From: Daniel Vetter <daniel@ffwll.ch>
To: Dan Callahan <dan.callahan@gmail.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: i915 problem with DVI to HDMI adapter: crazy colors
Date: Mon, 9 Jul 2012 10:11:43 +0200 [thread overview]
Message-ID: <20120709081143.GA5349@phenom.ffwll.local> (raw)
In-Reply-To: <jtd5bq$sca$1@dough.gmane.org>
On Sun, Jul 08, 2012 at 06:33:14PM -0500, Dan Callahan wrote:
> Hi all,
>
> I'm running Debian Wheezy (testing) on an Asus Eee Box B202 nettop
> which has an Intel 945GME chip and a DVI-I output.
>
> I'm trying to connect it to a Panasonic Viera TC-L42E50 HDTV via a
> DVI-to-HDMI adapter. The resolution and rendering acceleration all
> seem to be working fine, but the colors are very wrong: Black
> appears green, and white appears pink.
>
> This only happens when KMS kicks in and I'm going from DVI to HDMI.
> During POST and at the GRUB selection screen, everything looks
> great. Things also look fine over a DVI to VGA adapter, or when KMS
> is disabled via i915.modeset=0. For photos, check out
> http://imgur.com/a/sVAx7
>
> I'm using Debian's stock 3.2.0-2-686-pae i686 kernel. A slightly
> similar issue was reported at http://bugs.debian.org/607529 and in
> an old thread here: http://lists.freedesktop.org/archives/intel-gfx/2010-October/008315.html
> Alas, the patches mentioned in the above threads appear to have made
> it into the upstream kernel without resolving the issue on my
> hardware.
>
> I've attached the output of dmesg when booting with drm.debug=0x0e
> to this message. Please let me know if I can provide other
> information or be of further help. I'm all set up to recompile the
> i915 module, so I'm happy to test patches.
I guess this is yet another incarnation of us not properly setting up hdmi
infoframes. Can you please test with a 3.5-rc kernel, that one contains a
fix for sdvo hdmi support. Specifically
commit 81014b9d0b55fb0b48f26cd2a943359750d532db
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sat May 12 20:22:00 2012 +0200
drm/i915: fixup infoframe support for sdvo
If that doesn't help, please also attach the output of xrandr --verbose.
Yours, Daniel
--
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48
next prev parent reply other threads:[~2012-07-09 8:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-08 23:33 i915 problem with DVI to HDMI adapter: crazy colors Dan Callahan
2012-07-09 8:11 ` Daniel Vetter [this message]
2012-07-16 3:30 ` Dan Callahan
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