I have upgraded to Fusion 8.5 together with upgrading to Sierra. Since the upgrade, my Windows 8 virtual machine displays everything blurry when in full screen mode. It is as if there is a blur filter applied to the Windows screen output.
This happens only in full screen mode, not when I use single window or Unity mode. A screen capture from the Mac shows the full screen blur, a screen capture from within Windows does not show it. When I manually change the full screen resolution from 3840x1600 to 2560x1600, suddenly the image is crisp. But change the monitor to split view, so that the Mac sees a 1920x1600 display, and Fusion shows everything fuzzy again.
Solution to get it at least sharp again:
I had the setting Display | Virtual Machine Resolution | Full Screen at "Resize to fit screen". Once I changed it to "Center in the screen", and set the full resolution manually, the display is sharp. Unfortunately, this is hugely annoying when moving VMs between screens.And it indicates that the problem is caused by screen scaling kicking in when it shouldn't, maybe some off by one error in viewports.
What exactly do you mean when you say blurry? This word refers to a specific effect where the image appears out of focus: https://en.wikipedia.org/wiki/Gaussian_blur
Can you take a screen shot when the screen is "blurry" and then share it on the thread?
Is VMware Tools running? What version of Fusion did you upgrade from? As you have upgraded Fusion, it may be worthwhile to re-install VMware Tools on the Guest OS.
There was a known issue with the host GL driver on OS X 10.11, but as you are now running Sierra, this may not apply anymore.
I wonder if the logs indicated anything when the "blurry" issue occurs. For more information, see Collecting diagnostic information for VMware Fusion (1003894).
I still see this problem with Fusion 11.5.1 and macOS 10.15.2.
It only happens when I show the virtual machine on an external 1x monitor in full screen mode (Resolution is 3840x1600).
Both resize and centered use the full resolution 3840x1600 inside the guest system (Windows). My impression is that in resize to fit mode, VMWare attempts to do some scaling to an output resolution just 1 pixel off. This is most noticeable with text, as the ClearType anti aliasing gets into the wrong places, and text is now ugly to look at.
I do not see the problem with resize to fit when using Single Window mode.
The resize option gives the display:
And the centered option the display:
This was supposedly fixed in 11.5.1. You might try manually updating the VMWare tools in the guest.
If it's a very old version of windows, that may be the issue too - earlier versions don't have support for scaling.
