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Re: N-key rollover keyboards (was: issue with keyboard input for multipl
From: |
Dmitry Alexandrov |
Subject: |
Re: N-key rollover keyboards (was: issue with keyboard input for multiple keys Ctrl-b / nkey rollover?) |
Date: |
Sun, 02 Aug 2020 20:04:48 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Yuri Khan <yuri.v.khan@gmail.com> wrote:
> On Sun, 2 Aug 2020 at 18:00, Alan Davis <alan3davis@gmail.com> wrote:
>> I hoped the Nkey rollover would mean key chords like Ctrl-b would work.
> N-key rollover does not matter at all. Modifier keys (Ctrl, Alt, Shift
> and whatever OS-specific fourth key you use) are always reported
> independently in the USB HID keyboard protocol.
FWIW, N-key rollover is not really about USB or protocols; itʼs about circuit
of the keyboard.
It does matter, when you reconfigure modifiers in a human-friendly way, that is
move one of the ‘controls’ (normally, the left one) closer to ‘space’ — under
your thumb — (ctrl:swap_lalt_lctl setxkbmap(1) -option or equivalent).
Then, on many ordinary keyboards few combinations, that are in use in Emacs,
are indeed get ‘ghosted’. And M-C-b with inner M- and C- is a very likely
variant.
Two-key chords can never be affected, of course.
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- issue with keyboard input for multiple keys Ctrl-b / nkey rollover?, Alan Davis, 2020/08/02
- Re: issue with keyboard input for multiple keys Ctrl-b / nkey rollover?, 2QdxY4RzWzUUiLuE, 2020/08/02
- Re: issue with keyboard input for multiple keys Ctrl-b / nkey rollover?, Yuri Khan, 2020/08/02
- Re: issue with keyboard input for multiple keys Ctrl-b / nkey rollover?, Perry Smith, 2020/08/02
- Re: N-key rollover keyboards (was: issue with keyboard input for multiple keys Ctrl-b / nkey rollover?),
Dmitry Alexandrov <=
- Re: N-key rollover keyboards (was: issue with keyboard input for multiple keys Ctrl-b / nkey rollover?), Alan Davis, 2020/08/02
- Re: N-key rollover keyboards, Dmitry Alexandrov, 2020/08/03
- Re: N-key rollover keyboards, Alan Davis, 2020/08/03
- Re: N-key rollover keyboards, 2QdxY4RzWzUUiLuE, 2020/08/03
- Re: N-key rollover keyboards, Alan Davis, 2020/08/04
- Re: N-key rollover keyboards, Yuri Khan, 2020/08/04
- Re: N-key rollover keyboards, Dmitry Alexandrov, 2020/08/04
- Re: N-key rollover keyboards, Yuri Khan, 2020/08/04
- Re: N-key rollover keyboards, Dmitry Alexandrov, 2020/08/04
- Re: N-key rollover keyboards, 2QdxY4RzWzUUiLuE, 2020/08/04