This really isn't very complicated. Once you understand it you wont have a problem. You should always see that image regardless if you're on limited or full. The key is to have your display and your source synced at the same rgb level. If both are at limited you'll be fine, if both are at full you'll be fine.
RGB works by sending 3 values, one for red, one for green, one for blue. R-G-B. The values are 0 (black) through 255 (white). When in limited mode, pure black is 16 and pure white is 235. Internally your pc and your display are really full RGB. So when using limited, there is translation going on. The easiest is to just take pure black, rgb value (0,0,0). If your PC is set to limited, your PC will send this as (16,16,16) not (0,0,0). Now your display if set to limited will accept this at (16,16,16) and translate it to (0,0,0) to display it. So black looks black.
If your display is set to limited and your pc is set to full, you send (0,0,0) and the display will accept this and display (16,16,16). But if your pc also sends (16,16,16) as a sort of greyish, because the display is limited, it will display (16,16,16) as pure black (0,0,0). So when PC is full and display is limited, your blacks will be crushed because all colors from 0,0,0 to 16,16,16 will be displayed as true black.
If your display is set to full and your pc is set to limited, the opposite happens. When the PC wants to send pure black (0,0,0) it will translate it to limited black at (16,16,16). Your display expecting pure black at (0,0,0) receives (16,16,16) and displays all blacks as a dark grey. Result is you get washed out colors.
So, the solution is to simply pick one and make sure all your devices are using it. I always use FULL myself (I play a lot of games and use desktop a lot on my projector). Then in the display you also set it to FULL (or enhanced). All modern game consoles and roku type devices support both limited and full so it's not a problem. If you want all to use limited, that's fine too but there will be translation happening so in theory the full should look a little better. (This gets more complicated based on what the video is encoded in though, as they may not even be encoded in RGB). Note: picking limited instead of full is fine to just make sure all devices are set to that. Video/movie content is supposedly only mastered in limited range.
So the short message is just pick either full or limited and make sure the source and display are matching and you should be fine.
Using your test image, you will always see boxes 1-15 differently shaded as long as your displays are either both limited or both full. When there's a mismatch then those boxes may look the same because one of the two will be translating values below 16 to 0 and above 0 to 16 etc.
Video: JVC RS4500 135" screen in pure black room no light, htpc nvidia 1080ti.
Audio: Anthem mrx720 running 7.1.4, McIntosh MC-303, MC-152, B&W 802d3 LR, B&W HTM1D3 center, B&W 805d3 surround, B&W 702S2 rear, B&W 706s2 x 4 shelf mounted for atmos, 2 sub arrays both infinite baffle: 4x15 fi audio running on behringer ep4000 + 4x12 fi audio running on 2nd ep4000.
Last edited by markmon1; 07-05-2018 at 09:26 PM.