liboutput: thoughts about shared library on top of DRM/KMS

Robert Foss robert.foss at
Sat Oct 5 20:36:10 UTC 2019

Hey Keith,

Thanks for setting this up, and picking a descriptive project name :)

How is liboutput going to relate to the libliftoff[1] project?



On 05.10.19 18:09, Keith Packard wrote:
> During XDC this year, we heard a few presentations and had a lot of
> hallway talk about sharing code for driving DRM/KMS for display.
> I think the general consensus is that there is enough shared
> functionality between all of the various DRM/KMS clients that we can
> start thinking about building a library that deals with the complexity
> of DRM/KMS and can help take full advantage of the hardware.
> I've started writing up some ideas, mostly just goals, but also some
> random thoughts about how this might work. This is all in the
> 'liboutput' project on
> I picked a spot in the 'xorg' namespace, not to confine this to X
> systems, but to reflect the goal that this be a library shared across
> all projects, including Wayland compositors, EGL and
> Vulkan direct applications and the X server.
> All there is at this point is a file; I'd like to generate
> some consensus on a direction for the project before we start writing
> any actual design documents.
> Please submit MRs to that repo, or respond to this email as you prefer.
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