Hi, On Fri, Mar 25, 2016 at 11:03:36AM +0100, martin f krafft wrote: > Hi Andreas, > > Thank you for taking your time to reply. I've since followed up > having found the problem, and I think it must be one of the DP ports > on the graphics card.
Ooook. > Now, you write: > > > Perhaps unthinkable, but the connectors of the card might be > > implemented / wired up asymmetrically, e.g. due to an ickily > > varying length of traces, or EMI issues. > > This leads me to believe that the connector hardware itself could be > at fault. Seriously, is DP *that* finicky and subject to connection > failures? I'd have thought that it being 2016, the industry would > have finally gotten the hang of it, especially after screwing up > HDMI so badly. Hmm, I was writing that focussing on PCB-side implementation etc., but of course mechanical connection issues (including soldering issues) likely are more dominant (when doing failure diagnosis, one likely should focus on more "mechanical" / electro-physical parts such as connectors, fuses, capacitors, transformers, ... initially, since these are much more prone to failure due to their inherent wear and tear - movement, thermo-related etc.). Nice to hear that this seems nailed now. Andreas Mohr _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: https://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s
