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345 points splitbrain | 2 comments | 14 Oct 24 13:11 UTC | HN request time: 0.001s | source

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IceDane ◴[14 Oct 24 17:10 UTC] No.41839538[source]▶

You can literally do this with just xrandr.

xrandr --setmonitor screenshare 2560/1x1440/1+0+0 none

1. Liskni_si ◴[16 Oct 24 00:57 UTC] No.41854641[source]▶

To make the selection interactive, the command becomes:

geo=$(slop -f '%w/1x%h/1+%x+%y') && xrandr --setmonitor screenshare "$geo" none

replies(1): >>41854695 #

2. Liskni_si ◴[16 Oct 24 01:08 UTC] No.41854695[source]▶

Also looks like one can just do

xrandr --delmonitor screenshare

before this to seamlessly update the shared region — Chrome will immediately pick up the change and continue sharing the updated virtual monitor.

Show HN: X11 tool to share a screen area in any video meeting