Using a Raspberry Pi to add a second HDMI port to a laptop

Re:Using a Raspberry Pi to add a second HDMI port to a laptop by emersion on Wednesday March 15, 2023 @11:11AM (#35169525)

There is an upstream KMS driver for GUD: https://github.com/notro/gud

It works by connecting the Pi via USB.

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Re:Using a Raspberry Pi to add a second HDMI port to a laptop by MayeulC on Wednesday March 15, 2023 @11:25AM (#35169764)

Yeah, I immediatly thought of this. They even have pre-built images.

I wonder what OP uses as a DE. In sway (and presumably other wlroots-based compositors) it's very easy (one command) to add a headless output.

Edit, as I saw your username: sadly it's undocumented in the man page, IIRC :P

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Re:Using a Raspberry Pi to add a second HDMI port to a laptop by pcouy on Wednesday March 15, 2023 @11:52AM (#35170197)

Somehow I did not come across this when researching existing solutions. Looks interesting though, I'll look into it

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