He's experiencing a known HW issue, most likely. There's a manual workaround for now: https://xnux.eu/log/#045

I'll implement a SW workaround eventually, but I'm still recuperating a bit from the work on the Pinephopne keyboard. Once it's released, donations will hopefully increase a bit again, and I'll be able to do more development other than a kernel maintenance.

Now there's also Pinephone Pro and Quartz64 based router sitting on my table which I'm mostly playing with these days, so I'm a bit torn on where to focus my energy next. :)