From: David Weinehall <david.weinehall@intel.com>
To: Puthikorn Voravootivat <puthik@chromium.org>,
"Pandiyan, Dhinakaran" <dhinakaran.pandiyan@intel.com>
Cc: "Vetter, Daniel" <daniel.vetter@intel.com>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"Tc, Jenny" <jenny.tc@intel.com>
Subject: Re: [PATCH] drm/i915: Use AUX for backlight only if eDP 1.4 or later
Date: Tue, 25 Jul 2017 15:41:46 +0300 [thread overview]
Message-ID: <db06bdd0-7f9a-5098-4235-a9065bcdca99@intel.com> (raw)
In-Reply-To: <CANCcNXciimkyFdMo-dhcdqbeFJhC-+jAs4DNhrj5oUJZ4DFfXw@mail.gmail.com>
On 2017-07-25 02:15, Puthikorn Voravootivat wrote:
> I saw a DP 1.3 panel that advertise AUX backlight brightness control
> but not working properly. So it should work but not in real world.
> I think that is good reason enough to add this as a heuristic.
>
>
Either key it on eDP 1.4 and hope that it's a reasonable expectation,
or employ a whitelist (potentially lots of effort adding all displays that
supports AUX backlight, but safe from regressions) or a blacklist
(potentially fewer displays need to be added, but risks introducing
regressions for end users).
Kind regards, David
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next prev parent reply other threads:[~2017-07-25 12:41 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-19 10:29 [PATCH] drm/i915: Use AUX for backlight only if eDP 1.4 or later Jenny TC
2017-07-19 11:50 ` ✓ Fi.CI.BAT: success for " Patchwork
2017-07-19 18:22 ` [PATCH] " Pandiyan, Dhinakaran
2017-07-20 9:33 ` Jani Nikula
2017-07-20 10:06 ` Tc, Jenny
2017-07-20 20:27 ` Pandiyan, Dhinakaran
2017-07-24 23:15 ` Puthikorn Voravootivat
2017-07-25 12:41 ` David Weinehall [this message]
2017-07-25 13:11 ` David Weinehall
2017-07-31 10:55 ` Jani Nikula
2017-07-31 22:41 ` Puthikorn Voravootivat
2017-08-01 23:15 ` Pandiyan, Dhinakaran
2017-08-02 13:53 ` David Weinehall
2017-07-20 15:35 ` David Weinehall
2017-07-20 18:20 ` Pandiyan, Dhinakaran
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