alt Hacker NewsPackages existing and the software actually working are very different things. You can run rocm on unsupported GPUs like a 780m, but as soon as you hit an issue you are out of luck. And you’ll hit an issue.
For example, my 780m gets 1-2 inferences from llama.cpp before dropping off the bus due to a segfault in the driver. It’s a bad enough lockup that linux can’t cleanly shutdown and will hang under hard rebooted.
The 780m is an integrated GPU. I specified discrete GPUs because that's what I have tested and can confirm will work.
I have dozens of different AMD GPUs and I personally host most of the Debian ROCm Team's continuous integration servers. Over the past year, I have worked together with other members of the Debian project to ensure that every potentially affected ROCm library is tested on every discrete consumer AMD GPU architecture since Vega whenever a new version of a package is uploaded to Debian.
FWIW, Framework Computers donated a few laptops to Debian last year, which I plan to use to enable the 780m too. I just haven't had the time yet. Fedora has some patches that add support for that architecture.