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keyboard!hardware incompatibilities
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incompatibility!keyboard-related
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Several people have noticed that they lose typed characters when
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a floppy disk is active. It seems that this might be a problem with
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Uni-486WB motherboards.
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Tjalling Tjalkens (tjalling@ei.ele.tue.nl) reports very similar problems
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with "a no-brand GMB-486 UNP Vesa motherboard with AMD 486DX2-66 CPU" -
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during floppy activity some keystrokes are lost, during floppy tape streamer
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(Conner C 250 MQ) activity many keystrokes are lost.
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Some people experience sporadic lockups - sometimes associated to
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hard disk activity or other I/O.
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Ulf Tietz (ulf@rio70.bln.sni.de) wrote:
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`I have had the same problems, when I had my motherboard tuned too fast.
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So I reset all the timings ( CLK, wait statements etc ) to more
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conventional values, and the problems are gone.'
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Bill Hogan (bhogan@crl.com) wrote:
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`If you have an AMI BIOS, you might try setting the Gate A20 emulation
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parameter to "chipset" (if you have that option). Whenever I have had
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that parameter set to any of the other options on my machine
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("fast", "both", "disabled") I have had frequent keyboard lockups.'
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There may be a relation between keyboard problems and the video card in use.
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Shawn K. Quinn (skquinn@wt.net) wrote:
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`I have a Zeos Pantera Pentium-90 that originally came with a Diamond Stealth
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64 S3-based video card. Under X I frequently got q's inserted into my text
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(how annoying) especially if I typed very fast (during Netrek for instance,
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even more annoying because guess what that does :-( ).
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Switching to a Creative Labs Graphics Blaster MA202 solved the problem.
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I'm assuming the Stealth 64 did something funny with the timings.'
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