Re: 14.0-CURRENT boots fine but keyboard does not work

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?

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
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