From: Jani Nikula <jani.nikula@linux.intel.com>
To: Thomas <t.luettecken@web.de>, dri-devel@lists.freedesktop.org
Subject: Re: enforce the Display Stream Compression
Date: Tue, 19 Dec 2023 12:05:22 +0200 [thread overview]
Message-ID: <87sf3ytsm5.fsf@intel.com> (raw)
In-Reply-To: <494cba52-2a19-e2dd-8a88-bc304f729889@web.de>
On Mon, 18 Dec 2023, Thomas <t.luettecken@web.de> wrote:
> I want to enforce the Display Stream Compression (DSC) of the Intel i915
> driver in Linux Ubuntu 22.04 to test it. While inspecting the source
> code, I came across a query called "force_dsc_output_format" that seems
> useful to me. My question is more general and pertains to the procedure
> for setting such queries/switches. How can I set this query to True to
> force DSC? Do I need to modify the kernel parameter line, and if so,
> how? Or is there another method?
There are connector debugfs files named i915_dsc_* for controlling
this. They are for debug and test purposes only. See the relevant igt
tests for how they're used in testing [1].
BR,
Jani.
[1] https://gitlab.freedesktop.org/drm/igt-gpu-tools
--
Jani Nikula, Intel
prev parent reply other threads:[~2023-12-19 10:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-18 14:02 enforce the Display Stream Compression Thomas
2023-12-19 10:05 ` Jani Nikula [this message]
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