On Mon, 18 Dec 2023, Thomas <t.luettecken@xxxxxx> 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
