On Tue, Jan 21, 2025 at 10:05:03PM -0600, Aaron Kling wrote: > A section of drm_hwcomposer [1] fails to find any primary planes on > t186 and t194, while t124 and t210 work as intended. This was observed > on the android common kernel 5.15, 6.1, and 6.6 compiled with clang. > There have been no relevant changes between the stable kernel branches > and the corresponding android forks in regards to tegra-drm. > > I traced the issue back to the shared planes creation and reported a > suggested fix for this use case to the tegra-drm tracker on > freedesktop [2], but did not receive any response so I'm opening the > discussion here. > > I don't have a non-Android based test case to verify this issue. And > am unsure if this is a general issue or one caused by the compiler > setup required by aosp. Is this functionality verified by the > regression testing setups? > > [1] https://gitlab.freedesktop.org/drm-hwcomposer/drm-hwcomposer/-/blob/bf13180ffc69446262af666bb8d3c32869572214/drm/DrmDisplayPipeline.cpp#L74 > [2] https://gitlab.freedesktop.org/drm/tegra/-/issues/3 Hi Aaron, I missed the original report for some reason but I've now responded to that issue you filed. I don't have a personal preference for where to discuss things. gitlab seems a nice place to help keep track of things, but email works for me as well. Thierry
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