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 bdcravens on Wednesday March 15, 2023 @09:35AM (#35168108)

> had not noticed that the laptop I chose was missing an essential feature : it did not have Display Port over USB C. Not being able to use my second external monitor on this new laptop felt like a huge downgrade from my previous one

Any DisplayLink hub will solve this problem. (That's what I did with the M1 Macbook Air) Probably not as fun as hacking on a Raspberry Pi, but a lot easier to find than a Raspberry Pi :-)

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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 @09:39AM (#35168165)

As I already mentioned in another comment, DisplayLink requires proprietary software on the host computer. I like my open source solution better ;)

And the part of your comment about having fun hacking on a RPi is point on!

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Re:Using a Raspberry Pi to add a second HDMI port to a laptop by eythian on Thursday March 16, 2023 @11:46AM (#35183482)

Note that DisplayLink is awful and should not be encouraged. It works on Linux with proprietary drivers, but badly and not natively (at least on Ubuntu) and will eat your CPU. It has issues on Macs that DRMed media in the browser won't display (cos the OS sees it as a screen recorder), and it will probably eat your CPU.

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Re:Using a Raspberry Pi to add a second HDMI port to a laptop by bdcravens on Thursday March 16, 2023 @01:45PM (#35185426)

I don't recall having those issues (I've since moved on to an M1 Pro and then an M2 Max that support multi-monitors), but I'm not necessarily surprised.

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Re:Using a Raspberry Pi to add a second HDMI port to a laptop by pcouy on Thursday March 16, 2023 @08:09PM (#35190809)

Lol, if the OS sees it as a screen recorder, it must be much closer to what I made than I initially thought !

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