Messages in this thread | | | Date | Tue, 3 Jan 2012 22:19:54 +0000 | From | Matthew Garrett <> | Subject | Re: [PATCH] acpi/video: Don't restore backlight to 0 at boot time |
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ACPI arguably does define 0 as being off (this is exceedingly poorly defined), but I'm not entirely happy with this - the firmware makes its behaviour conditional on the OS version. I'd really like to see an updated version of the Intel opregion spec to get a better idea of what we're meant to be doing here, but the last one made public was ancient.
-- Matthew Garrett | mjg59@srcf.ucam.org
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