Pantheon: Session Crash when i try to take a screenshot

[davidak]

Describe the bug

When i try to take a screenshot of an area (STRG + PRINT), i hear the bell notification sound (that also comes when the disk is full) and nothing more happens (no screenshot). The third time i tried, the whole session crashed!

I actually have a video of it: https://www.youtube.com/watch?v=uSOar6HBNTs

Steps To Reproduce

Steps to reproduce the behavior:

1. take screenshot with STRG + PRINT (not tested other methods)
2. ???
3. session crash

Expected behavior

actually taking screenshot

Screenshots

that's the issue ;)

Additional context

Issue appeared after #139163

Notify maintainers

@bobby285271

can you reproduce or should i get a log?

Metadata

• system: "x86_64-linux"
• host os: Linux 5.14.7, NixOS, 21.11 (Porcupine)
• multi-user?: no
• sandbox: yes
• version: nix-env (Nix) 2.3.15
• channels(root): "home-manager-21.05, nixos-21.05.1574.4181644d09b, nixos-hardware, nixos-unstable-21.11pre302615.967d40bec14"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
# a list of nixos modules affected by the problem
module:

[bobby285271]

The issue is introduced in elementary/gala: Add initial support for Mutter 40 (though we are using Mutter 3.38).

I will try to patch gala if possible, or revert gala to a legacy version when I failed to do so.

---

Can confirm that the issue can be reproduced and by reverting the elementary/gala: Add initial support for Mutter 40 change the issue can be fixed. I will submit a PR in 48 hours.