I am having similar issues with my display and also with my (cyprus) trackpad. I have found that changing the resolution temporarily fixes the screen issue. This is quickest done using the following steps
1. Show desktop (move cursor to the far end of the taskbar and click)
2. Right click on desktop and select 'Display Settings'
3. Select 'Advanced Display Settings'
4. Change from 1366x768 (recommended) to 1360x768 and press apply.
5. Leave the Advanced Display Settings window open.
This fixes it for me for a while, then the next time it happens I can just alt-tab back to the window, select 1366x768 and re-apply. Not a good fix but quicker than restarting/shutting.
A proper update is essential from Dell/Microsoft !!!!! Also - Microsoft's decision to put the resolution in 'advanced' settings seems patronising. Technology needs no more dumbing down.
Basically you need to change the graphics driver for an older version.
Windows 10 automatically installs one that causes the problem.
I have an xps13 L321x with an Intel HD Graphics 3000 display adaptor and win 10 installs driver version 126.96.36.19959 Date 19/05/2016
I uninstalled that and use driver version 188.8.131.5229 Date 26/05/2015 which is a win 7/8 driver and it works perfectly now.
You will however have to follow the instructions for stopping win 10 from automatically updating apps and drivers as it will keep putting the wrong one back.. System and antivirus updates will still happen as normal.
Heading over to Dell support, driver downloads and putting 9.17.10 4229 in the search box produces a slightly newer one with a date 12/04/2016 which I haven't tried!
Major windows 10 updates like the win 10 fall creators update will reset the system and allow automatic driver updates. So you will have to turn it off again. I also kept the driver file when I found it in my downloads folder for easy access as the downloaded driver file I use was not easy to find originally.
Well it worked for me.......