Hi Christian, Thanks for the reply. On Mon, 14 Feb 2022, Christian König wrote: > well that sounds strongly like some hardware problem. What power supply do you > have in that system? > Right now, I've got it hooked up to a Corsair VX550W. It's on a test bench so the only things hanging off the mobo at the moment are the GPU and a pair of NVMe drives. I'm also testing this system with a RTX 2060 Super and I have no problems with that card, even under heavy load. > From your dmesg it looks like the kernel driver actually initializes fines. So > my educated guess is that as soon as the desktop tries to draw we suck to much > power and go into brown out reset. > I'm not even trying for a desktop yet, it's currently booting to runlevel 3 :-) As mentioned above, the 2060 does just fine and its power needs are significantly higher than that of the 6500. It's possible that it's something with my particular motherboard. Michael Larabel over at Phoronix did some performance testing[1] with this same model card running on Ubuntu 22.04, seemingly without problem. Do you have any suggestions for further troubleshooting? Thanks, -- Cal Peake [1] https://www.phoronix.com/scan.php?page=article&item=radeon-rx6500xt-linux
