I haven't really given Standard Ubuntu a chance yet, because I don't like the direction they're going in recent years (different topic). But will definitely consider it, if my issues persist.
My XPS is a work laptop and I haven't used Windows for work in over a decade or so, which makes switching a potentially bigger undertaking ... which I might avoid, if possible.
Thanks for the cable length tip! Hadn't considered this and am using a 1,20m+ cable -- will definitely try a shorter one.
Thanks for the cable length tip! Hadn't considered this and am using a 1,20m+ cable -- will definitely try a shorter one.