hello Mike,
How i can uninstal de sp4 drivers? I think is video driver problem related. The problem appeard after last video driver update, the problem after universary update has been solved when my surface is pluged in, but persist when is on battery.
Thank
Sorry for the delayed response - I am surprised no one else answered you. Regardless here is how you can un-install / reinstall SP4 Drivers.
1) Download the latest drivers from here---->
Download Surface Pro 4 Drivers and Firmware from Official Microsoft Download Center (make sure to grab the 237 mb file named "SurfacePro4_Win10_161201_0.msi")
2) Once downloaded, navigate to the file and open. You will have a few options, but 2/3 should be greyed out, you will want to click on "REMOVE"
3) Once you have removed the drivers, reboot your PC
4) Once rebooted, again navigate to the file you downloaded and open.
5) Install the drivers and reboot
6) Check to see if you issue(s) still exist
7) Enjoy
8)Come back to this page and hit like if it worked
Also - if you need a guide with pictures, I will be glad to make one for you.
Mike