DiRT Rally 2.0

DiRT Rally 2.0

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Montago Mar 16, 2019 @ 2:30am
Significant input / steering lag ?
Try this:

Drive SLOWLY at 10 KPH / 8MPH in New Zealand with a Ford Fiesta R5

Yank the steering wheel from center to 45-90 degrees

Notice how much later the car actually changes directions

I've been telling myself that it was understeer that made it hard to drive in NZ

But this huge 500-1000ms delay seems to be the cause

I tried adjusting saturation and linearity - none of it helped .. and then i noticed the steering delay
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Showing 1-15 of 34 comments
are you sure you have old-fahioned vsync turned off? That should be the first item on any check-list to re-check. Old-fashioned vsync combined with today's budget 60Hz-"hold-type" monitors is well-known to cause input-lag.
fedorico Mar 16, 2019 @ 3:29am 
Originally posted by Simon said DIE ♥♥♥♥♥!:
are you sure you have old-fahioned vsync turned off? That should be the first item on any check-list to re-check. Old-fashioned vsync combined with today's budget 60Hz-"hold-type" monitors is well-known to cause input-lag.

Is it the same if you have an 144Hz monitor?
Originally posted by fedorico:
Originally posted by Simon said DIE ♥♥♥♥♥!:
are you sure you have old-fahioned vsync turned off? That should be the first item on any check-list to re-check. Old-fashioned vsync combined with today's budget 60Hz-"hold-type" monitors is well-known to cause input-lag.

Is it the same if you have an 144Hz monitor?
no experience on those as I am cheap, into photography and all the shiny new stuff is either curved (UGHHH!) or useless for color-acuracy and uniformity AND usually bloody expensive...

...but I would actually give that a try and limit frames independantly using the driver-controls.
fedorico Mar 16, 2019 @ 3:44am 
Originally posted by Simon said DIE ♥♥♥♥♥!:
Originally posted by fedorico:

Is it the same if you have an 144Hz monitor?
no experience on those as I am cheap, into photography and all the shiny new stuff is either curved (UGHHH!) or useless for color-acuracy and uniformity AND usually bloody expensive...

...but I would actually give that a try and limit frames independantly using the driver-controls.

OK, I will give it a try, thanks anyway :)
Montago Mar 16, 2019 @ 6:09am 
Originally posted by Simon said DIE ♥♥♥♥♥!:
are you sure you have old-fahioned vsync turned off? That should be the first item on any check-list to re-check. Old-fashioned vsync combined with today's budget 60Hz-"hold-type" monitors is well-known to cause input-lag.

Dirt Rally 1 with vsync on doesn't have such lag..

And i don't believe that vsync can cause such a long delay. A maximum of 3 frames (24-32 ms)
Gorgar66 Mar 16, 2019 @ 6:15am 
Originally posted by Montago:
Originally posted by Simon said DIE ♥♥♥♥♥!:
are you sure you have old-fahioned vsync turned off? That should be the first item on any check-list to re-check. Old-fashioned vsync combined with today's budget 60Hz-"hold-type" monitors is well-known to cause input-lag.

Dirt Rally 1 with vsync on doesn't have such lag..

And i don't believe that vsync can cause such a long delay. A maximum of 3 frames (24-32 ms)
Absolutely agree.
did you try it then?
Also, which hardware? I saw a thread recommending a driver down-grade for nvidia-users floating around these days.

https://steamcommunity.com/app/690790/discussions/0/3398435622556363809/
Last edited by Simon said EAT DUST PLAYER_1 !; Mar 16, 2019 @ 6:18am
Berg DK 81 Mar 16, 2019 @ 6:21am 
It doesn't happen for me but I am using an xbox one controller, There is no chance its vsync delay though.
Terrapin Mar 16, 2019 @ 6:24am 
Doesn't happen for me. I know you said you adjusted it, but it has to be a Saturation/Linearity problem I would think?
Originally posted by Berg DK 81:
It doesn't happen for me but I am using an xbox one controller, There is no chance its vsync delay though.
could it be that this problem is related to some folks oversaturating one or two of their respective usb3-channels and/or weighing them down with older pre-usb3 devices?

For those I always recommend to study the owners' manual of their mainboard / laptop and figure out where to give their wheels and pedals // gaming-controller a fresh channel to themselves.

Or maybe unplug your unused games-controllers when you are playing Codemasters' Games as they have a bit of a history of eyperiencing weird behaviour.

Another point of failore seams some steam big-picture-mode middle-layer thaatsome updates turned on by themselves without people telling them to.

edit: sorry for all the typos, typing in qwertz after adopting neo2 is giving me problems...
Last edited by Simon said EAT DUST PLAYER_1 !; Mar 16, 2019 @ 6:33am
Terrapin Mar 16, 2019 @ 6:33am 
Originally posted by Simon said DIE ♥♥♥♥♥!:
Originally posted by Berg DK 81:
It doesn't happen for me but I am using an xbox one controller, There is no chance its vsync delay though.
could it be that te problem sis related to som folks oversaturating one ortwo of their respective usb3-chanls ajd/or weig down tebndth with older pre-us devices?
For those I always recommend to study the owners' manual of their mainboard / laptop and figure out where to give their wheels and pedals // gaming-controller a fresh channel to themselves.

Or maybe unplug your unused games-controllers when you are playing Codemasters' Games as they have a bit of a history of eyperiencing weird behaviour.

edit: sorry for all the typos, typing in qwertz after adopting neo2 is giving me problems...

Yeah, overloaded usb is the culprit for the stuttering that many people are mistakenly blaming graphics optimization for. Not that the usb thing isn't an issue, just that optimization is not causing the problem. However in this case my gut feeling tells me it's a wheel setting problem.
Berg DK 81 Mar 16, 2019 @ 6:36am 
USB is digital so cant see how it would delay input, usb issues is typically not supplying enough power which results in peripherals shutting off or ffb stops working etc.

If its an isolated case to the OP i would suggest checking drivers for the wheel and maybe reverting game settings to default?!
Originally posted by Berg DK 81:
USB is digital so cant see how it would delay input, usb issues is typically not supplying enough power which results in peripherals shutting off or ffb stops working etc.

If its an isolated case to the OP i would suggest checking drivers for the wheel and maybe reverting game settings to default?!
it is a problem with different versions of the "digital" usb-protocoll as well as polling-rate creating too much overhead and thus polluting the bandwidth of a single channel. E.g. people putting multiple high polling-rate devices like high-end gaming-mice, wheels and controllers on one single channel... (oftentimes via a hub to minimise cabling)
...so it is an inherent digital problem. Hope this explains it well enough for you.
Last edited by Simon said EAT DUST PLAYER_1 !; Mar 16, 2019 @ 6:43am
Jeetn Mar 16, 2019 @ 6:46am 
i've turned my graphics seriously down and the lag is allmost away. but the game doesn't like turning vsync off.
Montago Mar 16, 2019 @ 6:49am 
Originally posted by Simon said DIE ♥♥♥♥♥!:
Originally posted by Berg DK 81:
USB is digital so cant see how it would delay input, usb issues is typically not supplying enough power which results in peripherals shutting off or ffb stops working etc.

If its an isolated case to the OP i would suggest checking drivers for the wheel and maybe reverting game settings to default?!
it is a problem with different versions of the "digital" usb-potocoll as well as polling-rate creating too much overhead and thus polluting the bandwidth of each channel. E.g. people putting multiple high polling-rate devices like high-end gaming-mice, wheels and controllers on one single channel...
...so it is an inherent digital problem. Hope this explains it well enough for you.

You fail to explain why the delay isn't present in DR1 with similar settings ...

I'm aware that Saturation / Linearity affects how fast steering occurs - but in my case im throwing the wheel to 90 degrees which shouldn't be afftected by Saturation / Linearity - and then see a significant delay in WHEN the car actually steers.

I'm not at home right now so i can't test VSYNC ..

Just after driving DR2 i went out to my real car to see how fast i can feel / see the car steer after yanking the steering wheel - and to no surprise its (perceived) instant.
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Date Posted: Mar 16, 2019 @ 2:30am
Posts: 34