On Fri, 10 Feb 2017 at 10:46:08 +0100, Peter Hessler wrote: > On 2017 Feb 10 (Fri) at 11:52:20 +1100 (+1100), Jonathan Gray wrote: > :On Thu, Feb 09, 2017 at 06:39:13PM -0600, joshua stein wrote: > :> I have no idea why there are chickens involved, but this fixes the > :> problem on at least the MacBookAir7,1 (Broadwell) where upon S3 > :> resume, the backlight value is treated as 0 or 100 despite reporting > :> intermediate values, so if the backlight value was anything other > :> than 100 at suspend time, the screen will stay off upon resume. > : > :Chicken bits are overrides for functions like clock gating, if it turns > :out there is a hardware bug in a particular feature these bits are used > :to disable them. > : > :This diff seems reasonable but it would be nice to get some tests > :on non-apple broadwell hardware. > : > > Tested on a broadwell Thinkpad x250, seems fine. Changed the brightness > to 40%, then did a few suspend-resumes.
Anyone else have any reports testing this diff?
