can't use 17" apple studio display on displaylink usb adapter

[cpgeek]

Originally Posted by arampon

Hello,

Your case is not really a case that anyone else is using nowadays: if we are talking about the same monitor, this is a soon to be 15 year old device you are now plugging on a <1 month old operating system (Windows 10 Insider Preview with beta graphics drivers).
I hope you can understand we unfortunately have to prioritise based on the number of people impacted and despite looking we don't have such monitor in store as Apple made the ADC obsolete 11 years ago.
Furthermore, the ADC -> DVI adapter, even if extremely costly at the time is very particular in the way it works, or doesn't...

The DXdiag results are a red herring. DXdiag doesn't understand what is plugged in.

1. Can you please explain what is your current setup? What is the chain of connection?
I'm confused by your mention of a DisplayPort adapter and how it has an impact on another monitor as the HP NL571AA is a USB->DVI adapter.
2. Is your monitor really the following? http://www.everymac.com/monitors/app...lay_17_fp.html. What we can read says 2001 so it should be.
3. Can you please give up to date logs? There are too many variables which changed to make the old one useful. FWIW, in that first log, not only was your screen recognised properly, but the DisplayLink adapter declared outputing 1280x1024x32@60 (monitor APP9217 (Apple Studio ) modes: 1280x1024@60.0197)... So the issue seems more located after that. Do you have any information we could have missed?

Kind regards,
Alban

OK, to simplify the situation let's move away from my complex workstation configuration completely. clean slate. My laptop is a Dell XPS 15 (L521X) with a copy of windows 10 that was installed from scratch (not an upgrade). I followed the instructions for downloading and installing the latest version of the displaylink driver for windows 10 from the displaylink website, rebooted. I plugged in my known good dell 2407wfp monitor (1920x1200@60hz) via a known good DVI-I cable to one of my many HP NL571AA displaylink adapters. The monitor powers on and begins displaying at 1920x1080@60hz. a trip to the video settings advanced dialog shows selectable resolutions from 800x600 to 1920x1080 and does not show me 1920x1200. Once again DxDiag says that it's plugged into hd15 (while you say this is a red herring, it said DVI when using the same configuration under windows 8.1 on the same hardware (both this notebook and my workstation pre windows 10) and provided me with the correct 1920x1200@60 display mode).

I have used the DisplayLink Windows Support Tool on my notebook while my aforementioned dell monitor was hooked up to it as described. Furthermore, I attempted the same tests with my Samsung SyncMaster 2443 (1920x1200@60hz) connected via dvi to the hp displaylink adapter as well and I got exactly the same results (it displays, but only at 1920x1080@60 at the highest). I'm rather surprised others aren't reporting these kinds of difficulties with windows 10, it seems to be pretty consistent.

[AlbanRampon]

Thank you for the logs.
From the USB log details I've been drilling down to track which chip is powering your adapter. DisplayLink doesn't design or manufacture any adapter or docking station, so it's not directly found in system_details.txt.
Your adapter is running the DL-165 chip.

In the supported resolution table, the DL-165 is 1920x1080 or 1600x1200 max.

That explains why even with your newer monitor Windows doesn't report 1920x1200 as supported.