I have same problem z50-75... plsss AMD tell us something good tip.
I think that the best will be to sent `issue report` to AMD...
I did it.
Maybe you can check the news about this issue at Lenovo:
I already did all of that i hope that amd will do something
With new 16.4.1 drivers
DITHERING IS STILL NOT WORKING on most LCDs (tested NV140FHM-N41 fullHD IPS) and dithering works just on one from tested LCDs (LP140WF1-SPK1)
bios version 015.042.000.003.045 787
bios part number BR 45787.ts5
bios date 2015/01/29
on tested similar HP notebook IS DITHERING WORKING FINE even with older drivers:
bios version 015.033.000.004.046 101
bios part number BR 46101.001
bios date 2015/02/03
IS IT JUST LENOVO ISSUE???
Z50-75 here as well, it is unbelievable that a screen can look like this in 2016 on a MIDRANGE LENOVO that's boasting gorgeous FHD resolution. It may be full HD but FAR from gorgeous because of the ugly gradients.