I have Dell XPS 17 9700, with Windows 10 Professional, and I connected it to a universal docking station called Targus Dock177 which is compatible with DisplayLink.
It automatically detected the docking station and recognize all devices connected to it (two monitors, mouse, headphone....) The Dell and docking station worked fine and smoothly for more than three months. Dell detected automatically the Targus and monitors and connected them using "DisplayLink" driver

But suddenly today (12th January 2021) it doesn't recognize the monitors anymore. Mouse and headphone still working, but the monitors are not working.

if you check the devices with "Device Manager" you will see the two monitors under "Display Adapters" being faulty and has errors (two of them), and the error message is:

Windows has stopped this device because it has reported problems. (Code 43)

enter image description here

I tried many things:

  1. restart the PC
  2. disabled the drivers and re-enable them
  3. uninstall the drivers and restart again and install them
  4. update the drivers (which they are up-to-date with displaylink drivers)

Every time I do that, it will go into a process that takes 2 minutes of flashing the monitors and popup of the taskbars, and at the end of two minutes it will just freeze the two monitors and only the laptop monitor works and only the laptop monitor get recognized, and the two monitors are not recognized.

When I try to detect the monitors I don't see them , just the laptop monitor.

When I check my Windows Update History I don't see any update recently. The latest update was on 20th December 2020. I force today this update:

2021-01 Windows accumulative update with no change on recognizing the monitors

This is my version of Windows 10

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  • Did you update to 20H2 ? We have hit the same issue with it. Jan 12 at 18:43
  • @EugenRieck No. I updated my post and added my windows 10 version Jan 12 at 18:53
  • @GhassanKarwchan - You can essentially be on 20H2 through an update. Can you edit your question to include View update history within Windows Update?
    – Ramhound
    Jan 12 at 19:27
  • @Ramhound : When I go to windows update I can see there is an option to upgrade to 20H2, which I didn't proceed with it. So I am assuming I am not on 20H2. Anyway, I will add my windows update history Jan 12 at 20:23
  • I would suggest installing KB4598242 due to changes it brought to the security of external devices.
    – Ramhound
    Jan 12 at 20:41

After long time of try and error, I found the solution and it is very silly.

I switched off the docking unit for 10 seconds, and switch it on again, and everything is back to normal.

I am sorry if this not really a technical answer, but I thought I will share it in case someone had the same issue.

I was trying to disconnect and reconnect the monitors and then I found it was one of the monitor port that is causing the problem.

So, I switched off the docking unit for a while and reconnect it again, and it just work as before.

I don't know what the cause but it could be some statics electricity or something.

Thank you everyone for your help

  • These docks are computers. Sometimes they need to be powered off and back on. Jan 13 at 4:22

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