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geekhack Community => Keyboards => Topic started by: RoflCopter4 on Sat, 24 January 2015, 02:52:01
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I'm not totally sure what causes this, but for whatever reason on a few Alps keyboards I've tried now, whenever I hold down multiple keys for a second or so and let go, one or several of them get "stuck down", or, rather, the command that the key has been released is not sent. I don't know if this is because these keyboards have something terrible like 2-key rollover (why would it let me press 5 keys down and then just not send the release command?) or if it is the PS/2 to USB adapter I'm using (the Blue Cube), or if it's the particular keyboard, or if I'm just a moron (generally always a possibility, I mean just look at all the parenthetical and comma splices so far), but this is a serious problem if I'm, say, trying to play a game.
Anyone?
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The boards don't have 6KRO or NKRO and you've hit their limit. Most likely the boards have 2KRO.
Same thing happened on my Minitouch and I couldn't really game with it.
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Hmm. I just swapped my (relatively expensive) blue cube converter with my (one dollar) cheap Chinese y-cable piece of crap converter and now the problem has gone away completely. I literally don't even. It would make sense if the thing was 2-key rollover or something similar, but why would the converter be to blame?
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What crappy chinese converter are you speaking of? I just recieved my blue cube today and I was planning to use my Focus FK-2001 with white alps as my daily driver.
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I'm not totally sure what causes this, but for whatever reason on a few Alps keyboards I've tried now, whenever I hold down multiple keys for a second or so and let go, one or several of them get "stuck down", or, rather, the command that the key has been released is not sent. I don't know if this is because these keyboards have something terrible like 2-key rollover (why would it let me press 5 keys down and then just not send the release command?) or if it is the PS/2 to USB adapter I'm using (the Blue Cube), or if it's the particular keyboard, or if I'm just a moron (generally always a possibility, I mean just look at all the parenthetical and comma splices so far), but this is a serious problem if I'm, say, trying to play a game.
Anyone?
Which boards were you using; does this happen with all of your Alps boards? There's a very very slim few Alps boards that have NKRO (Leading Edge, Zenith, and Northgate boards come to mind, as well as the Chicony 5161A). Most do indeed have 2KRO with blocking or diode free matrices without blocking, which isn't as bad as a blocked matrix, imo. Most of the time, anyway.
I do sometimes have issues where it's as if sticky keys were turned on out of no where when I'm using my USB converters, even with one of Orihalcon's plug and play Soarer's converters, so I don't know what's up with that. This happens on my FAME which has a matrix without diodes or blocking and the Leading Edge DC-3014 which has NKRO. This doesn't ever happen on my Dell AT101 or Monterey K101.
It's a little wonky, but easy to fix by just pressing down both shift keys again.
Don't know if this is similar to your situation or not! I don't have issues with standard keys being held down, myself; it's just sticky key like effects, even though I have sticky keys turned off in the OS.
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I've never had this with any of my boards Oo . I do have a bizarre case where the keyboard appears to have been engineered wrong and certain keys send release scan codes for the wrong keys but nothing like this oO .