AMD Finally Flipping On ASPM For Navi 1x To Lower Power Consumption

[khnazile]

ASPM is not implemented for gfx9 parts yet.

Then it's something else, but symptoms are: GPU performance is reduced for a few seconds, then screen goes dark, kernel starts complaining about PCIe being stuck in 1.0 mode, gpu reset never succeeds. Alternative path: GPU performance reduced, screen goes dark, and after a few seconds some watchdog (perhaps, motherboard?) reboots the computer. No log, no error messages, just 3 beeps from a speaker.

Forcibly disabling ASPM in kernel parameters makes it happen less often.

[agd5f]

Then it's something else, but symptoms are: GPU performance is reduced for a few seconds, then screen goes dark, kernel starts complaining about PCIe being stuck in 1.0 mode, gpu reset never succeeds. Alternative path: GPU performance reduced, screen goes dark, and after a few seconds some watchdog (perhaps, motherboard?) reboots the computer. No log, no error messages, just 3 beeps from a speaker.

Forcibly disabling ASPM in kernel parameters makes it happen less often.

The sbios on some systems may enable ASPM on some devices. The kernel by default leaves the ASPM configuration as configured by the bios. You can also force it on or off. The generic ASPM handling in the sbios or kernel may not be optimal on some devices.

[timofonic]

This is good news but when is AMD going to make an app on Linux to officially control thermals

I agree.

Or (more) active with own developers to participate on one of these tools. An agnostic tool would be a lot better, IMHO.

https://github.com/Maldela/Fancontrol-GUI

https://github.com/braph/nbfc-linux

https://github.com/hirschmann/nbfc

https://github.com/lich426/FanCtrl

https://github.com/hbriese/fancon

https://github.com/grmat/amdgpu-fancontrol/

https://github.com/vmatare/thinkfan

And never need to do this weird stuff: https://www.cyberciti.biz/faq/how-to...r-cpu-and-gpu/

A systemd module for power, fan and such would be nice.

[khnazile]

The sbios on some systems may enable ASPM on some devices. The kernel by default leaves the ASPM configuration as configured by the bios. You can also force it on or off. The generic ASPM handling in the sbios or kernel may not be optimal on some devices.

I've already tried replacing motherboard, RAM, and CPU. It did not help me with random GPU hangs. The only thing that helps is downgrading to Polaris. Ofc, there are some ways to make it crash too, but at least they are predictable and you can avoid those use-cases. Perhaps I should but the Vega card into a windows machine and forget about it.

[kokoko3k]

Does one of the following have the same effect right now even on older kernels?

echo"powersave"> /sys/module/pcie_aspm/parameters/policy
echo"powersupersave"> /sys/module/pcie_aspm/parameters/policy

[torsionbar28]

I've already tried replacing motherboard, RAM, and CPU. It did not help me with random GPU hangs. The only thing that helps is downgrading to Polaris. Ofc, there are some ways to make it crash too, but at least they are predictable and you can avoid those use-cases. Perhaps I should but the Vega card into a windows machine and forget about it.

Strange, must be some corner case, odd hardware combo, etc. I've put many hours of Linux gaming on an Rx 480, Vega 56, and now an Rx 5600 XT, without experiencing anything like that.