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Author Topic: N-key rollover test.  (Read 108102 times)

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Offline itlnstln

  • Posts: 13094
N-key rollover test.
« Reply #90 on: Tue, 26 August 2008, 13:20:10 »
Maybe the HHKB Lite series would work.  If you like ergonomic boards, the Northgate Evolution (see my avatar) has a split spacebar, so hitting the edge wouldn't be as stressful.  The iOne Scorpius 'board is relatively cheap and mechanical (blue Cherries), but some have had issues with them, and I am not too sure what the rollover is on them.  Personally, I use(d) a Nostromo n52 for gaming.  It's much better than any keyboard for gaming, IMHO.  I use the d-pad on the thumb for UDLR and that leaves my other four fingers free for the other keys, and you don't have to worry about rollover.
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Offline Demi9OD

  • Posts: 3
N-key rollover test.
« Reply #91 on: Tue, 26 August 2008, 15:21:56 »
I have an n52, but I find the keys far too stiff and it makes moving your hands to type text rather annoying.  I purchased a Keytronics Designer off Newegg, and will update the thread when it arrives.  My roomate has an older Keytronics Lifetime Black PS2 that can press the combinations I need so I thought I would give it a shot.
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Offline Demi9OD

  • Posts: 3
N-key rollover test.
« Reply #92 on: Fri, 29 August 2008, 08:18:39 »
The PS2 Keytronics designer I purchased can perform...
qwers
qwerz
qwerx
qwerc

but cannot perform
qwera
qwerd

So limited 5 key rollover, luckily the key combos I need work...
SHIFT+A+W+SPACE+R/F/V/C
SHIFT+A+D+SPACE+R/F/V/C

I like the key action and feedback quite a bit
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Offline graywolf

  • Posts: 181
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N-key rollover test.
« Reply #93 on: Fri, 29 August 2008, 20:39:20 »
It occurs to me that I do have an n-key rollover keyboard.

Any and all keys, any combination, not only which key is detected, but also how hard I hit it, and how long I hold it down. It connects via USB to my laptop (it does work with this computer but I usually use it with the Thinkpad). Sounds good to. Only problem is that SP3 broke the software I normally use it with.

It is made by Yamaha, and I have the midi-usb adapter for it. Ta-ta-dahm...
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Offline xsphat

  • Posts: 3688
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N-key rollover test.
« Reply #94 on: Mon, 22 September 2008, 22:53:02 »
Topre Realforce 86 connected via USB.

6 keys all day, any combo I try — mixing rows and everything. I got 7 once as well, but it may have been a fluke. I think it's safe to say this baby has full n key rollover, which doesn't surprise me at all.
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Offline Ysaquerai

  • Posts: 19
N-key rollover test.
« Reply #95 on: Tue, 14 October 2008, 22:12:02 »
Can anybody test the N-Key Rollover of the Apple Pro Keyboard? I might get it from my friend if it has a good key rollover.
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Offline Ysaquerai

  • Posts: 19
N-key rollover test.
« Reply #96 on: Fri, 17 October 2008, 22:43:08 »
There are reports that Apple Pro Keyboard can have as much as 12 Multiple key press, is this true? At the moment i don't have this keyboard, could anybody validate the N-Key Rollover for this keyboard?
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Offline lam47

  • Posts: 1567
N-key rollover test.
« Reply #97 on: Tue, 11 November 2008, 18:59:27 »
Thread was on 6,666 posts.
Had to do something :)

Ah balls it was views. I need to sleep.
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Offline cmr

  • Posts: 466
N-key rollover test.
« Reply #98 on: Mon, 12 January 2009, 20:49:24 »
apple extended keyboard ii
interface: griffin imate ADB to USB adapter
operating system: ubuntu 8.10
minimum keys accepted: 4
maximum keys accepted: 6
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Offline zwmalone

  • Posts: 676
N-key rollover test.
« Reply #99 on: Mon, 12 January 2009, 21:11:18 »
Chicony KB7001
interface: AT -> AT-PS/2 Adapter -> Belkin Active USB Adapter
operating system: ubuntu 8.10
minimum keys accepted: 3
maximum keys accepted: 6
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Offline cmr

  • Posts: 466
N-key rollover test.
« Reply #100 on: Wed, 14 January 2009, 21:40:46 »
Quote from: cmr;17944
apple extended keyboard ii
interface: griffin imate ADB to USB adapter
operating system: ubuntu 8.10
minimum keys accepted: 4
maximum keys accepted: 6


result is exactly the same using windows vista.
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Offline yetanothergeek

  • Posts: 7
N-key rollover test.
« Reply #101 on: Mon, 19 January 2009, 11:42:51 »
Keyboard: Kinesis Advantage Contoured USB
Connection: USB
Operating System: Linux 2.6.24
Layout: de_neo v1
N-Key: 6 Keys recognized, qvlcui works, qvlcuia fails
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Offline bhtooefr

  • Posts: 2474
N-key rollover test.
« Reply #102 on: Tue, 20 January 2009, 14:41:20 »
Keyboard: Ione Scorpius M10
Connection: USB
Operating system: Windows XP Tablet PC Edition 2005 SP3
Layout: US English
Minimum rollover: 2 keys (used QWAS to test)
Other combos: WASD fails, SDFJKL succeeds
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Offline xyzzy

  • Posts: 277
N-key rollover test.
« Reply #103 on: Thu, 22 January 2009, 05:12:49 »
Keyboard: Cherry Ergoplus G80-5000HAMDE/03
Connection: PS/2 (via AT to PS/2 adapter)
Operating system: Windows XP Professional SP3
Layout: German
Tested rollover: 26 keys - used 1st row (1 to 0), 2nd (q to i) and 3rd (a to k) to test
Other combos: tried different combinations between 18 and 26 keys and couldn't get it to fail
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Topre Realforce 87U (capacitive) • PFU HHKB Pro (capacitive) • IBM Model M Mini UNI04C6 (buckling spring) • IBM Model M 1391405 (buckling spring) (x4) • Cherry MX 5000 ErgoPlus + MX 5700 keypad (brown Cherry) • Cherry MX 1800 Compact (blue Cherry) • Cherry MX 11900 Touchboard (brown Cherry) • Dell AT102W (black Alps) • Apple Extended Keyboard II (cream Alps) • Acer 6312-TA (black Acer) • Unikey KWD-601 (white Cherry)

Offline MamiyaOtaru

  • Posts: 2
N-key rollover test.
« Reply #104 on: Mon, 26 January 2009, 02:12:02 »
KB: Deck Legend
Interface: PS/2
switches: black cherry linear
Keys accepted: 36

No combo I can try fails.  I don't doubt I could get more than 36 if I could position my hands right.
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Offline colinstu

  • Posts: 15
N-key rollover test.
« Reply #105 on: Mon, 26 January 2009, 07:33:57 »
IBM Model M 1391401 (White logo)
Interface: PS/2
Operating System: XP
Max keys accepted: 8

If I hold down more then 8 keys, it only gets 2.
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Offline bhtooefr

  • Posts: 2474
N-key rollover test.
« Reply #106 on: Mon, 26 January 2009, 08:50:14 »
Maximum keys doesn't matter (except for situations such as greater than 6 keys on USB.) You want minimum.
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Offline Homeless

  • Posts: 11
N-key rollover test.
« Reply #107 on: Fri, 30 January 2009, 04:20:56 »
Quote from: Warm Woolly Sheep;3921
Logitech Classic Keyboard 200
Model: Y-UR83
Interface: USB
N-key-rollover: 6
keys used: qasdew

Bought it for $20 at office max while I wait for my endurapro to arrive.


I don't mean to judge your credibility, but can anyone else verify this?  I am specifically looking for "qweasd" and if this keyboard can do it for $20 then I'm sold
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Offline pex

  • Posts: 215
N-key rollover test.
« Reply #108 on: Sat, 31 January 2009, 01:41:28 »
Quote from: Homeless;20226
I don't mean to judge your credibility, but can anyone else verify this?  I am specifically looking for "qweasd" and if this keyboard can do it for $20 then I'm sold


Verifying qweasd is not going to help you know if the keyboard has n-key rollover.

We know it's a USB keyboard so someone needs to USB-to-PS/2 convert to see if the keyboard has native PS/2 support, for the appropriate testing of rollover, but even without we should still be able to effect a proper test of rollover.  One key combination is not a proper test.

What if I told you my keyboard did "jkl,mn" (over PS/2), would you want verification of just this to know rollover?  Let me then tell you this POS won't do "qsdb" or "erjk", or, what makes me even more mad because I use the numpad for FPS, "423".

The reason I like PS/2 as a native interface for a keyboard is that if you've got n-key rollover, you can really just put your fist down in the middle of the keyboard and get 12 characters with no gimmicks attached (although it's best to try both fists...one on the main keyboard area and one on the numpad, since I've sometimes read about some cherry keyboards being 'alpha n-key rollover' whatever that means).
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Destroying Sanctity: my Model M project. Status: Dead.

Offline Homeless

  • Posts: 11
N-key rollover test.
« Reply #109 on: Sat, 31 January 2009, 03:35:05 »
I'm not as interested in full n key rollover as those 6 specific keys working together.  While it would be nice to have a keyboard with full n key rollover, it's only second priority to me
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Online Viett

  • Posts: 289
N-key rollover test.
« Reply #110 on: Tue, 03 February 2009, 19:00:23 »
ABS M1 Heavy Duty Professional Gaming Mechanical Keyboard
Interface: USB
Operating System: XP / Linux
Minimum keys: 2 (WAS and CAPS+Shift+S fail)
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Offline bhtooefr

  • Posts: 2474
N-key rollover test.
« Reply #111 on: Tue, 03 February 2009, 22:29:37 »
Why would you do caps+shift+s? :confused: Or, WAS, for that matter - that's forward, back, and left at the same time.

Anyway, what about QWA, QWD, QAS, QSD, EWA, EWD, ESA, and ESD? Those don't make it a 2-key rollover board, but if you can do those, it's probably fine for gaming.
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Offline Chloe

  • Posts: 951
N-key rollover test.
« Reply #112 on: Tue, 03 February 2009, 22:40:32 »
I remap Caps Lock to Windows key, and I have an AutoHotkey script to turn wave volume up with Win+Shift+S.
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Offline pex

  • Posts: 215
N-key rollover test.
« Reply #113 on: Wed, 04 February 2009, 07:53:24 »
Quote from: Viett;20743
ABS M1 Heavy Duty Professional Gaming Mechanical Keyboard
Interface: USB
Operating System: XP / Linux
Minimum keys: 2 (WAS and CAPS+Shift+S fail)


You need to contact ABS for warranty service.  That sounds like a mfg issue from early models of the M1.
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⌨Ж®Cherry G80-8113 (someday I hope to have one that reads magstripes, rfid cards, and smartcards), ⌨broken \'98 42H1292 Model M, ⌨some other Model M from a decade before that, ⌨30 more keyboards in a box, ⌨4 more lying here or there
Destroying Sanctity: my Model M project. Status: Dead.

Offline itlnstln

  • Posts: 13094
N-key rollover test.
« Reply #114 on: Wed, 04 February 2009, 07:57:17 »
Quote from: pex;20776
You need to contact ABS for warranty service.  That sounds like a mfg issue from early models of the M1.


Confirmed.  I can do this combination with both of my ABS 'boards.  Looking at the reviews on Newegg, it seems that a small number (2-3) of reviewers had an issue with this 'board.  It seems, though, Costar has resolves this and Newegg/ABS is making sure customers experiencing these issues are getting taken care of.
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Offline sargon

  • Posts: 8
N-key rollover test.
« Reply #115 on: Wed, 04 February 2009, 10:14:33 »
Hi guys.  I'm new here, but I took the liberty of changing the rollover test around.  I added support for keys such as shift, ctrl, alt, enter, etc, and I fixed the problem where it detects key autorepeats as new strokes.  My version is here:

http://random.xem.us/rollover.html

Let me know if there are any bugs in it and I'll be happy to fix them.
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Offline itlnstln

  • Posts: 13094
N-key rollover test.
« Reply #116 on: Wed, 04 February 2009, 10:26:32 »
Testing out a few combinations on my ABS, I noticed something odd.  While it does not fail on many tests, where is does fail, it fails on combinations that would require the use of the same hand during regular typing.  A combination that fails on the ABS is "WEXC."  While I could never think of a reason where I would ever hit this combination of keys at the same time (or evn type them in quick succession), it does fail.  I have no idea how keyboards are designed logic-wise, but it seems that they did "work" to ensure likely combinations would work but other, less likely combinations, might not.
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Offline pex

  • Posts: 215
N-key rollover test.
« Reply #117 on: Wed, 04 February 2009, 12:27:40 »
Quote from: itlnstln;20786
A combination that fails on the ABS is "WEXC."  [...]  I have no idea how keyboards are designed logic-wise, but it seems that they did "work" to ensure likely combinations would work but other, less likely combinations, might not.

ABS marketing says 6 key rollover.  That should absolutely not occur.

I just got 10 keys (not on an ABS M1) on the new rollover test but the fact of the matter is that my keyboard is 3-key rollover.
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Destroying Sanctity: my Model M project. Status: Dead.

Offline itlnstln

  • Posts: 13094
N-key rollover test.
« Reply #118 on: Wed, 04 February 2009, 12:44:14 »
You're right, but I don't realy care as I am not a gamer, and I don't really button mash.  Also, the combinations that it fails on are very odd combos, anyway, so I doubt any gamers would even come across as problem either.  I am interested to know if this occurs on Filco versions of the Costar 'boards as well.  I would think that it would; can anyone here with a Filco (USB-based, of course, not the N-key rollover version) check it out?
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Offline xsphat

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N-key rollover test.
« Reply #119 on: Wed, 04 February 2009, 13:08:51 »
Quote from: itlnstln;20796
You're right, but I don't realy care as I am not a gamer, and I don't really button mash.

Do you even notice it when you're using a full n-key rollover keyboard? This Topre 86 feels like the most accurate keyboard I've ever used, and part of that is because I get less things like "jsut," and "adn," but it also seems like it registers better when I write frantically. So you think that's n-key rollover or am I on crack?

PS: I have had other n-key rollover keyboard in the past (DataLux, HHKB Pro 2, Northgate, maybe three others I forgot) and didn't notice anything.
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