Eric Anholt <[email protected]> writes: > This reverts commit 3209b094a3b1466b579e8020e12a4f3fa78a5f3f. After a > long debug session by Paul Berry, it appears that this was the commit > that has been producing sporadic failures in piglit front buffer > rendering tests for the last several years.
The essential requirement is that a DRM client receive notification each time the buffer has changed. DRM2 sends InvalidateBuffers events each time the window size changes, which matches the semantics of this patch. I can't see any reason to invalidate the buffer more often than this; I think we'll have to assume that this bug was actually caused by some other buffer management bug and that this old patch simply masked the problem found then. Reviewed-by: Keith Packard <[email protected]> -- [email protected]
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