Thanks for the hint, great to see.
I think I found the bug - and yes, I believe it to be a bug.
Assuming TYPE_FPPT counts and is limited by all four checks here.
update_os_power_slider should be fine in my case, 65W.
update_adapter_power_limit also seems to be fine, 65W.
update_safety_power_limit I don’t quite understand from a cursory look.
But update_thermal_power_limit seems to contain a bug where, in the no-dGPU case, it limits the power to 30W if you have anything less than 80W of AC power, despite the DC case following the update_os_power_slider:
This matches exactly what I observed, in that with DC, power slider works, with AC, it doesn’t have any effect.
Thanks for the hint! I’ll see if I can compile and flash mine, wish me luck.