, see if there is a dmesg.log in that folder. If there is, upload that file. You don't have to upload the whole kdump.

Thanks,
Matthew