From: "Michel Dänzer" <michel.daenzer@mailbox.org>
To: Sasha McIntosh <sashamcintosh@google.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
trivial@kernel.org
Subject: Re: [PATCH] drm: Add "min bpc" connector property
Date: Mon, 3 Nov 2025 12:22:55 +0100 [thread overview]
Message-ID: <f1abafa2-97e8-49ad-abc8-c71914ac2212@mailbox.org> (raw)
In-Reply-To: <20251031204534.659180-1-sashamcintosh@google.com>
On 10/31/25 21:45, Sasha McIntosh wrote:
> [Why]
> When playing HDR or WCG content, bandwidth constraints may force the
> driver to downgrade to 6bpc, resulting in visual artifacts like banding.
>
> Userspace should be able to configure a minimum allowed bpc.
>
> [How]
> Introduce the "min bpc" connector property so the user can limit the
> minimum bpc. Mirror the "mac bpc" implementation.
One issue with this is that the effective bpc of the link (as observed by the user) can be higher than the physical bpc, due to things like DSC or various dithering techniques. So requiring a minimum physical bpc could artificially exclude configurations which would otherwise work fine.
--
Earthling Michel Dänzer \ GNOME / Xwayland / Mesa developer
https://redhat.com \ Libre software enthusiast
next prev parent reply other threads:[~2025-11-03 11:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-31 20:45 Sasha McIntosh
2025-11-03 11:22 ` Michel Dänzer [this message]
2025-11-06 8:06 ` Marius Vlad
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=f1abafa2-97e8-49ad-abc8-c71914ac2212@mailbox.org \
--to=michel.daenzer@mailbox.org \
--cc=airlied@gmail.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maarten.lankhorst@linux.intel.com \
--cc=mripard@kernel.org \
--cc=sashamcintosh@google.com \
--cc=simona@ffwll.ch \
--cc=trivial@kernel.org \
--cc=tzimmermann@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®