slight stutter when turning in games (desperate)

in more tests i see in l4d its completly butter smooth if i don ot touch the mouse.

its a shame l4d doesnt have the ability to look left and right with the keyboard(only strafe) as i could navigate a whole level and it would be so smooth.

im wondering does this mean my razer is faulty and if so why doesnt tf2 show it as bad as l4d and why is the desktop fine?

uninstalling the drivers did not work so i must try to find a new mouse to try tomorrow with a fresh win 7 install.


any ideas chaps?
 
Rofflay said:
in more tests i see in l4d its completly butter smooth if i don ot touch the mouse.

its a shame l4d doesnt have the ability to look left and right with the keyboard(only strafe) as i could navigate a whole level and it would be so smooth.

im wondering does this mean my razer is faulty and if so why doesnt tf2 show it as bad as l4d and why is the desktop fine?

uninstalling the drivers did not work so i must try to find a new mouse to try tomorrow with a fresh win 7 install.


any ideas chaps?
Click to expand...

You could always borrow a friends ps/2 mouse and see if the problem is fixed
 
L4D is quite CPU hungry, when I was playing it at that resolution on an E6600 clocked at 3GHz, my CPU usage for both cores was normally rock solid at 100%. It might be CPU bottlenecking.

I'm on a 4GHz i7 now, and it never seems to go over 30%. I suspect that even a Q6600 would improve things (The source engine is reasonably well threaded, and does benefit from more than 2 CPU cores).

It's certainly not your mouse, otherwise it would be the same in other games or simply moving windows around the desktop.
 
could be your flicker rate for your monitor, getting a good quality screen over size and resolutions would help, but might not be the sole issue.

Also your CPU is bottlenecking the 4890. Every high end gfx card requires at least 3ghz, even 3.2ghz.
 
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i find it doubtful that cpu bottlenecking is the problem i mean...

its in all games for a start, its just l4d is by far the worst

and it only happen when using the mouse.navigate a level via keyboard and viola its perfectly smooth.

my montor is a dell 2007 1680x1050 32bit 60hz as well and seems working perfectly, if i have too ill test that too!!


anyways in a few hrs ill try a new mouse and keyboard and eliminate those.
 
Have you thought about whether it might be your monitor? The type of abnormality you describe could be an artefact of how LCD monitors refresh the screen - when you shift the whole screen view with strafing you find the refresh delay more noticeable as see juddering and tearing, blurring or smearing.

I know when I switched from CRT to LCD about a year ago, I suddenly noticed what you seem to be describing. I sent back my first monitor thinking it was a fault. My new one still has this effect, but it is less noticeable.

In fact, I no longer notice this because I think I've got used to using my LCD. When I first switched, though, it drove me crazy! I tried HL2, Bioshock, CoD4... all either juddered or went a bit smeary when strafing and looking at something up close. It was especially visible in Titan Quest, I recall.

I swapped back to my CRT and the problem went away.

I don't notice this any more after a year of gaming with my CRT, but if I get up close to something and strafe from side to side and consciously look for it, it's still there but I guess my brain has filtered it out.


EDIT: ok, nevermind. You just added a post saying it doesn't happen when moving with the keyboard, so that invalidates my hypothesis.
 
Well if it's the mouse I'd suggest it is either..

1) The CPU is bottlenecked, and the high message rate of the mouse isn't working well when the CPU is busy.

2) There is some interference with the wireless connection to the mouse.

3) The mouse is stuffed.

I'd missed the bit where you said you don't get the problem when moving with the keyboard.

How smoothly can you move windows around the desktop with the mouse? If you run prime 95, does moving windows around become problematic?
 
dont get me wrong strumpusplunket i know what u mean about strafing and yes that does exist on this lcd and i do notice it.strafing produces blurring and a little smearing but it generally still smooth.

its when i start the use my mouse to turn in l4d i get the horrible tearing/jitter on the other ai characters and its a lot worse than normal smearing.



also HazardO


1) The CPU is bottlenecked, and the high message rate of the mouse isn't working well when the CPU is busy.

perhaps ill try l4d later on my uncles quad core system.

2) There is some interference with the wireless connection to the mouse.


its a wired razer habu @ 1000hz 2000dpi.


3) The mouse is stuffed.

perhaps, ill again test another later

I'd missed the bit where you said you don't get the problem when moving with the keyboard.


yep running around in l4d without using the mouse is so smooth comapred to when mouse turning is introduced.


How smoothly can you move windows around the desktop with the mouse? If you run prime 95, does moving windows around become problematic?

havent got prime 95 atm im on vista i might try it,and window moving seem that they tear and smear an awful lot, my mate says his vista 64 premium does it too,i had it on xp tho which i thought was err a bit weird.you can clearly see the edges of the box window from my documents distort into tearing lines or step ladder effect when dragging across the desktop.

the mouse on the desktop seems smooth tho.i thought i had a problem with folders doing this on my last round of formats between xp and vista 64 when trying to elimate this problema few months ago but i gave up.folders would be quite slow coming up and tear when moved or dragged.
 
this tearing sems a lot like mouse turning in l4d and how is distorts the image with its jerky ness.its visable when l4d is ran in windows mode and you just keyboard strafe without the mouse.making it run full screen takes away all keyboard microstutter but mouse stutter remains!

perhaps its related :o also moving or draggina firefox window over say the my documents window u can see the firefox window lag when dragged leaving a trail.

weird too i thought i had my aero and option for folders setup to be snappy and lag free :/
 
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nah no hairs on the sensor i can assure you ah im going to just take l4d over to my uncles see see what its like on his and birng back his mouse/keyboard.


i was messing about in l4d checking cpu temps and usage etc.temps r fine 57c load and usage is 100% when using multicore option and 80% when not.

im pretty convinced by studying the jitter that when multicore is disabled in l4d options its a tiny tiny bit smoother.

perhaps this is really cpu related after all :(
 
I had exactly the same problem.

Turned out to be the gfx card over heating, have you got plenty of fans to move the air about. Ever since I added 1 extra fan I have been trouble free ever since.

Have you ran stress tests on your overclock, I had to turn my 6300 down from 3.2 - 2.8 and it is now rock solid.

Just a thought.
 
the last i checked my overclock was stable i never have blue screens just this damm jitter with the mouse.


i have ran tf2 there also and apparantly my cpu usage is 100% on both cores just like l4d but tf2 is mile and miles ahead in smoothness and 60fps.

gfx card temps are 54c idle and around 80c load which seems fine.
 
actually, if you can do 2 things.

First see if you can overclock your processor to 3.2 if its possible, I never worked with the E6 C2D.

Also this is sounding like the problems that were arising with factory overclocked cards with unstable memory clocks with the 4870's.
get rivatuner and set your 2D AND 3D memory clocks back to default levels and see if that helps you.
 
ok mates a few updates


i have had a few days to test a different mouse and i managed to install my l4d on another pc which is an ocuk built Q6600 3.2ghz 4gb 8800 GTX system.


l4d exibits the same turning jitteryness much overall i think its a bit smoother than my pc.

after fiddling around with both tf2 and l4d i can now see the same thing in tf2 when things get really hectic on the server.im at 60fps but it seems like lag on a 32 man server when in reality my connection never lags.

in l4d the dual core option seems to make things a little better so im glancing at my cpu wondering is it to blame?

its being used at 100% in both tf2 and l4d which im thinking as someone else said its causing some kind of low fps feeling in those when you have 60fps and are in a non demanding area graphically.


also Yurihyuga 2.8 400bus is my max limit here as my ram doesnt seem to go futher.maybe its my board but i cant no matter what voltage or settings or bios get past 400bus with 4 sticks of ram.



im full on raging here about this tbh.l4d now is unplayable and tf2 at times can be quite annoying as well.


can my cpu simply not handle these games smoothly?
 
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Is your ram overclocked to the max? Try bringing it down a fair bit and see if it makes any difference. If it's pushed too far it can have a detrimental effect on system performance.
 
Hmmm. Have you tried altering the RAM voltage to get a better FSB? Not my field of expertise (nothing is tbh) but I seem to recall some peeps having OC issues with 4GB RAM.

Also, a long shot, but you don't have any other USB devices plugged in when you experience the stuttering do you?

EDIT: couldn't see it mentioned above, but have you run memtest to see if any errors come up?
 
I had the same problem as my HDD was sharing IRQ with GFX card.

Moving my swap file to a different HDD pretty much eliminated the problem
 
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