Gavin_Eadie@um.cc.umich.edu (Gavin Eadie) (07/01/90)
In article <ALAND.90Jun30114059@chaos.cs.brandeis.edu> aland@chaos.cs.brandeis.edu (Alan D Danziger) writes: > Well, I've run into about the same problem, duplicated on 2 SE/30's > with extended keyboards... In more than one program, if I'm typing > quickly and type 'o' and another key at more or less the same time, I missed the start of this thread but caught this reply. I too, and two of my colleagues, have been having trouble with keyboard stoppage as we type certain sequences fast. The sequence in particular is "stop" (which is typed a lot into VersaTerm for our mainframe software) and the final "p" sometimes doesn't appear. If you notice, and type "p" again it still doesn't work - you need to type something else to 'unjam' the keyboard. I reported this to Mac Technical Support in April and they suggested VersaTerm might be dicking with the keyboard map, but I doubt it (and so does Synergy - the publishers of VersaTerm). I also have had this happen once in Think C as I was typing "top" (though it's possible VersaTerm was in the Multifinder background at the time - I don't remember). It's easy to type the "op" sequence very fast - the two keys are right next to each other - but I can't get this to happen more than about once a day or two. It's totally real, but elusive. I'd love to find the problem and get a fix ... Gavin Eadie, U of Michigan Information Systems
aland@chaos.cs.brandeis.edu (Alan D Danziger) (07/01/90)
In article <1990Jun26.193915.18901@calgary.uucp> sharp@cpsc.UCalgary.CA writes:
So, here are the two combinations. The idea is to type the
characters as fast as possible, either one after the other, or all
together. For the first combination, typing all three together
produces wierdness about 70% of the time for me.
Combination one
u t space
combination two
o m p
Well, I've run into about the same problem, duplicated on 2 SE/30's
with extended keyboards... In more than one program, if I'm typing
quickly and type 'o' and another key at more or less the same time,
the keyboard freezes up until I wait a second or so. Usually I have to
hit delete, or some key other than the space bar... Very confusing.
Also, sometimes if I type to and hit the space bar, it comes out too
for no apparent reason.
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Alan D. Danziger, AKA | Reality is a function of the delusion factor
753 South St,Waltham MA 02154| If at first you DO succeed, Congratulations
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Alan D. Danziger, AKA | Reality is a function of the delusion factor
753 South St,Waltham MA 02154| If at first you DO succeed, Congratulations
aland@chaos.cs.brandeis.edu | For those about to Rock, we salute you
MB 3130/Brandeis University | Life's a beach & then you drown! Catch the Wave
PO Box 9110 Waltham MA 02254 | (617) 894-6859 (617) 647-3720
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=kari@xanadu.com (Kari Dubbelman) (07/13/90)
Gavin Eadie writes:
I too, and two of my colleagues, have been having trouble with
keyboard stoppage as we type certain sequences fast. The sequence in
particular is "stop" (which is typed a lot into VersaTerm for our
mainframe software) and the final "p" sometimes doesn't appear. If you
notice, and type "p" again it still doesn't work - you need to type
something else to 'unjam' the keyboard.
I have observed very similar problems with at least two different
kinds of terminals. In my case, the terminal would choke if I typed
the word "printf" too quickly. This is a bummer if you are a C
programmer.
These were dumb terminals, not computers. They don't contain much. My
suspicion is that the keyboard scanning chip is scanning the keyboard
matrix too slowly. This scanning frequency probably is a tradeoff
between getting the problem we are discussing and getting key bounces.
The layout of the keyboard will determine which combinations are
poisonous.
If you are adventurous, there might be ways to speed the scanning rate
up by a hardware mod, at least for dumb terminals. Maybe not for Mac's.
--
Kari Dubbelman, TeraCons, PO Box 160668, Cupertino, CA 95016-0668
(408) 374-8863 until 1-Jun-1990, after that use (408) 266-8241
Kari@Xanadu.com uunet!xanadu!kari CIS:75130,24 AppleLink/GEnie/MCI/PAN:TeraCons
*** The first human to get to be a million years old has already been born ***danno@eleazar.dartmouth.edu (Danno) (07/27/90)
Gavin Eadie writes: > I too, and two of my colleagues, have been having trouble with > keyboard stoppage as we type certain sequences fast. The sequence in > particular is "stop" (which is typed a lot into VersaTerm for our > mainframe software) and the final "p" sometimes doesn't appear. If you > notice, and type "p" again it still doesn't work - you need to type > something else to 'unjam' the keyboard. This happens to a lot of people here, too. The problem seems to be typing "to" (not "sto") on ADB keyboards. It only happens to me on our locally developed terminal emulator and email program, so at first I thought it was the programs; when I talked to one of the developers of the programs, he said it happens to him in other text-entry situations, as well. (Personally, I've never had in happen in a word processor or anything else.) In my case, the problem is that I cannot type a space after the word "to" sometimes; I have to type one letter (which does not appear), then everything is normal. So, if I typed "stop" and the problem came up, I would not get the "p", but the space after would be fine. If I tried to type (why is this the first "sto*" word in my head? =) "stoli", I would get "stoi". Again, this only comes up occasionally-- about once every few hours of typing. I've asked the net for a response to this question before, and never got any. Please post anything you can find out. Ciao, Danno -- || Daniel McKinnon ||Ho! Ha ha! Guard! Turn! Parry! Dodge! Spin! Ha! Thrust!|| ||=-=-=-=-=-=-=-=-=-=||=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=|| ||danno@dartmouth.edu|| Some days, you just can't get rid of a bomb. || -- || Daniel McKinnon ||Ho! Ha ha! Guard! Turn! Parry! Dodge! Spin! Ha! Thrust!|| ||=-=-=-=-=-=-=-=-=-=||=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=|| ||danno@dartmouth.edu|| Some days, you just can't get rid of a bomb. ||