We have several Mac Pro towers at our studio and 6 old (but still great!) Apple Cinema 30″ Displays. As we move from Mac Pro (5,1) series to (7,1) we bought 3 of your USB C to Dual Link DVI-D Adpaters. They give great picture BUT there is a dealbreaker problem – Mac Pro stutters for a half second every 8 seconds or so when we use your adapter. It’s not usable this way. Is there some workaround or maybe firmware update?
Thank you very much for your time!
Does it work better if the adapter is connected from the Thunderbolt port of a Thunderbolt dock or hub? Of course, that solution is very expensive but it would be interesting to see if it’s different.
Did you try all the built-in Thunderbolt ports of the Mac Pro?
2 on the top.
2 from the I/O card.
Up to 4 from an MPX module.
Did you check the EDID of all the Apple Cinema 30″ Displays? Some indicate HDCP support and older versions of the display indicate no HDCP support.
The HDCP ON version of the firmware is for displays with the HDCP indicator.
The HDCP OFF Version of the adapter firmware is for displays that indicate no HDCP support.
You can e-mail [email protected] to get a firmware updater for each version. You’ll need to use Windows (Boot Camp) to do the update.
I dont’t have a hub, but I have tried all 8 ports! They all work, but also they all have the same issue of stuttering after 8 seconds for half a second. Some of Apple Cinema Displays are early 2005. models and for some I don’t know the series as they were bought used. We have them 6 in total.
I downloaded you firmware updater, I’ll install Windows and try it out. Thank you very much for your very agile and kind support!
Hi! Just to report that your advice solved the problem! There was a big problem to install Windows on Mac Pro in that setup because installer had no video, so I had to borrow a cheap HDMI display just for the Windows install. When I got there, your firmware updater worked as expected and when I rebooted to MacOS the stuttering problem has gone! Thank you very much, your support is ace! 🙂
