On Fri, Nov 22, 2019 at 10:07 AM Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote: > > On Fri, Nov 22, 2019 at 1:13 AM Karol Herbst <kherbst@xxxxxxxxxx> wrote: > > > > so while trying to test with d3cold disabled, I noticed that I run > > into the exact same error. > > Does this mean that you disabled d3cold on the GPU via sysfs (the > "d3cold_allowed" attribute was 0) and the original problem still > occurred in that configuration? > yes. In my previous testing I was poking into the PCI registers of the bridge controller and the GPU directly and that never caused any issues as long as I limited it to putting the devices into D3hot. > > And I verified that the > > \_SB.PCI0.PEG0.PG00._STA returns 1, which indicates it should still be > > turned on. > > I don't really understand this comment, so can you explain it a bit to > me, please? > that's the ACPI method to fetch the "status" of the power resource, it should return 0 when the device was powered off (the GPU) and 1 otherwise.
