Affected version

Pop!_OS 19.10

GNOME 3.34

Appears in XOrg. I'm guessing also Wayland...?

Bug summary

I had lots of tabs open in Brave Browser, and was running VSCode. When I ran an intensive command (running mutation tests in the terminal) my desktop began to lag, then froze up completely. Cursor was unresponsive, function keys didn't work, shutting the computer didn't work... I had to completely shut down with the physical power button and then reboot.

The issue has occurred for me several times. Since my computer is frozen, I've never been able to open System Monitor and inspect processes. It seems to happen at times when there is high CPU/RAM usage

Steps to reproduce

Open a lot of browser tabs Open VSCode Mutation test a project Watch your desktop lag and then freeze up (becoming totally unresponsive)

What happened

GNOME completely froze up, permanently

What did you expect to happen

I expected GNOME to separate processes enough (and reserve some resources) that even when intensive tasks were being run, it wouldn't crash, or that at least my cursor and other basic functionality (like Alt+F2) would work.

Relevant logs, screenshots, screencasts etc.

I don't have any logs, but will willingly get some with some instructions.