Stuttering at high fps! ($10 paypal if you can solve)

cozm01

cozm01

cozm01

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Joined
29 Nov 2004
Posts
349
So I'm playing a OpenGL game(Q4) which can either be played at 60 or 90 fps. 60 is fine, but 90 even though the framerate is solid, it gives stutters, like its 30fps. The stuttering is slight, but its enough to notice and after awhile it will give me a headache.

I have a completly different second system which behaves the same way.

Viewsonic vx922
8800GTX
e6600
Raptor RAID 0
2 gig
Vista / XP
X-fi

Samsung 930BF
6800GT
3.4ht p4
Samsung HD
1gig
XP
Sound Audigy 2zs

Now I don't get puzzled easily, but I just can't work this one out.
My refresh rate in windows is 75hz and in game 75hz, using monitor controls I can confirm its set at this correctly. This doesn't happen for everyone. Some people with same monitor and graphics card run it fine (drivers included)

Things I've gathered so far:
- Tried various monitor drivers.
- Tried Nvidia drivers, old, current, beta.
- Not connection related. (tested offline)
- Not low performance connected, my fps is always max.
- CPU, RAM is always below 60%.
- Not O/S specific.
- Clean installation doesn't help.
- In-game refresh and vsync commands don't help.
- Different resolutions in game and windows don't help.
- Disabling X-fi sound.
- Latest sound drivers.
- Forcing vsync or disabling it through windows.
- Defrag didn't help.
- Deleting/increasing page file didn't help.
- No game commands helped.
- No windows processes are taking up anything.
- Tried lowest gfx settings, same.

I'm starting to think it could be power supply?
 
sid said:
refresh rate should be 60hz over DVI to the vx922 shouldn't it?

sid
Click to expand...

60hz is worse.


Resolution Recommended
and supported
1280 x 1024 @ 60, 75 Hz
1024 x 768 @ 60, 70, 75, 85 Hz
800 x 600 @ 56, 60, 72, 75, 85 Hz
640 x 480 @ 60, 67, 72, 75, 85 Hz
720 x 400 @ 70 Hz
1280 x 720 @ 60 Hz (720p)
 
Yes Dokko, but latest patch allows 90fps and 99% other people are fine.

thx for link, but I've tried that, I'm quite confident I've tried every combination of in game command, even tried with help from mod coders and players.
 
@ GuruJockStrap, yes, 3x buffer don't help

@ JamesU2005, both xp/vista

@ mattbill, 2 gig Geil, PC26400 DDR800, 4-4-4-12, 2.1v

@ Black Dog, no difference

@ greeny_fastcar, intresting but didn't work, process prority either.

@ dokko, same happens on non dual core system, plus others with dual core are fine. tested r_usesmp 1/0.

Thanks all for you help, my quest continues! :(
 
So today I tried a CRT.

r_swapinterval "0" as always and vid_restart after entering r_displayrefresh.

r_displayrefresh "75" > problem still there.
r_displayrefresh "85" > problem solved.
r_displayrefresh "100" > even smoother. (though not perfect, the difference between 75 and 100 was like night and day)


What about all those people claiming to be playing 90fps smoothly with a TFT, few possible options...

A) You just don't play enough to notice.
B) You need your eyes tested.
C) Your gfx are too dark or picmiped to notice. (warsow is quite textureless and plays at 90fps fine)
D) Your using a program (only available in XP atm I think) to force your monitor to play 85hz at lower resolutions (ie. 800x600)
E) There could be an undlying problem that is covered up by higher refresh rates. (I find this hard to believe considering the various amount of hardware / software its been tested on)

So verdict is still out whether this caused by engine smoothness etc, or just a natural hardware limitation, either way 90fps @ 85hz plays fine and can be done on TFT.
 
Theguy said:
not that i can add anything, but i see your on toms H forum as well! - did u have any luck over there?
Click to expand...

To be truthfull there are just as many clever people there as here. Though my problem was quite misleading, so was difficult for anyone to give me a straight answer. but ye, problem solved-ish, see above.
 
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