http://bugzilla.kernel.org/show_bug.cgi?id=12174
------- Comment #2 from tr...@suse.de 2008-12-18 05:15 -------
I expect the NVID is an ACPI graphics dummy device if an external nvidia card
is added to the board.
Since .28 these dummy devices are ignored.
The ACPI graphics device which should get used on your machine is:
Device (GFX0)
{
Name (_ADR, 0x00020000)
(compare _ADR with lspci above, it matches the slot (00:02)
This device has opregion support which also got added with .28:
drivers/gpu/drm/i915/i915_opregion.c
Strange is that the NVID device has brightness change functions (_BCM,..),
but the GFX0 has not.
Better provide acpidump, maybe these are hidden in a SSDT.
Best you also update your BIOS first (or even better, provide acpidump, then
update, then provide new acpidump. It could be interesting for someone what
they changed in their ACPI tables...).
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