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Bug 441908 - mixer track is "muted" when volume is lowered and gets stuck
mixer track is "muted" when volume is lowered and gets stuck
Status: RESOLVED FIXED
Product: gnome-settings-daemon
Classification: Core
Component: general
2.22.x
Other All
: Normal normal
: ---
Assigned To: Control-Center Maintainers
Control-Center Maintainers
Depends on:
Blocks:
 
 
Reported: 2007-05-28 21:06 UTC by Tormod Volden
Modified: 2008-07-27 08:15 UTC
See Also:
GNOME target: ---
GNOME version: 2.17/2.18


Description Tormod Volden 2007-05-28 21:06:48 UTC 
Please describe the problem:
Using Default Mixer Track and volume up/down keys to adjust the microphone level of my USB webcam. If I turn down the volume, it displays a "mute" icon on the pop-up indicator and the slider won't move any longer.

In fact, acme_volume_get_mute() returns 1 in do_sound_action(), and
acme_volume_get_volume() returns 6. I tried changing the vol_step in gconf, but the level is stuck at 0 until I raise it with for instance alsamixer.

The Microphone level has only the 0,33,67,100 steps.

$ amixer -c 1
Simple mixer control 'Mic',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Mono
  Limits: Capture 0 - 3
  Mono: Capture 0 [0%] [26.00dB] [on]

$ lsusb
Bus 001 Device 004: ID 0471:030c Philips PCVC690K WebCam [pwc]

$ cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xc8000000 irq 16
 1 [U0x4710x30c    ]: USB-Audio - USB Device 0x471:0x30c
                      USB Device 0x471:0x30c at usb-0000:00:1d.0-2, full speed


Steps to reproduce:
1. 
2. 
3. 


Actual results:


Expected results:


Does this happen every time?


Other information:
Comment 1 Tormod Volden 2007-05-28 21:20:29 UTC 
Commented by Jan Arne Petersen in bug #441552:
"seems to be raised by GstAlsaMixer mapping pswitch to mute and
cswitch to record."
Comment 2 Jens Granseuer 2008-07-27 08:15:34 UTC 
This should actually be fixed in current 2.23.x. Please reopen if it isn't.