Dell D6000 gets stuck at 640x480
 

Very similar to this post with minor changes that I'll detail below - https://displaylink.org/forum/showthread.php?t=66212

I am assisting with troubleshooting this for a client of mine. We're not physically in the same location, although it is possible for me to go there if needed.

We have 2 identical AOC WQHD (2560x1440) monitors that are both hooked up via DP-DP cables. Both monitors and both cables worked prior the PC getting replaced in May - issues were introduced with the new hardware. We swapped out an Optiplex 9020 with a brand new Latitude 5590 (w/ D6000 dock).

We have proven out the existing hardware by replacing cables and swapping ports that each monitor is plugged into. We have also replaced the D6000 dock itself, but all the same issue have re-occurred. The low resolution usually happens when returning to the station (monitors have been in sleep mode overnight or while elsewhere doing other tasks). Turning the monitor off and back on resolves the issue temporarily. The pre-release driver was mentioned in the thread above, but I wanted to provide the logs for review prior to utilizing a beta driver in vain. Thanks in advance!

Hi,

What you've described matches what I saw.

Can you try the 9.2 Alpha?

Thanks,
James

I was able to get the Alpha 9.2 driver installed, and we gave it a couple days to settle. The low-resolution happened once when he came back from lunch, and again just this morning when he got into the office. It doesn't appear this has gotten any better with the Alpha driver.

Hello,

We have just released our latest 9.2 M0 driver. Please give this driver a go and let us know if it fixed your issue. You can find the driver here: https://www.displaylink.com/downloads/file?id=1371

Kind regards,
Aga

Hello,

Can you please confirm if you've tried the 9.2 M0 driver? If you have and the issue continued, could you please capture a new set of logs and send them to us for further analysis? Thank you!

Kind regards,
Aga

@astruzyna
I just confirmed with the end user that he has not seen any problems with it since this driver was put in place. He's been keeping a ledger of when it happens. So far so good! :D

Hello,

I am very glad to hear that. Thank you for the update! :)

Kind regards,
Aga

D6000 stuck at 640x480
 

Help!

I realize this post is from quite some years back but unfortunately I'm facing the same issues now.

I have used the D6000 dock for quite a few years and the problem only started today.

1 monitor works like it should.
2nd monitor on the displayport is recognized as "no monitor" and set at 640x480 without options to increase resolution.


Troubleshooting done:
- Installed the latest drivers version 11.2.3146.0, A05
- Tested the second monitor by connecting this display to my PC directly -> Monitor works perfectly fine
- Connected the D6000 to 3 different PCs/laptops -> all face the same issue with low res on the 2nd monitor
- connecting the 2nd monitor to a different displayport doesnt help either

First, the driver version you have installed may be the latest provided by Dell for the docking station, but it is not the latest from DisplayLink directly (which is 11.3 M0). If you have not already done so, please try using the latest driver --> https://www.synaptics.com/products/d...nloads/windows

The behavior you describe sounds like there may be an issue with the EDID process --> https://en.wikipedia.org/wiki/Extend...ification_Data which is why the display is only operating at 640x480.

A few questions:

1. What is the brand and specific model number of the affected display?

For example, 'Dell U2415'

2. If you replace the current video cable with a different one, does the behavior change?

3. Do you have a different model display you can test with temporarily? That will help determine if the behavior is specific to the display or the dock.

it was the cable... a displayport to DVI cable. Guess the signal processing chip was fried for some reason.

Thanks for suggestions rboerner!