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Date:      Mon, 4 Sep 2023 19:34:32 +0200
From:      Matthias Apitz <guru@unixarea.de>
To:        Michael Gmelin <grembo@freebsd.org>
Cc:        Alexander Motin <mav@freebsd.org>, freebsd-current@freebsd.org
Subject:   Re: 14.0-CURRENT boots fine but keyboard does not work
Message-ID:  <ZPYVKL74wlue%2BOuu@c720-r368166>
In-Reply-To: <CF031651-C306-4EE2-B353-D669A0F59590@freebsd.org>
References:  <ZPYSevkp4iPX/39o@c720-r368166> <CF031651-C306-4EE2-B353-D669A0F59590@freebsd.org>

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El día lunes, septiembre 04, 2023 a las 07:29:41p. m. +0200, Michael Gmelin escribió:

> 
> 
> > On 4. Sep 2023, at 19:23, Matthias Apitz <guru@unixarea.de> wrote:
> > 
> > 
> > Added Alexander Motin <mav@FreeBSD.org> to To: as the origin of the CI;
> > 
> > Neither hw.atkbd.hz=1 nor hw.atkbd.hz=10 makes the keyboard working on
> > my beloved Acer C720. Should I file a new PR?
> > 
> 
> Filing a PR makes sense, could you please Cc me on it?
> 
> Do you know which version of FreeBSD was the last that worked for you?

I'm actually using (and typing this on it) r368166. Will file a PR
tomorrow. Thanks

	matthias

> >> El día lunes, septiembre 04, 2023 a las 06:55:52p. m. +0200, Michael Gmelin escribió:
> >> 
> >> 
> >> 
> >> On Mon, 4 Sep 2023 18:43:11 +0200
> >> Matthias Apitz <guru@unixarea.de> wrote:
> >> 
> >>> I have a 14.0-CURRENT compiled from sources of head from August 4,
> >>> which boots fine from a produced USB key, but the keyboard does not
> >>> work on an Acer C720 (amd64), on other laptops the keyboard is fine.
> >>> 
> >>> The keyboard works during the boot menu (for example to enable verbose
> >>> boot messages) but not on the login: prompt of the booted system.
> >>> 
> >>> I've enabled SSH access into the C720 (if someone need more
> >>> information) and I'm attaching /var/log/messages of the booted system.
> >> 
> >> Hi Matthias,
> >> 
> >> The C720 required special patches for the keyboard to work, which I
> >> originally added here:
> >> https://cgit.freebsd.org/src/commit/?id=6c176113bbdd598231ec47d161d4c3714997169b
> >> 
> >> I assume that something in that area changed recently.
> >> 
> >> Without digging into it, this looks like a possible cause:
> >> 
> >>  https://cgit.freebsd.org/src/commit/sys/dev/atkbdc/atkbd.c?id=ce881170088c4c98c036fe561f8ee8413c2e2585
> >> 
> >>  atkbd: Disable periodic polling by default.
> >>  It is one of the few remaining Giant-locked callouts.  It would be
> >>  good to remove it, not mentioning that polling itself is not good.
> >> 
> >>  If this cause keyboard/mouse freezes on some hardware, please set
> >>  loader tunable hw.atkbd.hz=1 as workaround and report the issue.
> >> 
> >> So you could try to set hw.atkbd.hz=1 (or hw.atkbd.hz=10) in
> >> /boot/loader.conf, then reboot and see if it helps.
> >> 
> >> Best
> >> Michael
> >> 
> >> -- 
> >> Michael Gmelin
> >> 
> > 
> > -- 
> > Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045
> > Public GnuPG key: http://www.unixarea.de/key.pub
> 
> 

-- 
Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub



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