just quoting myself from another thread, have a look at github where the troubleshooting takes place:
Found a solution, this forum category doesn't really seem to be read when it's about bugs. The official bug report way goes via github:
What's been working out for me is the following from the github thread:
I went into Nvidia Control Panel. This is where I changed "Aspect ratio" to "No scaling" on the Adjust desktop size and position page (with "perform scaling on Display").
With my setup it was also connected with the following:
...which was caused by my laptop having 2 GPUs as described before. I had to deactivate the "hybrid graphics mode" in the BIOS to "discrete mode", so my laptop would exclusively work with my nvidia quadro M1000M. After I did that I could finally deactivate the "Aspect Ratio" setting.
And voila, it finally works!