Re: acpi_backlight=vendor no longer working around buggy laptop fromhell

[Cristian RodrÃguez]

El 28/07/13 21:05, Aaron Lu escribiÃ:

> So does adding nox2apic still work for you with latest Linus' tree?

Yes, nox2apic makes things work again, but has always puzzled me why 
acpi_backlight=vendor made it work previously with no apparent bad side 
effect..

> > The only possible hint in the logs I could ever find is:
> >
> > [    3.844586] [Firmware Bug]: ACPI(PEGP) defines _DOD but not _DOS
>
> This is subtle, meaning the BIOS doesn't provide the required method.

Yeah, I wonder what Windows 7/8 is doing..does not seem to care about that..


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