Public bug reported:
Bug observed on karmic alpha-2: related to snd_hda_intel module
uname -a:
Linux nigel-laptop 2.6.30-8-generic #9-Ubuntu SMP Wed Jun 3 15:23:55 UTC 2009
i686 GNU/Linux
Laptop is a Toshiba A100-259 with Realtek ALC861 HD Audio on an ATI
chipset (Radeon Xpress 200M)
lspci shows:
00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio
Controller (rev 01
lshw shows:
*-multimedia
description: Audio device
product: IXP SB4x0 High Definition Audio Controller
vendor: ATI Technologies Inc
physical id: 14.2
bus info: p...@0000:00:14.2
version: 01
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=HDA Intel latency=64 module=snd_hda_intel
aplay -l shows:
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: ALC861 Analog [ALC861 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: SB [HDA ATI SB], device 6: Si3054 Modem [Si3054 Modem]
Subdevices: 1/1
Subdevice #0: subdevice #0
dmesg extracts:
At boot time it shows:
[ 11.379095] HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ
16
[ 11.499983] hda_codec: Unknown model for ALC861, trying auto-probe from
BIOS...
[ 11.500116] input: HDA Digital PCBeep as
/devices/pci0000:00/0000:00:14.2/input/input9
...snip...
[ 137.069706] Too big adjustment 32
[ 137.086909] Too big adjustment 32
[ 137.134515] Too big adjustment 32
About half the time this line is also in the dmesg on boot:
hda-intel: IRQ timing workaround is activated for card #0. Suggest a
bigger bdl_pos_adj.
Sound works ok for a while then you get:
hda_intel: azx_get_response timeout, switching to polling mode: last
cmd=0x001f0500
After that all sound just loops/repeats continually. A reboot is
required to bring it back.
ProblemType: Bug
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: nigel 3951 F.... mixer_applet2
Card0.Amixer.info:
Card hw:0 'SB'/'HDA ATI SB at 0xc0000000 irq 16'
Mixer name : 'Realtek ALC861'
Components : 'HDA:11c13026,11790001,00100700
HDA:10ec0861,1179ff10,00100300'
Controls : 14
Simple ctrls : 10
Date: Tue Jun 23 14:00:25 2009
DistroRelease: Ubuntu 9.10
Package: alsa-base 1.0.20+dfsg-1ubuntu4
PackageArchitecture: all
ProcEnviron:
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.30-8.9-generic
SourcePackage: alsa-driver
Uname: Linux 2.6.30-8-generic i686
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
--
[karmic]snd_hda_intel: audio moves to polling mode and starts repeating
(Toshiba A100-259/ATI IXP SB4x0 HD/ALC861)
https://bugs.launchpad.net/bugs/391114
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