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From: Thomas Zimmermann <tzimmermann@suse.de>
To: Maxime Ripard <mripard@kernel.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	Dmitry Baryshkov <lumag@kernel.org>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] drm/tests: edid: Update CTA-861 HDMI Vendor Specific Data Block
Date: Wed, 16 Jul 2025 17:34:15 +0200	[thread overview]
Message-ID: <89bce051-3732-48a8-9679-11a404bbbfb3@suse.de> (raw)
In-Reply-To: <20250716-realistic-cream-ammonite-304cca@houat>

Hi

Am 16.07.25 um 17:06 schrieb Maxime Ripard:
> Hi Thomas,
>
> On Mon, Jul 14, 2025 at 01:02:33PM +0200, Thomas Zimmermann wrote:
>> Hi
>>
>> Am 25.06.25 um 17:14 schrieb Maxime Ripard:
>>> For some reason, the HDMI VSDBs in our kunit EDIDs had a length longer
>>> than expected.
>>>
>>> While this was harmless, we should get rid of it to make it somewhat
>>> predictable.
>> Dump question: should these errors be kept in another test specifically for
>> detecting this problem?
> I'm not entirely sure what you mean here, sorry. Did you mean that we
> should get some tests to prevent that kind of EDIDs from being accepted
> by the kernel?
>
> If so, I guess it would mean getting a test suite for the EDID parser
> itself, which is definitely something that should happen at some point
> but seems a little out of scope to me.

OK. I meant that these are ill-formed EDIDs and the kernel's EDID 
processing should handle them gracefully. A test could verify this. Not 
a blocker for this series, of course.

Best regards
Thomas

>
> Maxime

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)


  reply	other threads:[~2025-07-16 15:34 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-25 15:14 [PATCH 0/3] drm/tests: edid: Improve our kunit EDIDs Maxime Ripard
2025-06-25 15:14 ` [PATCH 1/3] drm/tests: edid: Fix monitor range limits Maxime Ripard
2025-07-10 12:09   ` Javier Martinez Canillas
2025-06-25 15:14 ` [PATCH 2/3] drm/tests: edid: Update CTA-861 HDMI Vendor Specific Data Block Maxime Ripard
2025-07-10 12:13   ` Javier Martinez Canillas
2025-07-14 11:02   ` Thomas Zimmermann
2025-07-16 15:06     ` Maxime Ripard
2025-07-16 15:34       ` Thomas Zimmermann [this message]
2025-07-28  8:37         ` Jani Nikula
2025-06-25 15:14 ` [PATCH 3/3] drm/tests: edid: Add edid-decode --check output Maxime Ripard
2025-07-10 12:16   ` Javier Martinez Canillas

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