Quote from: _MT_ on July 10, 2020, 10:29:14
Have you tried swapping the power supplies? My best guess would be a firmware issue in the XPS 17 - it probably doesn't identify the power supply correctly as their own proprietary 130 W and instead behaves like it's an ordinary 100 W supply.
definitely has to be firmware related, unlike the BS i just read at pcworld: "Just got off the phone with support. CONFIRMED: the XPS 17 battery drain is a HARDWARE issue and NOT a firmware issue," HistoGraham wrote. "
have a 5576 here, replaced 130W with 240W, overclocked GPU pulls the most. no way to get more than 140W from wall with battery in, if i detach battery it goes up to 220W from wall.
in case of most dell laptops it is bq24780S in charge and there are suppose to be SMBus way of disabling hybrid power mode. at least one thing i could do via some dell battery software is prevent it from charging until next reboot - sure other commands that charger IC specifies in its datasheet would have an effect too