NetBSD Problem Report #60212

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Date: Sun, 26 Apr 2026 13:53:57 +0000 (UTC)
From: gold@1codim.ru
Reply-To: gold@1codim.ru
To: gnats-bugs@NetBSD.org
Subject: After waking up from sleep, the keyboard and touchpad don't work. (fix patch attached)
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X-From4GNATS: "gold@1codim.ru via gnats" <gnats-admin@NetBSD.org>

>Number:         60212
>Category:       kern
>Synopsis:       After waking up from sleep, the keyboard and touchpad don't work. (fix patch attached)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Apr 26 13:55:00 +0000 2026
>Last-Modified:  Sun Apr 26 14:30:01 +0000 2026
>Originator:     Dmitriy Golondarev
>Release:        10.1
>Organization:
Home
>Environment:
NetBSD catbsd 10.1 NetBSD 10.1 (GENERIC) #12: Sat Apr 18 20:49:04 MSK 2026
>Description:
pckbc_resume was never called because the PMF handler wasn't registered in pckbc_attach.
>How-To-Repeat:
sysctl -w hw.acpi.sleep.state=3

The keyboard doesn't work after waking up from sleep.
>Fix:
I recompiled the kernel with these changes. This solved the problem.

 sys/dev/ic/pckbc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/dev/ic/pckbc.c b/sys/dev/ic/pckbc.c
--- a/sys/dev/ic/pckbc.c
+++ b/sys/dev/ic/pckbc.c
@@ -376,6 +376,9 @@ pckbc_attach(struct pckbc_softc *sc)
 		t->t_haveaux = 0;
 	}

+	if (!pmf_device_register(sc->sc_dv, NULL, pckbc_resume))
+		aprint_error("pckbc+: register resume hendler error\n");
+
 nomouse:
 	/* enable needed interrupts */
 	t->t_cmdbyte |= cmdbits;

>Audit-Trail:
From: Jared McNeill <jmcneill@invisible.ca>
To: gnats-bugs@netbsd.org
Cc: kern-bug-people@netbsd.org, gnats-admin@netbsd.org, netbsd-bugs@netbsd.org
Subject: Re: kern/60212: After waking up from sleep, the keyboard and touchpad
 don't work. (fix patch attached)
Date: Sun, 26 Apr 2026 11:25:42 -0300 (ADT)

 > I recompiled the kernel with these changes. This solved the problem.
 >
 > sys/dev/ic/pckbc.c | 3 +++
 > 1 file changed, 3 insertions(+)
 >
 > diff --git a/sys/dev/ic/pckbc.c b/sys/dev/ic/pckbc.c
 > --- a/sys/dev/ic/pckbc.c
 > +++ b/sys/dev/ic/pckbc.c
 > @@ -376,6 +376,9 @@ pckbc_attach(struct pckbc_softc *sc)
 > 		t->t_haveaux = 0;
 > 	}
 >
 > +	if (!pmf_device_register(sc->sc_dv, NULL, pckbc_resume))
 > +		aprint_error("pckbc+: register resume hendler error\n");
 > +
 > nomouse:
 > 	/* enable needed interrupts */
 > 	t->t_cmdbyte |= cmdbits;

 We have code in pckbc_acpi and pckbc_isa that does this already, I'd like 
 to find out why that didn't work. Can you provide a full dmesg and if 
 possible, trace the relevant attach glue (pckbc_isa.c or pckbc_acpi.c) to 
 see why the pmf_device_register calls there weren't reached?

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