Some questions on refresh rates

[Inverse Icarus]

I maintain my desktop @ 75Hz, and whenever i look at a 60Hz, my eyes start to hurt. is this psychological or is there a real reason for it?

what to laptops typically run at?

thanks

[Eli]

I know that changing from 70 to 80 or vice versa does the same for me. But since I cant notice the difference, I guess it's psychological.

When going down to 60 down, you can actually notice the screen "moving"(for lack of a better word).

[Inverse Icarus]

Originally posted by Eli
I know that changing from 70 to 80 or vice versa does the same for me. But since I cant notice the difference, I guess it's psychological.

When going down to 60 down, you can actually notice the screen "moving"(for lack of a better word).

yes, i see a "flickering" and then my eyes strain and i get headaches.

[DanS]

Normally, 60 Hz is sufficient to not get a headache. For comparison purposes, a movie runs at 48 frames per second (equivalent to 48 Hz), and a US TV at 60 Hz.

Some things to consider. Some lighting, especially in an office or school, has cycles as well. There could be unfortunate interactions between the two.

Also, some display technologies impact some people differently than others--such as some people seeing a "rainbow effect" on DLP projectors. Some technologies do not have real refresh rates--such as LCD screens.

Lastly, try changing the distrance between your eyes and display.

[Hurricane]

I would suppose distance is one major factor. That's why you have no problems watching TV at 60Hz but get headaches when using the same refresh rate on your computer display. I use 85 Hz myself.

[Urban Ranger]

Depends on the conditions, 60Hz can get you a headache.


Dan,

I thought the movies go at 25 fps?

[Ari Rahikkala]

I have to run my screen at 60Hz because of a cheapo graphics card that can't handle 1024x768@72Hz without distracting jitter, and pretty much the only way I can cope with it is making all backgrounds whose colour I can change completely black and using a very low brightness setting on my monitor. With more bright white on the screen I'd get eyestrain and a headache very quickly.

[Edan]

Originally posted by Urban Ranger
I thought the movies go at 25 fps?

IIRC, movies generally go at ~24 fps (something like 23.97 or something), with NTSC going at ~30 fps and PAL going ~25fps

I usually set my monitors at 75 or 80 hz.

[Hurricane]

Yeah, but isn't FPS a whole other thing than refresh rate? Play a game of Quake with 1024x768 pixels @ 80 Hz and you might get 75 FPS. Is that better than 800x600 @ 70 Hz and 100 FPS?

[Dis]

sometimes civ3 will crash my video drivers. I'm not sure what my refesh rate goes to. How do you check?

But when this does happen, any BB that has a white background looks real ****ty. It looks like the white screen is pulsating. Very hard on my eyes. Reinstalling my video drivers does the trick.

edit: I checked my advanced video card settings. It shows my refresh rate at optimal. But I don't know what my actual refresh rate is at any one time. Any ideas?

[Hurricane]

Usually you can find it by pressing the configuration buttons on your monitor, so try fiddling a bit with those.

[Dis]

FH: 81.42 KHz
FV: 100.04 Hz

whatever that means

[Rasbelin]

I always recommend 75 Hz as the minimum because then the chance of getting headache is smallest. However 85 Hz or more would be ideal, IMO. I'm using 100 Hz with both of my displays.

Diss,

your refresh rate is 100 Hz now.

[Dis]

yeah I figured it was the second one. I'm not sure what the first value is.

I admit I have never read the manual for my monitor . it's like reading instructions for a tv. You just plug it in and it works. Although maybe I should read my monitor instructions. I have things like moire, OSD position which I don't know the function of.

[Bereta_Eder]

at lower refresh rates the screen will "tremble".

however, make absolutely sure that your monitor supports the refresh rate you have set for it.

otherwise it might break down.