Re: ALC883 recording troubles...
From: Vegard Nossum
Date: Tue Jun 10 2008 - 08:53:41 EST
On Tue, Jun 10, 2008 at 2:22 PM, Romano Giannetti <romanol@xxxxxxxxxxxxx> wrote:
>
> On Mon, 2008-06-09 at 20:59 +0100, Daniel J Blueman wrote:
>>
>> I'm experiencing DC offset with the microphone on 2.6.24 (Ubuntu 8.04
>> LTS x86-64). I can see on Audacity that the DC offset that varies with
>> the recording capture level.
>
> Probably the same as
> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3824
>
> I thought I was the only one seeing that, given the answers I got...
>
>> What's the routine to debug this? Would it help to install windows,
>> dump the register space and compare?
>
> I am available to help, too. My card works quite well, modulo the mic
> problem and a lower output than in Vista, and I'd love to see it solved.
FWIW, I'm seeing this problem as well (ALC268 too) on my Acer Aspire
5720Z laptop.
Dupes of this bug report are NOT hard to find:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3609
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3637
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3897 (reported by me)
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3930
...probably more
Please, if there's anything I can do to fix this, I will. I can apply
and test patches, no problem.
I'm attaching my own alsa-info.txt in case it helps.
Thanks.
Vegard
--
!!################################
!!ALSA Information Script v 0.4.48
!!################################
!!Script ran on: Tue Jun 10 14:45:23 CEST 2008
!!Linux Distribution
!!------------------
Fedora release 8 (Werewolf) Fedora release 8 (Werewolf) Fedora release
8 (Werewolf) Fedora release 8 (Werewolf)
!!Kernel Information
!!------------------
Kernel release: 2.6.24.5-85.fc8
Operating System: GNU/Linux
Architecture: i686
Processor: i686
SMP Enabled: Yes
!!ALSA Version
!!------------
Driver version: 1.0.16
Library version: 1.0.15
Utilities version: 1.0.15
!!Loaded ALSA modules
!!-------------------
snd_hda_intel
!!Soundcards recognised by ALSA
!!-----------------------------
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0x9b300000 irq 22
!!PCI Soundcards installed in the system
!!--------------------------------------
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio
Controller (rev 03)
!!Advanced information - PCI Vendor/Device/Susbsystem ID's
!!--------------------------------------------------------
00:1b.0 0403: 8086:284b (rev 03)
Subsystem: 1025:011e
!!Modprobe options (Sound related)
!!--------------------------------
snd-card-0: index=0
snd-hda-intel: index=0
!!Loaded sound module options
!!--------------------------
!!Module: snd_hda_intel
enable : Y,Y,Y,Y,Y,Y,Y,Y
enable_msi : 0
id : <NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>
index : 0,-1,-1,-1,-1,-1,-1,-1
model : <NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>
position_fix : 0,0,0,0,0,0,0,0
power_save : 0
power_save_controller : Y
probe_mask : -1,-1,-1,-1,-1,-1,-1,-1
single_cmd : N
!!HDA-Intel Codec information
!!---------------------------
--startcollapse--
Codec: Realtek ALC268
Address: 0
Vendor Id: 0x10ec0268
Subsystem Id: 0x1025011e
Revision Id: 0x100003
No Modem Function Group found
Default PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Default Amp-In caps: N/A
Default Amp-Out caps: N/A
GPIO: io=4, o=0, i=0, unsolicited=1, wake=0
IO[0]: enable=0, dir=0, wake=0, sticky=0, data=0
IO[1]: enable=0, dir=0, wake=0, sticky=0, data=0
IO[2]: enable=0, dir=0, wake=0, sticky=0, data=0
IO[3]: enable=0, dir=0, wake=0, sticky=0, data=0
Node 0x02 [Audio Output] wcaps 0x1d: Stereo Amp-Out
Amp-Out caps: ofs=0x40, nsteps=0x40, stepsize=0x03, mute=0
Amp-Out vals: [0x28 0x28]
Converter: stream=5, channel=0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Node 0x03 [Audio Output] wcaps 0x1d: Stereo Amp-Out
Amp-Out caps: ofs=0x40, nsteps=0x40, stepsize=0x03, mute=0
Amp-Out vals: [0x28 0x28]
Converter: stream=5, channel=0
PCM:
rates [0x560]: 44100 48000 96000 192000
bits [0xe]: 16 20 24
formats [0x1]: PCM
Node 0x04 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x05 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x06 [Audio Output] wcaps 0x211: Stereo Digital
Converter: stream=0, channel=0
Digital:
Digital category: 0x0
PCM:
rates [0x5e0]: 44100 48000 88200 96000 192000
bits [0x1e]: 16 20 24 32
formats [0x1]: PCM
Node 0x07 [Audio Input] wcaps 0x100111: Stereo
Converter: stream=0, channel=0
SDI-Select: 0
PCM:
rates [0x160]: 44100 48000 96000
bits [0x6]: 16 20
formats [0x1]: PCM
Connection: 1
0x24
Node 0x08 [Audio Input] wcaps 0x100111: Stereo
Converter: stream=0, channel=0
SDI-Select: 0
PCM:
rates [0x160]: 44100 48000 96000
bits [0x6]: 16 20
formats [0x1]: PCM
Connection: 1
0x23
Node 0x09 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0a [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0b [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0c [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0d [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x0e [Audio Mixer] wcaps 0x20010a: Mono Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00]
Connection: 1
0x02
Node 0x0f [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00 0x00] [0x80 0x80]
Connection: 2
0x02 0x1d
Node 0x10 [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-In vals: [0x00 0x00] [0x80 0x80] [0x80 0x80]
Connection: 3
0x03 0x1d 0x02
Node 0x11 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x12 [Pin Complex] wcaps 0x400001: Stereo
Pincap 0x0820: IN
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Node 0x13 [Pin Complex] wcaps 0x400001: Stereo
Pincap 0x0820: IN
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Node 0x14 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x081003c: IN OUT HP EAPD Detect
EAPD 0x2: EAPD
Pin Default 0x0221101f: [Jack] HP Out at Ext Front
Conn = 1/8, Color = Black
DefAssociation = 0x1, Sequence = 0xf
Pin-ctls: 0xc0: OUT HP
Unsolicited: tag=04, enabled=1
Connection: 1
0x0f
Node 0x15 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x00 0x00]
Pincap 0x081003c: IN OUT HP EAPD Detect
EAPD 0x2: EAPD
Pin Default 0x99130110: [Fixed] Speaker at Int ATAPI
Conn = ATAPI, Color = Unknown
DefAssociation = 0x1, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Connection: 1
0x10
Node 0x16 [Pin Complex] wcaps 0x40010c: Mono Amp-Out
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80]
Pincap 0x0810: OUT
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Connection: 1
0x0e
Node 0x17 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x18 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Amp-In caps: ofs=0x00, nsteps=0x02, stepsize=0x4f, mute=0
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x083734: IN OUT Detect
Vref caps: HIZ 50 GRD 80 100
Pin Default 0x02a19840: [Jack] Mic at Ext Front
Conn = 1/8, Color = Pink
DefAssociation = 0x4, Sequence = 0x0
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=00, enabled=0
Connection: 1
0x02
Node 0x19 [Pin Complex] wcaps 0x40008b: Stereo Amp-In
Amp-In caps: ofs=0x00, nsteps=0x02, stepsize=0x4f, mute=0
Amp-In vals: [0x00 0x00]
Pincap 0x083724: IN Detect
Vref caps: HIZ 50 GRD 80 100
Pin Default 0x99a30941: [Fixed] Mic at Int ATAPI
Conn = ATAPI, Color = Unknown
DefAssociation = 0x4, Sequence = 0x1
Misc = NO_PRESENCE
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=00, enabled=0
Node 0x1a [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Amp-In caps: ofs=0x00, nsteps=0x02, stepsize=0x4f, mute=0
Amp-In vals: [0x00 0x00]
Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
Amp-Out vals: [0x80 0x80]
Pincap 0x083734: IN OUT Detect
Vref caps: HIZ 50 GRD 80 100
Pin Default 0x0281304e: [Jack] Line In at Ext Front
Conn = 1/8, Color = Blue
DefAssociation = 0x4, Sequence = 0xe
Pin-ctls: 0x24: IN VREF_80
Unsolicited: tag=00, enabled=0
Connection: 1
0x02
Node 0x1b [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x1c [Pin Complex] wcaps 0x400001: Stereo
Pincap 0x0820: IN
Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
Conn = 1/8, Color = Black
DefAssociation = 0xf, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Node 0x1d [Pin Complex] wcaps 0x400000: Mono
Pincap 0x0820: IN
Pin Default 0x4017952d: [N/A] Speaker at Ext N/A
Conn = Analog, Color = Pink
DefAssociation = 0x2, Sequence = 0xd
Misc = NO_PRESENCE
Pin-ctls: 0x20: IN
Node 0x1e [Pin Complex] wcaps 0x400380: Mono Digital
Pincap 0x0810: OUT
Pin Default 0x02451130: [Jack] SPDIF Out at Ext Front
Conn = Optical, Color = Black
DefAssociation = 0x3, Sequence = 0x0
Misc = NO_PRESENCE
Pin-ctls: 0x40: OUT
Unsolicited: tag=00, enabled=0
Connection: 1
0x06
Node 0x1f [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x20 [Vendor Defined Widget] wcaps 0xf00040: Mono
Processing caps: benign=0, ncoeff=10
Node 0x21 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x22 [Vendor Defined Widget] wcaps 0xf00000: Mono
Node 0x23 [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
Amp-Out caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
Amp-Out vals: [0x00 0x00]
Connection: 7
0x18* 0x19 0x1a 0x1c 0x14 0x15 0x12
Node 0x24 [Audio Selector] wcaps 0x30010d: Stereo Amp-Out
Amp-Out caps: ofs=0x0b, nsteps=0x1f, stepsize=0x05, mute=1
Amp-Out vals: [0x00 0x00]
Connection: 7
0x18* 0x19 0x1a 0x1c 0x14 0x15 0x13
Codec: Conexant ID 2c06
Address: 1
Vendor Id: 0x14f12c06
Subsystem Id: 0x1025011e
Revision Id: 0x100000
Modem Function Group: 0x2
--endcollapse--
!!ALSA Device nodes
!!-----------------
crw-rw----+ 1 root root 116, 0 2008-06-10 13:01 /dev/snd/controlC0
crw-rw----+ 1 root root 116, 4 2008-06-10 13:01 /dev/snd/hwC0D0
crw-rw----+ 1 root root 116, 5 2008-06-10 13:01 /dev/snd/hwC0D1
crw-rw----+ 1 root root 116, 24 2008-06-10 13:02 /dev/snd/pcmC0D0c
crw-rw----+ 1 root root 116, 16 2008-06-10 14:23 /dev/snd/pcmC0D0p
crw-rw----+ 1 root root 116, 1 2008-06-10 13:01 /dev/snd/seq
crw-rw----+ 1 root root 116, 33 2008-06-10 13:01 /dev/snd/timer
!!ALSA configuration files
!!------------------------
!!System wide config file (/etc/asound.conf)
#Generated by system-config-soundcard
#If you edit this file, don't run system-config-soundcard,
#all your changes here could be lost.
#SWCONF
#DEV 0
defaults.pcm.card 0
defaults.pcm.device 0
defaults.ctl.card 0
!!Aplay/Arecord output
!!------------
APLAY
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
ARECORD
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
!!Amixer output
!!-------------
!!-------Mixer controls for card 0 [Intel]
Simple mixer control 'Master',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 64
Mono:
Front Left: Playback 40 [62%] [-24.00dB] [on]
Front Right: Playback 40 [62%] [-24.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 250 [98%] [-1.00dB]
Front Right: Playback 250 [98%] [-1.00dB]
Simple mixer control 'Line In Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 2
Front Left: 0 [0%]
Front Right: 0 [0%]
Simple mixer control 'Mic Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 2
Front Left: 0 [0%]
Front Right: 0 [0%]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 31
Front Left: Capture 0 [0%] [-16.50dB] [on]
Front Right: Capture 0 [0%] [-16.50dB] [on]
Simple mixer control 'Beep',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 12
Mono:
Front Left: Playback 0 [0%] [-24.00dB] [off]
Front Right: Playback 0 [0%] [-24.00dB] [off]
Simple mixer control 'Digital',0
Capabilities: cvolume
Capture channels: Front Left - Front Right
Limits: Capture 0 - 120
Front Left: Capture 0 [0%] [-30.00dB]
Front Right: Capture 0 [0%] [-30.00dB]
Simple mixer control 'Input Source',0
Capabilities: cenum
Items: 'Mic' 'Internal Mic' 'Line'
Item0: 'Mic'
Simple mixer control 'Internal Mic Boost',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 2
Front Left: 0 [0%]
Front Right: 0 [0%]
!!Alsactl output
!!-------------
--startcollapse--
state.Intel {
control.1 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 64'
iface MIXER
name 'Master Playback Volume'
value.0 40
value.1 40
}
control.2 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 2
iface MIXER
name 'Master Playback Switch'
value.0 true
value.1 true
}
control.3 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 2'
iface MIXER
name 'Mic Boost'
value.0 0
value.1 0
}
control.4 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 2'
iface MIXER
name 'Internal Mic Boost'
value.0 0
value.1 0
}
control.5 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 2'
iface MIXER
name 'Line In Boost'
value.0 0
value.1 0
}
control.6 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 31'
iface MIXER
name 'Capture Volume'
value.0 0
value.1 0
}
control.7 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 2
iface MIXER
name 'Capture Switch'
value.0 true
value.1 true
}
control.8 {
comment.access 'read write'
comment.type ENUMERATED
comment.count 1
comment.item.0 Mic
comment.item.1 'Internal Mic'
comment.item.2 Line
iface MIXER
name 'Input Source'
value Mic
}
control.9 {
comment.access 'read write'
comment.type INTEGER
comment.count 2
comment.range '0 - 12'
iface MIXER
name 'Beep Playback Volume'
value.0 0
value.1 0
}
control.10 {
comment.access 'read write'
comment.type BOOLEAN
comment.count 2
iface MIXER
name 'Beep Playback Switch'
value.0 false
value.1 false
}
control.11 {
comment.access 'read write user'
comment.type INTEGER
comment.count 2
comment.range '0 - 255'
comment.tlv '0000000100000008ffffec1400000014'
iface MIXER
name 'PCM Playback Volume'
value.0 250
value.1 250
}
control.12 {
comment.access 'read write user'
comment.type INTEGER
comment.count 2
comment.range '0 - 120'
comment.tlv '0000000100000008fffff44800000032'
iface MIXER
name 'Digital Capture Volume'
value.0 0
value.1 0
}
}
--endcollapse--
!!All Loaded Modules
!!------------------
Module
rfkill_input
coretemp
hwmon
fuse
cpufreq_ondemand
acpi_cpufreq
loop
dm_multipath
ipv6
snd_hda_intel
snd_seq_oss
snd_seq_midi_event
snd_seq
snd_seq_device
nvidia
snd_pcm_oss
snd_mixer_oss
arc4
ecb
blkcipher
snd_pcm
sr_mod
cdrom
b43
snd_timer
snd_page_alloc
rfkill
snd_hwdep
mac80211
snd
cfg80211
uvcvideo
compat_ioctl32
input_polldev
firewire_ohci
firewire_core
sdhci
video
button
ac
battery
tg3
output
crc_itu_t
mmc_core
ricoh_mmc
videodev
ata_piix
i2c_i801
soundcore
v4l1_compat
pcspkr
iTCO_wdt
pata_acpi
v4l2_common
iTCO_vendor_support
ssb
joydev
ata_generic
i2c_core
sg
dm_snapshot
dm_zero
dm_mirror
dm_mod
ahci
libata
sd_mod
scsi_mod
ext3
jbd
mbcache
uhci_hcd
ohci_hcd
ehci_hcd
--
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