Upon resuming my machine, the background image turns white, and all of the windows have thick white borders around them.
This started happening after I "played" with my Nvidia drivers by upgading to the latest version. Tried to change/downgrade driver versions, reinstalling unity, but without luck so far...
Using a Dell 7559 with the Nvidia proprietary driver (nouveau just does not work well for me...), ubuntu 16.10 and latest kernel 4.10.1
Here is an depicting this situation:
Thanks!