It's almost certainly an Intel driver problem (wouldn't surprise me, as Intel just flat fails at almost all software), but as the OEM for the Surface Pro 3, it's MICROSOFT'S responsibility to drive Intel to get a fixed driver and then make it available through Windows Update at least for SP3 owners. (Other OEM's may have to distribute the driver separately, although I think the idea behind Win10 is to unify driver distribution through Win10 updates.)
Bottom line: Intel's fault or not, MS is still on the hook for a fix. (I know, I was once responsible for all software for Dell's laptop brands, from BIOS, to OS, to drivers, to bundled software...)
My fear is that with the imminent release of the Surface Pro 4, we may never see our Surface Pro 3's fully working with Windows 10 (there are SO many things broken: rotation, docking, input focus on wake, etc...) I hope I'm wrong.