On Tue, Mar 30, 2021 at 06:13:28PM -0400, D. Hugh Redelmeier via talk wrote:
TL;DR: at least sometimes 30Hz is fine.
Everything depends on your individual eyes, what you use the monitor for, and the setting of the monitor use.
For my desktop use, 30Hz is actually fine. It's what I've used for over six years. I have, within arm's reach, all I need to switch to 60Hz but it hasn't seemed worth the reconfiguration effort.
I find a lot of youtube content is 60 fps, as is much of the content I have on mythtv so due to my video card not having HDMI 2.0, I run at 1080p@60Hz rather than 2160p@30Hz. Maybe someday I will update the video card to fix that, although none of the mythtv content needs 4K. X annoyingly thinks that when it detects the TV, it should run at 4K@30Hz rather than the explicitly configured 1080p@60Hz. This happens every time I change inputs on the TV.
Details of my use:
- most of what I do is fairly static. I don't seriously watch videos on my desktop (YouTube seems fine). I don't play games.
- my monitor is 39" and perhaps 24"-30" from my face. UltraHD.
- I wear special fixed-focus glasses when using the monitor (as opposed to my regular progressive glasses
Gamers want refresh rates well above 60Hz. To get that, they seem to be willing to choose lower resolutions. That would be a terrible trade-off for my use.
Films are traditionally 25 frames/second (each frame is flashed twice by traditional projectors).
Well 24 unless you are in europe where they run the movies 4% fast when shown on TV. Shown 0.1% slow on north american TVs. -- Len Sorensen