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DIP/入力認証済み未処理2026-08-27 20:042026-08-30 15:23
 
テスターMarcher担当者 ソースapple/mac128.cpp
バージョン0.288発生バージョン修正バージョン
修正コミットプルリク
フラグ
セット mac128k, mac512k
セット詳細
mac128k - Macintosh 128k
mac512k - Macintosh 512k
 
概 要キーを押して無いのに謎キーがオートリピートすることがある。
詳 細On mac128k and mac512k, at an unpredictable moment with no key held down
by the user, the emulated keyboard spontaneously begins auto-repeating a
character (or a short, fixed cycle of several characters) as if a key
were stuck down. This is not triggered by any user input - it has been
observed to start while the machine is sitting idle (e.g. with the Key
Caps desk accessory open, or a terminal window in the foreground, no
typing in progress).

The glitch stops as soon as any other key is pressed, but can recur
later at another random interval (observed gaps between occurrences
range from under a minute to many minutes; it does not reproduce on
every session, and can fail to reproduce for many minutes of idle
waiting even on an affected machine/software combination).

macplus was tested under the same conditions and did not reproduce the
issue.
再現手順1. Start mac128k or mac512k with any bootable System floppy.
2. Bring up a state where the keyboard is idle and no typing is in
   progress - e.g. open the Key Caps desk accessory, or simply leave a
   terminal application (MacTerminal 1.1 in my testing) in the
   foreground.
3. Do not touch the keyboard. Wait - anywhere from under a minute to
   several minutes.
4. Observe: a character (or short fixed sequence of characters) may
   begin appearing/repeating on its own, at the machine's configured
   key-repeat rate, with no key held.
5. Press any other key to stop the repeat. The glitch may recur later
   at another random interval.

This is intermittent; multiple attempts and idle-wait periods may be
needed to reproduce, and it will not reproduce every time even on an
affected configuration.
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