Messages in this thread | | | Date | Fri, 17 Feb 2012 19:37:42 +0000 | From | Matthew Garrett <> | Subject | Re: [PATCH 1/3] ACPI: Provide config option to disable BIOS brightness changes on power events |
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On Fri, Feb 17, 2012 at 08:27:04PM +0100, Pavel Machek wrote: > Hi! > > > The default ACPI behaviour is to instruct the BIOS to automatically change > > brightness on power events. This may be undesirable for distributions who > > manage brightness in userspace. Provide a config option that disables this > > behaviour and leaves brightness control up to the OS. > > Should this be configured during runtime? > > Like... when userspace power management starts, it disables this?
This is ACPI-specific. It's not emulated by any of the other backlight drivers. There's no terribly easy way to have generic userspace handle it.
-- Matthew Garrett | mjg59@srcf.ucam.org
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