Comment # 5 on bug 101837 from Emil Velikov

(In reply to Lauri Kasanen from comment #4)
> The DRM node must be opened (and kept open for the lifetime of the app) to
> make the VRAM queries, or to make the register queries on kernels that
> prohibit direct access (e.g. Ubuntu).

Right - the fd is required for the queries. Yet the app does not seem to close
it upon exit ;-)