There’s a weird issue with #Discord (snap) on #Gnome that starts when using voice chat causing really bad lag and short freezes (input, rendering, everything) that became worse over time. My journal filled up with looping messages from appindicator causing this.

appindicatorsupport(at)rgcjonas.gmail.com[2514]: discord1, Impossible to lookup icon for 'discord1_12-panel'

Followed by a JS exception and trace:

JS ERROR: Exception in callback for signal: icon: Error: Argument 'filename' (type filename) may not be null

When I finally found the cause of this I went on looking for a solution and it seems like the unsung hero @3v1n0 fixed this long standing bug like 8 days ago: https://github.com/ubuntu/gnome-shell-extension-appindicator/commit/745c66a73e0a15a870e92e5aa461e2e9e646b899

Here is a more coherent report on this: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-appindicator/+bug/1849142

Fun thing is: I only have that indicator because Discord would eventually crash without trying to access this.

Now it’s patched and gone – back to #linuxgaming 😁