Surface Dock keeps waking up external monitor

Hi,

Let's get this resolved by checking and installing all the updates available for your device. Make sure that your dock is connected to your Surface device while checking for updates. Also, download the Surface Dock Updated from this link. Once you click Download, check the box for SurfaceDockUpdaterSetup.msi.

If this doesn't help resolve your issue, we suggest that you visit the nearest Microsoft retail store or contact our Answer Desk.

Feel free to post if you have other concerns.

Followed all the steps above (the SurfaceDockUpdaterSetup updated the firmware of the Dock which took 15 minutes) and I re-checked for Updates. All looked good.

But unfortunately the problem still exists. Setting display to PC screen only doesn't stay. The external monitor wakes up again immediately after going to sleep.

Going to try Answer Desk before I bring this thing in.

Hi,

Let's get this resolved by checking and installing all the updates available for your device. Make sure that your dock is connected to your Surface device while checking for updates. Also, download the Surface Dock Updated from this link. Once you click Download, check the box for SurfaceDockUpdaterSetup.msi.

If this doesn't help resolve your issue, we suggest that you visit the nearest Microsoft retail store or contact our Answer Desk.

Feel free to post if you have other concerns.

I got a Surface Pro 4 for Christmas and just got a Surface Dock and this same thing is happening.

If I don't "need" to use the external monitor and try to set the display to "PC screen only" it disconnects the monitor only to just re-enable it again 5 seconds later.

So this is seemingly a hardware issue on the Surface Pro 4 (presumably on the power port where the Dock connects?)

ENV

Thanks for letting us know and we appreciate your patience. We'll take note of this case and it's resolution for future reference.

Regards.

I have had the same issue with Surface dock and surface book and LG 25UM55D 25” UltraWide 2560x1080 connected through DisplayPort, from day one. The monitor keeps coming out of sleep and going back to sleep all night, in my bedroom. All firmware and software are up to date and also followed the troubleshooting steps previously. Only workaround currently is to physically turn the monitor off. That is what I do if I cannot fall asleep due to this coming on every few minutes.

I don't think that support people have any clue as to how to resolve surface dock issues. They just ask to update firmware and software. Earlier I had all the peripherals connected to the dock going on and off constantly (including the monitor). Then I discovered that if I flip the SurfaceConnect the other way, the problem goes away. Then I took it to the Microsoft Store where the engineer and me did troubleshooting together with different surface docks and monitors and cables. Turned out that it was the SurfaceBook that had a faulty connector. So they replaced my surface book and it has been fine since. There are many articles about cables and firmware and supported monitors etc. Seems like many people have reported that the issue usually turns out to be in the hardware, in the internal connector, which is the last thing one would suspect.