Never seen a keyboard cause swamp cursor till the Steelseries 6gv2 - Overclock.net - An Overclocking Community

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Never seen a keyboard cause swamp cursor till the Steelseries 6gv2

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post #1 of 48 (permalink) Old 12-21-2014, 08:09 AM - Thread Starter
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I have 3 keyboards on my desk: a $15 Logitech K-120 membrane keyboard, a $100 mechanical Steelseries 6gv2, and a $100 mechanical Coolermaster Quickfire XT.

First off, I never expected to see a difference between keyboards when connected over PS/2, but there definitely is between these keyboards. With the Steelseries plugged in on PS/2, mouse movement is significantly more sluggish than the Coolermaster over PS/2, and more sluggish than the $15 Logitech K-120 over USB.

If you compare mouse movement for all three keyboards connected over USB, the Steelseries loses again, and the the $15 Logitech K-120 wins. It's not surprising the Coolermaster does bad here since it's a 1000hz polling rate keyboard over USB. Plugging in a 1000hz keyboard with a 1000hz mouse bogs down your system pretty bad, and gives you noticeably more choppy field of view pans in first person games. Multiple high polling rate devices on a system does not work well. It's possible that if the USB controller was operating in MSI mode, instead of line based interrupt, it might be different, but I don't think most or any integrated USB 2 controllers will do so.

Due to most motherboards having only a single transaction translator on USB hubs, mixing USB 1.1 devices (which most keyboards are), and USB 2.0 mice, should have negative consequences as well such as described by Cypress here:

http://www.cypress.com/?id=4&rID=54981

I would like to find a USB 2.0 keyboard operating at 125hz to test the difference, but I can't find any that exist. Anyway, there does seem to be a large difference in mouse response between using different keyboards, which I would never have expected until I bought three and tested them all back to back.

Tests were done using two different motherboards, the Asus P8Z77-V + Gigabyte z77 UD5H, and two different mice, Kana v2 + Logitech's AM010 mice. If any keyboard company wants to send me a keyboard to test if your keyboard is indeed crap, then I'll be happy to test it, because most of them do seem to be pretty bad. Otherwise, you should probably just reverse engineer the $15 Logitech or see if there's any benefit to developing a USB 2.0 125hz keyboard for gaming.

The Steelseries 6gv2 appears to use Cypress and/or Datacomp parts. I'm not sure if it's Steelseries fault the keyboard is bad, or one of those companies.


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post #2 of 48 (permalink) Old 12-21-2014, 09:11 AM
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On end what is better 6Gv2 on PS/2 or USB ?

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post #3 of 48 (permalink) Old 12-21-2014, 10:27 AM - Thread Starter
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Quote:
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On end what is better 6Gv2 on PS/2 or USB ?

Wasn't much difference between the two on the Steelseries, probably PS/2, but it's hard to say because the difference is small. The $15 Logitech K120 was better than either method with 6gv2 over USB or PS/2. The Steelseries gives you that heavy feeling on the cursor where it comes up just short of flicking where you want it to.

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post #4 of 48 (permalink) Old 12-22-2014, 01:31 PM
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Funny...
I noticed the mouse felt different now that I have Ducky shine 4 keyboard tongue.gif

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post #5 of 48 (permalink) Old 12-22-2014, 01:42 PM
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Well, all of that is just worthless without any explanation for either 1. how the "feel" exactly changes or 2. how the keyboard could possibly interact with the mouse (be it on HUB-level or OS-level), especially when they are connected through different interfaces. Having 2 1kHz USB devices on a single HUB could naturally lead to polls being missed/delayed and cause latency, which in turns makes things "swampy" on the mouse side. But is there proof of that happening? People have reported experiencing mouse lag with perfomance-heavy or bandwidth-heavy devices connected to the PC, such as game pads or smart phones. But PS/2?
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post #6 of 48 (permalink) Old 12-22-2014, 07:27 PM
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So at first I'm like.. I love r0ach but I think he's full of ish here... then a few mins later when I was cleaning I found a dell membrane keyboard (L100 rev3) from 2007 so I'm like screw it he's been right before - I'll try it.

With the SS 6Gv2 it feels like the cursor is lagging behind my path and struggling to catch up. The mouse feels faster? but more consistent with the goddamn $9 membrane keyboard. This is so messed up. I've been using the 6Gv2 for years! #$%^&*(\

At first I thought I was tripping so here I am 30 mins later still able to tell a difference rebooting back and forth between keyboards. This is stupid



So who makes a non lag inducing mechanical keyboard then?

I'm giving the 6Gv2 to my mother or something. I can't even take it to work as I use the left Windows key very often and it doesn't have one lol.

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post #7 of 48 (permalink) Old 12-22-2014, 07:59 PM
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Quote:
Originally Posted by Scorpion667 View Post

So at first I'm like.. I love r0ach but I think he's full of ish here... then a few mins later when I was cleaning I found a dell membrane keyboard (L100 rev3) from 2007 so I'm like screw it he's been right before - I'll try it.

With the SS 6Gv2 it feels like the cursor is lagging behind my path and struggling to catch up. The mouse feels faster? but more consistent with the goddamn $9 membrane keyboard. This is so messed up. I've been using the 6Gv2 for years! #$%^&*(\

At first I thought I was tripping so here I am 30 mins later still able to tell a difference rebooting back and forth between keyboards. This is stupid



So who makes a non lag inducing mechanical keyboard then?

I'm giving the 6Gv2 to my mother or something. I can't even take it to work as I use the left Windows key very often and it doesn't have one lol.

Don't believe you for a second.

How much did r0ach pay you to post this?
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post #8 of 48 (permalink) Old 12-22-2014, 08:05 PM
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Don't believe you for a second.

How much did r0ach pay you to post this?

k

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post #9 of 48 (permalink) Old 12-22-2014, 09:17 PM
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Don't believe you for a second.

How much did r0ach pay you to post this?

Please don't be a trolling jerk.
That's clearly HIS keyboard and monitor (Benq T or Z series). If you don't approve of what he or r0ach says, put them on ignore, like I am going to do to you right now.

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post #10 of 48 (permalink) Old 12-23-2014, 01:26 AM
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For me it seems like the mice movement is alot smoother and "on-point" with the Ducky Shine 4 keyboard.
It used to be a little choppy when I was locking my crosshair to the edge of corners on CSGO to clear out places.
Now its completly smooth!

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