Den 11.10.2021 21:51, skrev mnieuw--- via Cin:
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I've also got confirmed from AVerMedia that their CU511B USB3 (full HD) box mentioned just has been EOLed. Their only current solution with Linux driver (for Ubuntu) seems to be CL311M2 (full HD), which again is a PCIe grabber card. There are also USB HDMI video grabbers, e.g. https://www.youtube.com/watch?v=fltt5JhodCE (don't have any experience with those). But the german c't IT magazine has tested a number of cheap ones, see https://www.heise.de/tests/HDMI-USB-Videograbber-mit-Full-HD-Aufloesung-ab-7... . If you are interested, I can lookup the article.
Mat c't tested it successfully under Ubunto 20.04 . The devices implement box-standard UVC (USB Video Class) and UAC (USB Audio Class). Linux kernels 4.5 and later should be OK.
MatN
Yes, I've seen simple HDMI to USB video grabbers. But isn't these only digital to digital video without A/D converter, which for me is the most central part? Then it would be fine to get both HDMI and SD combined in a single device, like in the above more complex and costly AVerMedia device or also BM Declink, both with some HDMI (breakout) cable dongle for analog connections. Terje J. H