Electron apps seems to leave artifacts

[tim-kilian]

Platform

Arch Linux 5.16.3

Environment

xmonad

picom version

vgit-6a501

Configuration

shadow = true;
shadow-radius = 10;
shadow-offset-x = -10;
shadow-offset-y = -10;
shadow-color = "#0088cc"
shadow-exclude = [
  "!focused",
  "name = 'Notification'",
  "class_g = 'Conky'",
  "class_g ?= 'Notify-osd'",
  "class_g = 'Cairo-clock'",
  "class_g = 'jetbrains-idea'",
  "class_g = 'code-oss'",
  "class_g = 'Oblogout'",
  "_GTK_FRAME_EXTENTS@:c"
];

Steps of reproduction

1. Open an electron app (example vs-code)
2. Open another application (example tilix)
3. Wait for artifacts

Expected behavior

No artifacts

Current Behavior

Other details

Don't know if it happen with other then electron apps. Could be related to my shadow picom config.

[dccsillag]

I believe this should be solved once we merge #22.

But, just to check: do you still see these artifacts if you use the new glx backend and set use-damage = false;?

[tim-kilian]

Yes. There are still artifacts with those settings.

[dccsillag]

Are there artifacts in:

• This fork, on 6a50198,
• And on Fixes artifacts by correctly adding old window area to damage #22?

[tim-kilian]

• Similar artifacts in 6a50198,
  

• Less ugly, acceptable artifacts in Fixes artifacts by correctly adding old window area to damage #22
  

[tim-kilian]

I do experience a worse behavior on slower applications like electron ones and do not notice any artifacts on faster applications like a terminal or firefox.