> From the hardware point of view the only thing which comes to mind is > that you somehow triggered the ESD protection. > > I assume you can rule out an unstable physical connection (because it > works on windows), so the only thing left is that there is something > very very badly going wrong with power management. > > Have you "tuned" the power tables on the board somehow? Nope, not at all. In windows, I actually had noticed that before I had installed the Asrock utility for the card, it was staying at its lowest clock. I had the Radeon / AMD drivers installed of course, but not the vendor tools for the board. Once I installed that, it started automatically going to higher power state as the load varied. And it's set to the "default" profile. On linux I haven't done anything. Just a fresh Ubuntu 19.10 install with amdgpu loaded. Not sure if I have anything else to do. I'm not even sure how to monitor the card frequency / voltage on linux. > Or maybe multiple GPUs connected to the same power supply? That machine has another GPU, a NVidia one in the first x16 slot. The Nvidia GPU has a PCIe power connector going to it. The RX 560 board ( https://www.asrock.com/Graphics-Card/AMD/Phantom%20Gaming%20Radeon%20RX560%202G/ ) doesn't have any additional PCIe power input, so it gets all its power from the PCIe slot itself. The PC has a 650W good quality Corsair power supply, and during all theses tests the NVidia GPU was idle (not even a xserver launched on it or nothing), and the fan PSU didn't even spin up (it doesn't spin if power is < 350 W), so I think it has plenty of margin. Cheers, Sylvain _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
