From: steev@gentoo.org (Steev Klimaszewski)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: tegra: Fix nyan-big panel binding
Date: Sun, 19 Jul 2015 22:26:52 -0500 [thread overview]
Message-ID: <1437362812.8225.13.camel@gentoo.org> (raw)
In-Reply-To: <CAEUnVG6g-0iYexKPXjO167-O6Oay71QXnoVz1Hvs=U8tSOp5uw@mail.gmail.com>
On Sun, 2015-07-19 at 16:43 -0600, Dylan Reid wrote:
> On Sun, Jul 19, 2015 at 2:15 PM, Steev Klimaszewski <
> threeway at gmail.com> wrote:
> > The nyan-big Chromebook uses a 1920x1080 panel, not a 1366x768
> > panel so correct
> > the binding.
>
> This isn't incorrect, although it is not complete. Nyan-big (Acer
> CB5-311) has _both_ a 1920x1080 and 1366x768 variant available. They
> are referred to as the "Full HD" and "HD" models respectively.
Actually, as it turns out, that was a wrong turn.
The real issue is that 1d002fa720738bcd0bddb9178e9ea0773288e1dd
(drm/dp: Use large transactions for I2C over AUX) breaks reading of
EDID data on the nyan_big "Full HD" - I'm not sure if it does on
others, but by setting DP_AUX_MAX_PAYLOAD_BYTES to 1, it fixed reading
the EDID data here and I have 1920x1080 at boot, with valid EDID data.
Not really sure the best way to go about doing that though. I've poked
at some people in #dri-devel on irc, to see what they think.
prev parent reply other threads:[~2015-07-20 3:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-19 20:15 [PATCH] ARM: tegra: Fix nyan-big panel binding Steev Klimaszewski
2015-07-19 22:43 ` Dylan Reid
2015-07-19 22:54 ` Steev Klimaszewski
2015-07-20 3:26 ` Steev Klimaszewski [this message]
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