RPi5 Penta hat top board Fan On and Button Issues

[acraigl]

I just got and installed the top board for my RPi 5 Penta Hat NAS. All went smoothly, the fan and the LED work. But even after modifying the rock-pi-penta.conf file, and restarting the service the fan continues to run (loudly) and while the button does work to slide info screens, double-clicking and long-pressing do nothing – even when configured to power off the fan.

I tried searching extensively (apologies if I missed the answer) but didn’t see a definitive way to address these problems. Any advice or direction would be welcomed as it’s now so much louder than my pre-top board setup. Thanks in advance!

[acraigl]

Found it! This modification worked for me

Stumbling fan if playing video on Plex in a converted quality (Software PWM issue)

Disclaimer: This demonstrates only a temporary workaround, waiting for hardware PWM on Pi5 gets ready The issue is that on expected fanless operation, the fan stumbles and spins slowly when Plex plays a reduced quality video that requires conversion. You might have noticed as well that sometimes suddenly the fan starts spinnig for a fraction of a second without any reason. I found a way to workaround it by forcing the software PWM to 0 for the case of zero duty. For that I modified the tr fu…

Thank you @michael!

[acraigl]

I want to be clear that the while the fan is now respecting the temps I’ve modified in the .conf file, the button still isn’t doing what it should, but that’s a minor issue for me now that the fan is mostly silent. I just wanted a way to shut off the fan prior to the fix. Now that it’s working, I probably won’t have much interest in playing with the button (but I still think it should work as advertised )

[acraigl]

And since I’m enjoying this conversation with myself…
Since this change the fan runs at 100% when the unit is shutdown, which is weird. Since it’s a NAS I don’t expect to turn it off with any regularity, but just another Radxa-ism to report.