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Well I like the dell but motion is choppy like it frame skips or something with any kind of motion. Best seen with ULMB or vsync on. Just wondering if anybody here has heard of this complaint. Have a good one!

Manimal 5000 wrote:Well I like the dell but motion is choppy like it frame skips or something with any kind of motion. Best seen with ULMB or vsync on. Just wondering if anybody here has heard of this complaint. Have a good one!

Is this worse than other ULMB, LightBoost or other blur reduction (strobe-backlight) displays?
Or is the Dell the first display you've tried with ULMB?

Does it look choppy with http://www.testufo.com/photo ?

For motion perfection during strobed modes -- are you making sure framerate is fully capping out? If you cannot go 120fps, try 85Hz ULMB or 100Hz ULMB instead. 85fps@85Hz ULMB looks a LOT better motion-fluidity-wise than 110fps@120Hz.

If you still get microstutters even at fully matched framerates, have you verified your mouse is NOT the weak link for microstutters?

Blur reduction (ULMB) amplifies visibility of microstutters. Everything is so clear that the microstutters really show up. That's normal. For best motion clarity during motion blur reduction modes, you want framerate matching refreshrate matching stroberate, AND also a high-poll-rate mouse.

Chief Blur Buster wrote: For best motion clarity during motion blur reduction modes, you want framerate matching refreshrate matching stroberate, AND also a high-poll-rate mouse.

I get 300fps / 500hz mouse. It happens with or without v-sync/ fastsync / g-sync / ULMB. ULMB shows it better which is unfortunately the mode I prefer. I'ts not a normal double image judder thing. The scene just jumps/skips forward 2 or 3 times per second. Im going to try another monitor tonight and report back.

Well it does seem to be the mouse - my WMO's do it. The Finalmouse not so much. Do you think these the same"mouse microstutters" described http://www.blurbusters.com/faq/mouse-guide/? If so, I never thought I would notice them but they are around 5 per second as described and holy crap I notice it.

Update: I thought 1000hz was all about reducing lag, but the smoothness is phenomenal. There is minor skipping so 2000hz would be better. That's just silly though when all that's needed is some sort of "v-sync'd" mouse. I think the old quake engines had something like that ("sync every frame" or something). Anyway you learn something every day.

Yup.

An ordinary 125Hz mouse running at 120fps@120Hz VSYNC ON, produces 5 crappy microstutters per second from the beat-frequency effect.

You definitely need 1000Hz+ mice in the modern era of 120Hz+ gaming monitors.

Glad your issue is fixed!

Thanks Chief. I had forgotten I uninstalled Sweetlow's USB overclocker so was not running 500hz after all.
Overclocking software is here if anyone is interested:
http://www.overclock.net/t/1589644/usb- ... ng-2000-hz
I ran setup.exe and it worked fine regardless what the readme says.

Manimal 5000 wrote:Thanks Chief. I had forgotten I uninstalled Sweetlow's USB overclocker so was not running 500hz after all.
Overclocking software is here if anyone is interested:
http://www.overclock.net/t/1589644/usb- ... ng-2000-hz
I ran setup.exe and it worked fine regardless what the readme says.

So your problem in first post was because of 125Hz mouse polling?

125hz had terrible frame skipping (microstutters), 500hz better. 1000hz even better. There is also a minor decrease to input lag. To completely eliminate this "beat frequency effect", I think mouse inputs could be synced with framerate. Maybe something like Nvidia's fast-sync but for mouse inputs. That's just my theory.