[Bug 204807] Hardware monitoring sensor nct6798d doesn't work unless acpi_enforce_resources=lax is enabled

bugzilla-daemon
2021-11-05T14:23:24Z

--- Comment #154 from Eugene Shalygin (eugene.shalygin@gmail.com) ---
(In reply to Olli Asikainen from comment #153)
> Yeah, it's old and suffers from the same bug, but I reckon supporting this
> would be a completely different story. Thanks for your answer Eugene and
> sorry for the noise.

This firmware seem to be using ACPI mutex named \_SB_.PCI0.LPCB.SIO1.MUT0 to
guard access to the nct chip registers.

I wonder, can we rely on these mutexes, whose names seem to be quite stable, as
well, instead of the WMI functions? Then accessing nct registers would become
simpler: lock ACPI mutex if needed, access registers always in the regular way,
unlock the mutex.