Surface Pro 6 Runs Slower in Dock

Hi Moirty,

Thank you for posting your concern here.

We really sorry for the inconvenience that has caused you on your Surface device that it runs slower when its connected to the Surface dock. No worries, we are to further assist you with regard to your concern.

For us to better understand your concern, please answer the questions:

• Is there any changes on the Surface device before this issue happened?
• Have you tried any troubleshooting steps? If yes, what are those steps?
• May we know if you have any other Surface device connect to the Surface dock if the same issue happened?

Here are the few things we can highly suggests you do:

**Step 1:**We will make sure your Surface device is up-to-date. To check the updates, go to Settings > Update and Security > Windows Update, on the right side please tap/click the button "Check for updates" for us to know if there's any pending updates that needs to be installed on your Surface device. (Note: If there's any pending update on your Surface device, please do the update and while the Surface device is downloading/installing the updates, please do not perform any steps on your Surface device, let the Surface device completely installed the updates).

**Step 2:**Please download and run the Surface Diagnostic Toolkit on your Surface device using this link http://aka.ms/surfacedt It is a self-healing tool which looks for potential issues and fixes them, as well as ensures your device is completely up to date. The tool takes about 15-30 minutes to run.

Let us know how it goes. Looking forward to your response.

Best regards,

Mizey

I ran the diagnostic but I can't tell whether it actually did anything. Regardless whether it made changes, I can still see a difference between undocked (faster) and docked (sluggish).

All software is up-to-date. The problem has existed at some level for as long as I have owned the computer.

No, there are no other Surface Devices connected to the dock....only this Surface Pro 6.

-bs

A few examples to put this in perspective:

• When undocked, if I press the windows key and then begin typing "Excel," the computer will respond faster than I can type (it will guess I want Excel before I even type the letter "x"). When docked, however, there is a brief but noticeable delay when I press the windows key. Furthermore, I can type out the entire word "Excel" before the computer will actually show me the option for Excel.
• I see similar sluggishness when typing. I am typing this message on my docked Surface Pro often 1-3 characters faster than the computer actually shows the letter on-screen. When undocked, the computer is faster than my typing.
• I see similar sluggishness when selecting objects or dragging windows.

Note that task manager still shows my resources at very low percentages: 7-15% CPU; 40-58% memory; 2% disk, 0-2% network; 0-2% GPU.

Hi Moirty,

Thank you for your response.

We really thank you for your time and patience performing those troubleshooting steps on your Surface device. The best thing that we can do here is we need to contact our Microsoft Surface Support for them as well to further assist you on this and they can provide you what are those other alternative option to fixed this concern of yours. 

To contact our Support, please go to this link https://support.microsoft.com/en-us/contactus/

Best regards,

Mizey