Experimental Patches Revised For AMDGPU HDMI Stereo 3D, DAL/DC Now Supported
Written by Michael Larabel in Radeon on 25 February 2017 at 07:43 AM EST. 7 Comments
RADEON --
Last month an independent contributor to the AMD Linux graphics stack posted AMDGPU patches for HDMI Stereo 3D support within this open-source Radeon DRM driver. Those patches were rather dismissed in part because they didn't implement the support along the new DAL/DC display code-paths, but that has now changed.

Jeff Smith who originally posted the HDMI Stereo 3D patches last month has gone through and revised his code. Additionally, he's wired up this HDMI feature for both DC and non-DC code-paths. For both display code paths, getting HDMI Stereo 3D working is just a little over one hundred lines of code in total.

HDMI 1.4 introduced stereoscopic 3D formats and besides needing a supported AMDGPU-powered graphics card you'll also need to have a 3D TV. Intel's DRM driver has offered Stereo 3D support for a while and there are also Nouveau HDMI 3D patches but not many Linux users (or anyone in general) seem to have 3D TVs.

These latest AMDGPU Stereo 3D patches can be found on the dri-devel list.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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