I just bought an HP z27 4k monitor but when I hook it up to my Windows computer, the screen keeps flickering.
The solution for me was to change the resolution through the NVIDIA control panel.
- Open up NVIDIA Control Panel
- Navigate to
Display > Change Resolution
- Select your HP z27 display
- In the Resolution picker, choose the “native” resolution which should be 3840 x 2160. Note: you should click on it even if it looks like it’s already set to that.
- Once you’ve selected an option, an
Applybutton will appear. Click on that.
The screens should flash again and then your monitor should be fixed.