After I have switched my display frequency to 160 hz (old crt), my QW looks like this:



WTF? I've tried fiddling with the gl_max_size command (from 1 to 8000), gl_texturemode is "gl_nearest", gl_picmip 16, gl_miptexlevel 0

Really disturbing. Looks better when textures all full but still a bit different - the colours are like shit anyway.
My desktop color depth is 32 bpp (altering doesn't change anything at all)., frequency is 75 hz (can't get it to change somehow)

Funny thing is when I set displayfrequency at 75 hz - everything looks great. But going above that limit fucks it all up.

Or maybe the monitor does not support higher resolutions than 75 hz? It should - Samsung Syncmaster 753 DFX is supposed to run at 160 hz in lowest resolutions.

how have you set the colors in ezquake (assume you are using it)?
looks like you have a color problem, see if you have an option in the settings with color depth and set it to 32-bit or desktop settings.
could also be that your monitor doesnt support your resolution with that color depth with that refresh rate.
the human eye cant see any difference between refresh rates over about a hundred so using higher refreshrates that 100 is pointless, just disable vertical sync =)

The color depth is 32 bpp, nboth desktop and QW.
You know, The higher frequency the better you feel - cl_placebo 1

But you may be right with your third statement.
But still, changing frequency over 75 makes it look like shot. How could that be if, according to the manufacturer< it sgould run at 160 hz?

EDIT: Ok, problem solved to some extend - the monitor is somehow unable to display more than 100 hz (800x600) despite the fact it should run for at least 130-140 Hz.

If you try to force your monitor's refreshrate something that is not supported, ezQuake will start looking like washed out (extreme contrast). It seems you realized that with your edit.

You need to check the manufacturer's reported vertical/horizontal scanning rates (manual, internet, where-ever) and report them here and I can calculate the maximum available refreshrates for any given resolution on that monitor.

Also, never forget to install monitor's .inf to get those higher refreshrates to work. With default driver Windows will just not go there.

According to the manual of this samsung syncmaster 753dfx - http://www.eserviceinfo.com/downloadsm/26507/Samsung_SyncMaster%20753dfx.html - the vertical/horizontal scanning rates are:

Scanning Frequency Horizontal : 30 kHz ~ 70 kHz
Vertical : 50 Hz ~ 160 Hz

I use 640x480 in QW, and, according to some calculations this monitor should run at 134 hz with. But I might be wrong about it.

I think I've installed the proper monitor drivers from the manufacturers site and somehow I can't set my desktop refreshrate more than 100 hz in 800x600.

You can use this calculator to determine which refresh your monitor can handle. Note: only CRT, of course.

Does not take timing methods into account, making results more or less inaccurate. For example 1024*768 @ 130kHz can't be 160,81Hz according to my experience, using DMT it can go as high as 155Hz (pf227b).

You conclusion does not take into account that raz0 is a n00b

tell him to join #qwrookie then!

As a rule of thumb I've always worked out max refresh rate with the following formula, there is probably a bit of leeway here:

Horizontal Frequency / Height / 1.1

Can we get a screenshot of what it looks like with 75hz when it looks "fine" ?

It is possible you have some kind of mega-pro config which sets different settings based on what hz it detects

There u go:

No. It is exactly like I said above:



Notice the "unsupported" 130Hz picture compared to 120Hz picture. For some reason, this is how ezQuake works.

The fix is to get proper drivers (monitors don't actually use drivers, only an .inf file that tells your windows what the scanrates/refreshrates are) and use proper refreshrate. You can get around 140Hz at 640*480, 100-120Hz at 800*600 and 85Hz at 1024*768.

Try unchecking this checkbox:

(Hide modes that this monitor cannot display)

On the screenshot it's greyed out probably because I don't have any monitor driver installed (not even the general "Plug & Play" one)

I have one confirmed case where ticking off that check box solves 16bit colors on higher display frequency issue.

Edit: I've been told this setting is related to that checkbox too. NVIDIA only.

I dont know what causes this, it has happened to me also sometimes...



Solution : vid_colorbits 32 in console, and vid_restart if needed after that ...


you can thank me later

What output do you get from vid_showfreq ?

"Possible display frequency: 60, 70, 72, 75, 85, 100, 120, 140, 144, 150, 170, 200, 240"

Try the command again with the option hide modes that this monitor can't display and you have your max supported refreshrate visible. If it's limited to something like 85, I guess you have to take on my advice after all.

I provided the data you'd requested just under your earlier advice Renzo.

I have the monitor's drivers from the manufacturer's site already. I cannot hide the modes the monitor can't display because, oddly enough, the click-box is inactive.

Somehow, my best refresh frequency in Windows is 100 hz (800 x 600, 32 bpp), while in Qw I'm able to run it in 120 hz without problems. Perhaps, If I lowered the resolution to 640 x 480 in Windows, my refresh rate would improve. I'm 800 x 600 in the lowest of the resolution for my monitor to achieve.

No, actually you didn't. I was referring to vid_showfreq command in ezQuake, after unchecking that option bolded in the reply above.

EDIT: argh... try unchecking/checking that other box under nvidia drivers. Obviously anything above 150Hz on that ezQuake list is fail.

KP: it doesn't work

Renzo: I created a custom resolution (640 x 480 32 bpp, 139 hz - with 140 hz my screen goes black) and I cap my fps with 834. Perhaps it is the absolute peak this monitor can display.
Still, my desktop refresh frequency is 100 hz according to what my Windows tells me. I'm a bit confused then - is it really possible to enforce QW to run at the frequency actually higher than the one used at the desktop? (with 139 hz QW looks ok, with 140 hz still like shit, so perhaps it is really probable after all)

Of course it doesn't work, there was absolutely no way it would since we are talking about ezQuake refreshrate bug here.



Basically you should be able to run similar refreshrates under similar resolutions. Not all games implement something like this properly, but if there was a way of doing so it should work.

Now, the only REAL way of measuring your refreshrate (or actually checking) is from your monitor's own OSD menu. Usually monitor OSDs have some sort of infoscreen that states resolution and refreshrates, maybe try finding such from your monitor's OSD. If you can't run some refreshrate on desktop but game allows it, I have a reason to believe it just doesn't work properly (but it might do so).

well this is the screenshot kloze posted :






this is a screenshot i took of the same location, 16 bit color ....





same location but 32bit color :






conclusion: klozes first picture very much looks like 16 bit colormode , thats why I thought it would help ...


when I switch to 800x600 from 640x480 I get this effect, dunno why but have to do vid_colorbits 32 and vid_restart to enforce 32 bit color, even if its in my cfg already ...

I can see graduations even at 32bit.