Re: [PATCH v3 3/4] ACPI / video: Do not register backlight if win8 and native interface exists

2013-09-26 Thread Aaron Lu
On Wed, Sep 25, 2013 at 07:53:13PM +0200, Rafael J. Wysocki wrote: On Tuesday, September 24, 2013 05:47:31 PM Aaron Lu wrote: According to Matthew Garrett, Windows 8 leaves backlight control up to individual graphics drivers rather than making ACPI calls itself. There's plenty of evidence

[PATCH v3 3/4] ACPI / video: Do not register backlight if win8 and native interface exists

2013-09-25 Thread Aaron Lu
According to Matthew Garrett, Windows 8 leaves backlight control up to individual graphics drivers rather than making ACPI calls itself. There's plenty of evidence to suggest that the Intel driver for Windows [8] doesn't use the ACPI interface, including the fact that it's broken on a bunch of

Re: [PATCH v3 3/4] ACPI / video: Do not register backlight if win8 and native interface exists

2013-09-25 Thread Rafael J. Wysocki
On Tuesday, September 24, 2013 05:47:31 PM Aaron Lu wrote: According to Matthew Garrett, Windows 8 leaves backlight control up to individual graphics drivers rather than making ACPI calls itself. There's plenty of evidence to suggest that the Intel driver for Windows [8] doesn't use the ACPI