[alsa-devel] REGRESSION: Webcam mic for 145f:015b not longer working with 1.0.24 and above (OK with 1.0.23)

Tue Aug 28 11:47:36 CEST 2012

On 28/08/2012 12:30 μμ, Daniel Mack wrote:
> On 28.08.2012 11:18, Kostas wrote:
>> On 28/08/2012 12:06 Î¼Î¼, Daniel Mack wrote:
>>> On 28.08.2012 10:56, Kostas wrote:
>>>> On 28/08/2012 11:50 Ï€Î¼, Daniel Mack wrote:
>>>>> On 28.08.2012 10:47, Kostas wrote:
>>>>>> On 28/08/2012 08:44 ÃÂ€ÃŽÂ¼, Daniel Mack wrote:
>>>>>>> On 28.08.2012 00:19, Kostas wrote:
>>>>>>>> On 27/08/2012 06:54 ÃŽÂ¼ÃŽÂ¼, Kostas wrote:
>>>>>>>>> On 27/08/2012 02:44 ÃŽÂ¼ÃŽÂ¼, Daniel Mack wrote:
>>>>>>>>>> On 27.08.2012 12:33, Kostas wrote:
>>>>>>>>>>> On 27/08/2012 12:26 ÃŽÂ¼ÃŽÂ¼, Daniel Mack wrote:
>>>>>>>>>>>> On 27.08.2012 11:00, Kostas wrote:
>>>>>>>>>>>>> Hi All,
>>>>>>>>>>>>>
>>>>>>>>>>>>> I have a 'Trust Webcam' (USB ID: 145f:015b) that comes with a
>>>>>>>>>>>>> microphone.
>>>>>>>>>>>>> The microphone works with Alsa 1.0.23 but it does not work with the
>>>>>>>>>>>>> latest Alsa 1.0.25 neither with Alsa 1.0.24.
>>>>>>>>>>>>> Apparently this is a regression.
>>>>>>>>>>>>>
>>>>>>>>>>>>> What shall I do to figure out the source of the problem?
>>>>>>>>>>>>>
>>>>>>>>>>>>> Here are attached my alsa-infos, with Alsa 1.0.23 (working),
>>>>>>>>>>>>> 1.0.24 (NOT
>>>>>>>>>>>>> working) and 1.0.25 (NOT working).
>>>>>>>>>>>> Can you provide dmesg protocols for both a working and a non-working
>>>>>>>>>>>> case please?
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>> Below are attached the dmesg files.
>>>>>>>>>>>
>>>>>>>>>> Thanks - the logs look both good, I guess the interesting messages are
>>>>>>>>>> only generated once you try to start the stream. Can you try this?
>>>>>>>>> How i do that?
>>>>>>>>> I tried to make a test call in skype and also recording a video in
>>>>>>>>> cheese but no changes in dmesg.
>>>>>>>>> Is there another way to start the stream?
>>>>>>>> Also tried to record voice with sound recorder...with alsa 1.0.23
>>>>>>>> recording is fine..i hear my voice when playback the file but with alsa
>>>>>>>> 1.0.24 and above nothing is recorded.
>>>>>>>> In both cases nothing is changed in dmesg output.
>>>>>>>> What else could i do to help you out?
>>>>>>>>
>>>>>>> Comparing the two dmesg logs, I'm under the impression that in the
>>>>>>> second case (the newer kernel), the hda driver kicks in and creates a
>>>>>>> sound device before the usb audio driver does. Hence, the default card
>>>>>>> changes and you're recording from your internal sound card rather than
>>>>>>> the Webcam.
>>>>>>>
>>>>>>> Could you please send the output of 'aplay -l' in both cases?
>>>>>>>
>>>>>>>
>>>>>>> Daniel
>>>>>>>
>>>>>> Output of working case
>>>>>> **** List of PLAYBACK Hardware Devices ****
>>>>>> card 0: SB [HDA ATI SB], device 0: AD198x Analog [AD198x Analog]
>>>>>> Ã‚  Subdevices: 1/1
>>>>>> Ã‚  Subdevice #0: subdevice #0
>>>>>> card 0: SB [HDA ATI SB], device 1: AD198x Digital [AD198x Digital]
>>>>>> Ã‚  Subdevices: 1/1
>>>>>> Ã‚  Subdevice #0: subdevice #0
>>>>>> card 2: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
>>>>>> Ã‚  Subdevices: 1/1
>>>>>> Ã‚  Subdevice #0: subdevice #0
>>>>> Sorry, there's of course no playback on a webcam. Try 'arecord -l'
>>>>> instead, please.
>>>>>
>>>>>
>>>>> Daniel
>>>>>
>>>> Output of non-working case
>>>> **** List of CAPTURE Hardware Devices ****
>>>> card 0: SB [HDA ATI SB], device 0: AD198x Analog [AD198x Analog]
>>>>      Subdevices: 3/3
>>>>      Subdevice #0: subdevice #0
>>>>      Subdevice #1: subdevice #1
>>>>      Subdevice #2: subdevice #2
>>>> card 1: Webcam [Trust 2MP Auto Focus Webcam], device 0: USB Audio [USB
>>>> Audio]
>>>>      Subdevices: 1/1
>>>>      Subdevice #0: subdevice #0
>>>>
>>>>
>>>> Output of working case
>>>> **** List of CAPTURE Hardware Devices ****
>>>> card 0: SB [HDA ATI SB], device 0: AD198x Analog [AD198x Analog]
>>>>      Subdevices: 3/3
>>>>      Subdevice #0: subdevice #0
>>>>      Subdevice #1: subdevice #1
>>>>      Subdevice #2: subdevice #2
>>>> card 1: default [Trust 2MP Auto Focus Webcam ], device 0: USB Audio [USB
>>>> Audio]
>>>>      Subdevices: 1/1
>>>>      Subdevice #0: subdevice #0
>>>>
>>> Try 'arecord -f cd -Dplughw:1 foo.wav' and see if that works. For
>>> whatever reason, the webcam is not the default in the non-working case.
>>> Are you using the same userspace and configs in both cases?
>>>
>>>
>>> Daniel
>>>
>> Unfortunately it doesn't work...voice is recorded only in 1.0.23 alsa
>> version.
>> In above version nothing is recorded.
>> I use the same Ubuntu release just the kernel changes
>> 1.0.23 alsa is in kernel 2.6.38
>> newer alsa versions that don't work are in newer kernels.
> I still think it is all related to configs and settings. Can you please
> go check all relevant volume settings and routing switches with amixer
> or alsamixer? The fact that the default changes tells me that
> something's different in the behaviour in which ALSA handles the devices.
>
> Also note that 1.0.24 is rather ancient already, and while the driver
> has seen quiet some refactoring lately, I haven't heard about
> regressions in that version yet - and I'm sure we would have gotten a
> whole lot of reports if there was such a tremendous breakage. And
> there's no signs of errors in the kernel logs either. But you never
> know, of course.
>
>
> Daniel
>
Alsamixer working case http://imagebin.org/226143
Alsamixer non-working case http://imagebin.org/226142

I also attach amixer output for both cases.
-------------- next part --------------
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 39
  Mono: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Front',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 39
  Mono:
  Front Left: Playback 39 [100%] [0.00dB] [on]
  Front Right: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 39
  Mono:
  Front Left: Playback 39 [100%] [0.00dB] [on]
  Front Right: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 39
  Mono: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 39
  Mono: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'Side',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 39
  Mono:
  Front Left: Playback 39 [100%] [0.00dB] [on]
  Front Right: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [on]
  Front Right: Playback 0 [0%] [-34.50dB] [on]
Simple mixer control 'Line',1
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [on]
  Front Right: Playback 0 [0%] [-34.50dB] [on]
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]
Simple mixer control 'Mic Boost',0
  Capabilities: volume penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 39
  Mono:
  Front Left: Playback 39 [100%] [0.00dB] [on]
  Front Right: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'IEC958 Default PCM',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958 Playback Source',0
  Capabilities: enum
  Items: 'PCM' 'ADC1' 'ADC2' 'ADC3'
  Item0: 'PCM'
Simple mixer control 'Beep',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 15
  Mono: Playback 15 [100%] [0.00dB] [off]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 54
  Front Left: Capture 31 [57%] [-12.00dB] [on]
  Front Right: Capture 31 [57%] [-12.00dB] [on]
Simple mixer control 'Capture',1
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 54
  Front Left: Capture 54 [100%] [22.50dB] [off]
  Front Right: Capture 54 [100%] [22.50dB] [off]
Simple mixer control 'Capture',2
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 54
  Front Left: Capture 54 [100%] [22.50dB] [off]
  Front Right: Capture 54 [100%] [22.50dB] [off]
Simple mixer control 'Analog Mix',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [0.00dB] [on]
  Front Right: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'Digital',0
  Capabilities: cvolume penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 120
  Front Left: Capture 60 [50%] [0.00dB]
  Front Right: Capture 60 [50%] [0.00dB]
Simple mixer control 'Input Source',0
  Capabilities: cenum
  Items: 'Mic' 'Line' 'Line 1' 'CD' 'Mix'
  Item0: 'Mic'
Simple mixer control 'Input Source',1
  Capabilities: cenum
  Items: 'Mic' 'Line' 'Line 1' 'CD' 'Mix'
  Item0: 'Mic'
Simple mixer control 'Input Source',2
  Capabilities: cenum
  Items: 'Mic' 'Line' 'Line 1' 'CD' 'Mix'
  Item0: 'Mic'
-------------- next part --------------
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 39
  Mono: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Front',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 39
  Mono:
  Front Left: Playback 39 [100%] [0.00dB] [on]
  Front Right: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 39
  Mono:
  Front Left: Playback 39 [100%] [0.00dB] [on]
  Front Right: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 39
  Mono: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 39
  Mono: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'Side',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 39
  Mono:
  Front Left: Playback 39 [100%] [0.00dB] [on]
  Front Right: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [on]
  Front Right: Playback 0 [0%] [-34.50dB] [on]
Simple mixer control 'Line',1
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [on]
  Front Right: Playback 0 [0%] [-34.50dB] [on]
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 0 [0%] [-34.50dB] [off]
  Front Right: Playback 0 [0%] [-34.50dB] [off]
Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]
Simple mixer control 'Mic Boost',0
  Capabilities: volume penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%] [0.00dB]
  Front Right: 0 [0%] [0.00dB]
Simple mixer control 'IEC958',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 39
  Mono:
  Front Left: Playback 39 [100%] [0.00dB] [on]
  Front Right: Playback 39 [100%] [0.00dB] [on]
Simple mixer control 'IEC958 Default PCM',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958 Playback Source',0
  Capabilities: enum
  Items: 'PCM' 'ADC1' 'ADC2' 'ADC3'
  Item0: 'PCM'
Simple mixer control 'Beep',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 15
  Mono: Playback 15 [100%] [0.00dB] [off]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 54
  Front Left: Capture 31 [57%] [-12.00dB] [on]
  Front Right: Capture 31 [57%] [-12.00dB] [on]
Simple mixer control 'Capture',1
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 54
  Front Left: Capture 54 [100%] [22.50dB] [off]
  Front Right: Capture 54 [100%] [22.50dB] [off]
Simple mixer control 'Capture',2
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 54
  Front Left: Capture 54 [100%] [22.50dB] [off]
  Front Right: Capture 54 [100%] [22.50dB] [off]
Simple mixer control 'Analog Mix',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [0.00dB] [on]
  Front Right: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'Digital',0
  Capabilities: cvolume penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 120
  Front Left: Capture 60 [50%] [0.00dB]
  Front Right: Capture 60 [50%] [0.00dB]
Simple mixer control 'Input Source',0
  Capabilities: cenum
  Items: 'Mic' 'Line' 'Line 1' 'CD' 'Mix'
  Item0: 'Mic'
Simple mixer control 'Input Source',1
  Capabilities: cenum
  Items: 'Mic' 'Line' 'Line 1' 'CD' 'Mix'
  Item0: 'Mic'
Simple mixer control 'Input Source',2
  Capabilities: cenum
  Items: 'Mic' 'Line' 'Line 1' 'CD' 'Mix'
  Item0: 'Mic'