Nvidia - Disable Dithering Fix (Windows)
The linux nvidia control panel has an option to disable dithering. It does not work though. At least, it did not work for me. Still got eye strain and filming from my phone shows a flicker.
There is also an option (same screen shot) to lower the number of colors via "Color Range". I tried setting it to "Limited". It visibly reduced the number of colors on the screen, but still seemed to both give eye strain and have a flicker when filming from my phone.
Sorry, but is there a way to disable Nvidia dithering in windows or not?
Short answer: Nothing that has been empirically verified by anyone
Long answer: I'm beginning to suspect certain GPUs are hardwired with the VBIOS to always have dithering or other image quality issues by default, so even the case of "working" software solution such as ditherig.exe (for Intel and some AMD GPUs), if the program stops working or the internal GPU state changes due to external factor (vague I know), that can cause dithering to be re-enabled.
All the Nvidia cards I tested had (gtx660, gtx1060, possibly others I don't remember) had one colour setting (ie RGB 8bit, YCbCr444, etc) where they did not dither. I believe what was occurring was that there was a 'native' colour setting for the card, which was then dithered to convert to other colour formats. Unfortunately, I recall the dither-free setting being different from card to card, however you can still experiment and see how you react to different settings.
This is what my phone camera showed. There is a very obvious flicker.
- Edited
I can film my laptop which has no eye strain and there is no flicker. It is not an artifact of capture from the phone.
Here is another video showing temporal dithering on a Macbook Pro. This video is shot from an iphone 11 at 240fps: https://www.youtube.com/watch?v=9JCQ_p4olWw
caboy You have observed the moiree effect: https://en.wikipedia.org/wiki/Moir%C3%A9_pattern
This picture is what you have seen: https://en.wikipedia.org/wiki/Moir%C3%A9_pattern#/media/File:Moir%C3%A9_pattern.png
Notebookcheck uses magnification, slow motion, and a steady camera setup to reveal temporal dithering (a strong variant in this case). You did not magnify, did not use slow motion, and you moved your hand a lot. This is not adequate for detecting temporal dithering.
When using the control panel's switch, it may be difficult to consciously notice the differences. You are more likely to see changes on solid dark gray colors, and if you change the setting with your keyboard back and forth. You may also see a slight change in gradients. The changes may be more visible if you set the color depth to 6 bit instead of 8. In my experience they are most visible when using 6 bit depth and static dithering.