https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236984
Bug ID: 236984
Summary: hdac0: Command timeout on address 0
Product: Base System
Version: 12.0-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: jrom...@auroranetworks.net
Hi:
This could be a duplicate of 229190 but the Intel audio controller in my case
is a different one,
HP ProBook 430 G2:
=====================
# uname -a
FreeBSD juan-laptop 12.0-RELEASE FreeBSD 12.0-RELEASE r341666 GENERIC amd64
=====================
# pciconf -lv
hdac0@pci0:0:3:0: class=0x040300 card=0x2246103c chip=0x0a0c8086 rev=0x0b
hdr=0x00
vendor = 'Intel Corporation'
device = 'Haswell-ULT HD Audio Controller'
class = multimedia
subclass = HDA
========================
# dmesg -a
hdac0: Unexpected unsolicited response from address 0: 00000000
hdac0: Unexpected unsolicited response from address 0: 00000000
hdac0: Unexpected unsolicited response from address 0: 00000000
hdac0: Unexpected unsolicited response from address 0: 00000000
.........................
Starting background file system checks in 60 seconds.
Wed Apr 3 20:39:14 AEDT 2019
Unclaimed write to register 0x4400c
Apr 3 20:39:45 juan-laptop kernel: Unclaimed write to register 0x4400c
hdac0: Command timeout on address 0
hdac0: Command timeout on address 0
hdac0: Command timeout on address 0
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