I'm an owner of a Thinkpad t510 (4314-dxg) with switchable graphics. As many users reported, with the new nvdia driver (the one you download from lenovo support website) there's no way to stream audio to external device through displayport (invidia issue, not lenovo). The bug isn't solved yet, so I want to download the older version of the driver, but I can't find it on lenovo driver webpage nor nvidia website.
Can someone help me to find it? Thank you, Michele