[coreboot] Powersavings: 8W of difference between bios and coreboot
Felix Held
felix-coreboot at felixheld.de
Fri Nov 18 09:43:17 CET 2016
Hi!
> BIOS: 11W Coreboot: 19W [...]
Can you also measure the power consumption with the GPU enabled under
the vendor firmware?
> and no, the NVidia GPU was not enabled in corebooy. Both results were
> on integrated GPU only
Have you only disabled the nVidia GPU in devicetree.cb (that will only
disable the PCIe interface on the CPU side) or have you also disabled
the GPU power supply via the GFXCORE_ON_D signal? Since that signal is
driven by the power management companion chip (Thinker-1), you probably
have to talk to the EC to do that.
Regards
Felix
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