Re: Mouse clicks "delayed" until movement

From	Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups	linux.debian.user
Subject	Re: Mouse clicks "delayed" until movement
Date	2026-05-14 21:10 +0200
Message-ID	<MUJBv-58RK-29@gated-at.bofh.it> (permalink)
References	(4 earlier) <MToz7-4f4h-1@gated-at.bofh.it> <MTsjn-4hHy-1@gated-at.bofh.it> <MTDy9-4pnq-3@gated-at.bofh.it> <MTLvH-4utm-1@gated-at.bofh.it> <MU1h7-4EYt-9@gated-at.bofh.it>
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Franco Martelli [2026-05-12 21:42:04] wrote:
> checking the documentation into the Linux kernel sources (version 6.12.85)
> for the i8042 driver are available the following kernel parameters:
>
>         i8042.debug     [HW] Toggle i8042 debug mode
>         i8042.unmask_kbd_data
>                         [HW] Enable printing of interrupt data from the KBD
>                        port
>                              (disabled by default, and as a pre-condition
>                              requires that i8042.debug=1 be enabled)
>         i8042.direct    [HW] Put keyboard port into non-translated mode
>         i8042.dumbkbd   [HW] Pretend that controller can only read data from
>                              keyboard and cannot control its state
>                              (Don't attempt to blink the leds)
>         i8042.noaux     [HW] Don't check for auxiliary (== mouse) port
>         i8042.nokbd     [HW] Don't check/create keyboard port
>         i8042.noloop    [HW] Disable the AUX Loopback command while probing
>                              for the AUX port
>         i8042.nomux     [HW] Don't check presence of an active multiplexing
>                              controller
>         i8042.nopnp     [HW] Don't use ACPIPnP / PnPBIOS to discover KBD/AUX
>                              controllers
>         i8042.notimeout [HW] Ignore timeout condition signalled by
>         controller
>         i8042.reset     [HW] Reset the controller during init, cleanup and
>                              suspend-to-ram transitions, only during s2r
>                              transitions, or never reset
>                         Format: { 1 | Y | y | 0 | N | n }
>                         1, Y, y: always reset controller
>                         0, N, n: don't ever reset controller
>                         Default: only on s2r transitions on x86; most other
>                         architectures force reset to be always executed
>         i8042.unlock    [HW] Unlock (ignore) the keylock
>         i8042.kbdreset  [HW] Reset device connected to KBD port
>         i8042.probe_defer
>                         [HW] Allow deferred probing upon i8042 probe errors

Only the first two appear in /sys/module/i8042 so I'll have to reboot to
try the other ones.  FWIW, I tried to `echo
Y >/sys/module/i8042/parameters/debug` and the resulting messages in
`dmesg` indicate that the kernel receives the press and release of the
mouse buttons at the right time, so the problems comes from "higher up"
in the software stack.


=== Stefan

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Thread

Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-04-24 17:10 +0200
  Re: Mouse clicks "delayed" until movement The Wanderer <wanderer@fastmail.fm> - 2026-04-24 19:40 +0200
  Re: Mouse clicks "delayed" until movement "Alexander V. Makartsev" <avbetev@gmail.com> - 2026-04-24 20:00 +0200
    Re: Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-04-28 22:00 +0200
      Re: Mouse clicks "delayed" until movement nwe <nwe@gitcoding.net> - 2026-04-28 22:20 +0200
        Re: Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-04-28 22:50 +0200
          Re: Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-04-28 23:20 +0200
            Re: Mouse clicks "delayed" until movement Franco Martelli <martellif67@gmail.com> - 2026-04-29 21:20 +0200
            Re: Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-05-01 00:30 +0200
              Re: Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-05-09 04:40 +0200
                Re: Mouse clicks "delayed" until movement Max Nikulin <manikulin@gmail.com> - 2026-05-10 05:30 +0200
                Re: Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-05-10 17:20 +0200
  Re: Mouse clicks "delayed" until movement nwe <nwe@gitcoding.net> - 2026-05-10 07:10 +0200
    Re: Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-05-10 17:30 +0200
      Re: Mouse clicks "delayed" until movement <tomas@tuxteam.de> - 2026-05-10 18:30 +0200
        Re: Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-05-11 04:30 +0200
          Re: Mouse clicks "delayed" until movement tomas@tuxteam.de - 2026-05-11 08:30 +0200
            Re: Mouse clicks "delayed" until movement Franco Martelli <martellif67@gmail.com> - 2026-05-11 20:30 +0200
              Re: Mouse clicks "delayed" until movement Max Nikulin <manikulin@gmail.com> - 2026-05-12 05:00 +0200
                Re: Mouse clicks "delayed" until movement Franco Martelli <martellif67@gmail.com> - 2026-05-12 21:50 +0200
                Re: Mouse clicks "delayed" until movement Stefan Monnier <monnier@iro.umontreal.ca> - 2026-05-14 21:10 +0200
                Re: Mouse clicks "delayed" until movement <tomas@tuxteam.de> - 2026-05-15 08:30 +0200

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