Mutter actually *does* support 10bpc, just not with zwp_linux_dmabuf_v1. It seems that mesa will incorrectly try to use formats advertised by wl_drm but not zwp_linux_dmabuf_v1. https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4294 fixes this for me.
Mutter actually *does* support 10bpc, just not with zwp_linux_ dmabuf_ v1. It seems that mesa will incorrectly try to use formats advertised by wl_drm but not zwp_linux_ dmabuf_ v1. https:/ /gitlab. freedesktop. org/mesa/ mesa/-/ merge_requests/ 4294 fixes this for me.