Windows 10: scaling problem

Hello, I have a 4K TV as a monitor connected via DVI-HDMI. I have 3840*2160 and scaling 100% (because I want all pixels when viewing photos *Wink Today for the second time I noticed that all desktop icons are spread out in crazy distance like around 200px but they are small, not enlarged. I do right click - display settings and it says in red "Some apps won't respond to scaling changes until you sign out". I did not do any scaling changes! It is still 100%, but since recently I saw twice this icon mess and this message. Fonts in apps look a bit weird too I think. Last time it happened, I signed out and icons were fixed, but today after powering on the system it is back. Anybody noticed this as well? Maybe it is happening after my GPU upgrade...

:)

 

New Photo App not Working Properly

I found the solution to this problem and it all deals with text scaling (size) in Win10. If you set custom scaling factors to 125%, 130%, 135%, 140%, 145%, 150%, etc. all is okay with the Photo app. The problem arises if you set a scaling factor to something
like 137% or 148%. It appears the scaling factors have to be set to 5% increments. Win10 actually warns the user that some apps may not scale properly with custom scaling factors.

 

Surface pro 4 Dock Scaling problems

I use the dock for working with an external monitor Iiyama 1920 x 1080 who i just have bought for use with the surface.

The main problem is wrong scaling.

The monitor is connected with the dock with a mini-display to HDMI cable.

In Windows 10 the scaling settings are as recommended: 200% for the surface, 100% for the monitor.

Sometimes the scaling on the external monitor is correct, often it isn't.

F.i. Using the edge browser the scaling is correct for the main window but when edge is given suggestions for an adress, this box is scaled 200%.

F.i. Using Excel 2016 rarely scales correct, often it is scaled 200% or sometimes zoomed out. PowerPoint and Word 2016 mostly scale 200%. Restarting or displaying the program from one screen to the other and back does't help.

I've tried changing display scaling settings but this doen's solve the problem.

Any suggestions? Thanks.

 

Seems the problem happens when Windows boots with the TV off. When I switch the TV on before then it's OK...