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I've found that nvidia-settings is not supported in Ubuntu 25.04, at least the 
settings are not saved.
Resolution and refresh rate are managed in Settings\Display but I find playing 
games creates remarkable eye-strain which leads to blurred vision and I fear 
other vision problems longer term.

I've found multiple accounts of people running into this and returning
to Windows.  I don't see an alternative given the seriousness of my
vision problems.  I've uninstalled my games and have a dual boot setup
to support gaming, but the ENTIRE reasoning for this is protecting my
eyes from Ubuntu's video implementation.

Here is one account of someone dealing with this problem:
https://www.reddit.com/r/linuxquestions/comments/180fav0/linux_is_killing_my_eyes_to_the_point_im_back_on/

Trying to keep up with Nvidia is quite the task, but given Nvidia's
place in the GPU market, it has to be done.

Here are settings in nvidia-settings that are not supported in Settings\Display 
I've tried fiddling with to reduce eye strain:
XScreen0\OpenGL Settings\Image Settings --> High Quality
XScreen0\Antialias Settings\ --> Enable FXAA
XScreen0\Antialias Settings\Anisotropic Filtering --> Override Application 
Settings\16x
GPU0(Nvidia RTX4090)\DP-4(Samsung LS49AG95)\Controls\Color Space -->  YCbCr444  
[does not change from RGB]


Root Cause:  beats me.  There are so many options and esoteric features 
involved with GPUs and video performance, I don't have the background to try to 
uncover what medically is going on, but it's clearly bad. This is a real 
problem, and the consequences for Linux users are real.  Driving home last 
night I found all street lights had a complex, somewhat pixelated haze around 
them.  

Possible Approaches:
- Reach out to Nvidia.  They have the resources to dig into the medical affects 
of poor video configurations. Perhaps they would fund an initiative to support 
this work.

- Review the research:

----here is research----- 
Digital Eye Strain: A Comprehensive Review
https://link.springer.com/article/10.1007/s40123-022-00540-9

Management of Digital Eye Strain
https://www.tandfonline.com/doi/abs/10.1111/cxo.12798

Eye-related pain induced by visually demanding computer work
https://journals.lww.com/optvissci/fulltext/2012/04000/eye_related_pain_induced_by_visually_demanding.13.aspx
  

Image Modification to Reduce Eye Strain
https://link.springer.com/chapter/10.1007/978-3-030-88919-7_17

** Affects: gnome-shell (Ubuntu)
     Importance: Undecided
         Status: Incomplete


** Tags: bot-comment
-- 
Video configuration problems: results are destroying my eyes
https://bugs.launchpad.net/bugs/2119415
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