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Re: linux-next 20160512 - ACPI issue with screen brightness

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On Tue, 17 May 2016 22:50:11 +0200, "Rafael J. Wysocki" said:
> On Tue, May 17, 2016 at 8:41 PM, Valdis Kletnieks <Valdis.Kletnieks@vt.edu> wrote:
> > next-20160512 sets the screen brightness to about 40%-ish or so, rather
> > than the 100% intensity I want.
> >
> > Dell Latitude E6530 laptop.
> >
> > git bisect tells me:
> >
> > 059500940defe285222d3b189b366dfe7f299cae is the first bad commit
> > commit 059500940defe285222d3b189b366dfe7f299cae
> > Author: Aaron Lu <aaron.lu@intel.com>
> > Date:   Wed Apr 27 20:45:04 2016 +0800
> >
> >     ACPI/video: export acpi_video_get_levels
> >
> >     The acpi_video_get_levels is useful for other drivers, i.e. the
> >     to-be-added int3406 thermal driver, so export it.
> >
> >     Signed-off-by: Aaron Lu <aaron.lu@intel.com>
> >     Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> >
> > :040000 040000 24f4f5abe8beda2fa219dee7549faacc2f63e29fdfbe3a3bb4f58d82d5be768263d91172276fed98 M      drivers
> > :040000 040000 603ffbf36e76717fe4f4ecb0418c9dbc59c76e25a559bcd81c949a6471ffd045866df9b4e3fa4406 M      include
> >
> >
> > but I've stared at the code and don't see what would do this....
>
> Please try to check out the acpi-video branch from linux-pm.git and
> see if the problem is present then.  If it is, please revert all of
> the top-most commits up to and including the above one and see if the
> problem goes away.

Put this one in the "things that go bump in the night" pile - the problem
doesn't manifest on next-20160519, even though the commit I bisected to
is in the tree for today, and I don't see any obvious smoking guns to
have fixed it in the past week's worth of 'git log'....

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linux-next 20160512 - ACPI issue with screen brightness Valdis Kletnieks <Valdis.Kletnieks@vt.edu> - 2016-05-17 20:50 +0200
  Re: linux-next 20160512 - ACPI issue with screen brightness "Rafael J. Wysocki" <rafael@kernel.org> - 2016-05-17 23:00 +0200
    Re: linux-next 20160512 - ACPI issue with screen brightness Valdis.Kletnieks@vt.edu - 2016-05-20 01:00 +0200
      Re: linux-next 20160512 - ACPI issue with screen brightness Valdis.Kletnieks@vt.edu - 2016-05-20 05:10 +0200
        Re: linux-next 20160512 - ACPI issue with screen brightness Aaron Lu <aaron.lu@intel.com> - 2016-05-20 07:50 +0200
          Re: linux-next 20160512 - ACPI issue with screen brightness Valdis.Kletnieks@vt.edu - 2016-05-20 09:10 +0200
            Re: linux-next 20160512 - ACPI issue with screen brightness Aaron Lu <aaron.lu@intel.com> - 2016-05-20 09:20 +0200
              Re: linux-next 20160512 - ACPI issue with screen brightness Aaron Lu <aaron.lu@intel.com> - 2016-05-20 09:40 +0200
              Re: linux-next 20160512 - ACPI issue with screen brightness Aaron Lu <aaron.lu@intel.com> - 2016-05-21 05:30 +0200
                [PATCH] ACPI / Thermal / video: fix max_level incorrect value Aaron Lu <aaron.lu@intel.com> - 2016-05-21 10:00 +0200
                Re: [PATCH] ACPI / Thermal / video: fix max_level incorrect value Aaron Lu <aaron.lu@intel.com> - 2016-05-25 07:20 +0200
                Re: [PATCH] ACPI / Thermal / video: fix max_level incorrect value Valdis.Kletnieks@vt.edu - 2016-05-26 03:50 +0200
                Re: [PATCH] ACPI / Thermal / video: fix max_level incorrect value Aaron Lu <aaron.lu@intel.com> - 2016-05-26 07:20 +0200
                Re: [PATCH] ACPI / Thermal / video: fix max_level incorrect value "Zhang, Rui" <rui.zhang@intel.com> - 2016-05-27 02:50 +0200

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