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Why would you need to do this? USB to HDMI adapters exist and now that USB-C is mainstream there are adapters for that too and significantly cheaper than a rasp
by ar9av 4y ago
Why would you need to do this? USB to HDMI adapters exist and now that USB-C is mainstream there are adapters for that too and significantly cheaper than a raspberry pi. One use I would like to see is a pi convert an HDMI signal to ethernet and convert it on the other side with a second pi.
Lol basically any DisplayLink adapter would work. Way cheaper.
- pcouy 4y agoLol this is copy pasted from a comment on reddit...
- coreyisthename 4y agoFor what it’s worth, I can’t get any adapters to work on my ThinkPad and haven’t been able to resolve it for a long time. My only HDMI port is broken. I’m going to try this with one of the Pi’s I have laying around. I’m excited to see if I can get it to work!
- pcouy 4y agoI'm excited as well to see if you can get it to work!
- RunSet 4y agoSince you mention Thinkpad, here is a personal pet peeve. A company called StarTech makes ExpressCard devices and USB devices. They make: * An ExpressCard HDMI capture device (no longer manufactured) that sits flush with the body of the Thinkpad. [0] * ExpressCard USB3 peripherals that adds one or two USB ports to the Thinkpad and sits flush with the body of the Thinkpad. [1] * USB3 to HDMI output devices that leave an unsightly dongle protruding from the Thinkpad. [2] So, what StarTech does not make (and my pet peeve): An ExpressCard device that adds an HDMI output port to a laptop and sits flush with the laptop's body. Note that such a product would seem to be a trivial combination of their existing products. I would also expect that such a device would be cheaper to manufacture than the equivalent capture device. [0] https://www.startech.com/en-us/audio-video-products/echdcap https://www.startech.com/en-us/audio-video-products/echdcap [1] https://www.startech.com/en-us/cards-adapters/ecusb3s254f https://www.startech.com/en-us/cards-adapters/ecusb3s254f [2] https://www.startech.com/en-us/display-video-adapters/usb32hdes https://www.startech.com/en-us/display-video-adapters/usb32h...
- johndough 4y agoOddly enough, the comment seems to be a combination of comments of two different reddit accounts: https://old.reddit.com/r/programming/comments/11r9osx/using_a_raspberry_pi_to_add_a_second_hdmi_port_to/jc8g1l9/ https://old.reddit.com/r/programming/comments/11r9osx/using_... https://old.reddit.com/r/programming/comments/11r9osx/using_a_raspberry_pi_to_add_a_second_hdmi_port_to/jc8uso0/ https://old.reddit.com/r/programming/comments/11r9osx/using_...
- pcouy 4y agoYeah I noticed that. The "Lol" was not even in any of the original comments. Very odd indeed
- johndough 4y agoI bought one of those USB-C to HDMI adapters just to find out that the USB-C ports of my desktop computer, my laptop and my phone do not support HDMI over USB-C.
- justinsaccount 4y agoUSB-C to HDMI adapters are not the same as display link. DisplayLink is a janky proprietary virtual framebuffer thing that is pretty similar to the linked project.
- MayeulC 4y agoSome devices only have DisplayPort alternate mode output, so may need a cable (or adapter) that does the DP->HDMI conversion. Assuming your devices support DP Alt. mode. These are active adapters.
- pcouy 4y agoSame situation I was in with my new laptop, except that I already had USB C docks lying aroud