window_border on results in blurred screen sharing in Slack

[rickythefox]

A bit of a weird issue here.

When yabai is configured with window_border on and you share you screen during a Slack call the whole screen is blurred. Setting window_border off removes the blur. This used to work fine in 4.x versions.

[cherche]

As of 5.x, window border also includes a blur behind each window. This is only really noticeable with non-opaque windows, so if you've left active_window_opacity and normal_window_opacity as 1.0, you likely would not have noticed this underlay.

Try setting yabai -m config window_border_blur off. I'm not familiar enough with yabai to know if it's possible to auatomatically disable window_blur for select windows using rules.

[rickythefox]

@cherche thanks, that worked! Would be nice to be able to disable the blur for select windows, like slack screen sharing.

[cherche]

@rickythefox Just did a quick read of the docs and there is a way to automate this with rules, as long as it's possible to target the Slack screen sharing window:

yabai -m rule --add app="^Slack$" title="Window Title" border=off

You'll need to query windows (yabai -m query --windows) to see what info would uniquely identify Slack's screen sharing window.

[prdanelli]

I have a similar issue to this, but for MacOS's Mission Control (Show open windows).

Borders on:

Borders off:

I have a shortcut to toggle the borders, but for stuff like screensharing in Slack, using mission control etc it feels like it might constitute bug.

[Allaman]

This happend to me when recording my screen with CleanshotX as well! yabai -m config window_border_blur off or yabai -m config window_border off solves the issue.

[dominiklohmann]

You should be able to detect these windows and to disable borders for them using a rule¹, e.g.,

# Disable borders for all Slack windows that are not standard windows.
yabai -m rule--add app=^Slack$ subrole!=AXStandardWindow border=off

If you want to investigate this a bit further, I recommend using yabai -m query --windows to understand the unique characteristics of windows causing you issues. The problem here really is Slack creating a fully transparent window when screen sharing; yabai cannot possibly account for all edge cases like this.

Footnotes

1. https://github.com/koekeishiya/yabai/blob/master/doc/yabai.asciidoc#rule ↩

[ArtemSmaznov]

You should be able to detect these windows and to disable borders for them using a rule1, e.g.,

# Disable borders for all Slack windows that are not standard windows.
yabai -m rule--add app=^Slack$ subrole!=AXStandardWindow border=off

If you want to investigate this a bit further, I recommend using yabai -m query --windows to understand the unique characteristics of windows causing you issues. The problem here really is Slack creating a fully transparent window when screen sharing; yabai cannot possibly account for all edge cases like this.

Footnotes

1. https://github.com/koekeishiya/yabai/blob/master/doc/yabai.asciidoc#rule ↩

Looks like the transparent window is AXStandardWindow as well - I get 2 extra slack entries in the query. Or maybe those are something else and the transparent one is not detected as the extra ones have level that is not 0 as opposed to the main window but yabai -m rule --add app="Slack" level!=0 border=off doesn't affect the screenshare. Guess will need to play around with different parameters some more

[ricardoraposo]

I also managed to solve this problem by turning off the window_topmost setting

yabai -m config window_topmost               off

[koekeishiya]

Borders have been removed in the latest release (v6.0.0) (#1889) because of multiple issues present in both Ventura and Sonoma.

window_topmost has also been removed, and equivalent functionality has been introduced in a robust way #1887