fix(kms): run modesetting after the surface is resized #272
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Without setting the UniversalPlanes capability, only planes with PlaneType::Overlay are returned by the kernel. This commit allows the example to run on devices that don't have any of those, but have at least one Primary plane
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When the user called
Surface::resizewith thekmsbackend, no modesetting was done. At least on the devices I tested with, this made the page flips fail, returningEBUSY. This is now fixed by callingset_crtcinside theresizefunction.Additionally, I made the drm example request the UniversalPlanes ClientCapability, since that allows the example to run on less powerful devices that don't have any overlay planes (Unless the client sets that capability, the kernel only returns overlay frames from the
Device::plane_handles()call).Fixes #271.