Flash causing static when I mute

[jsschreck]

I updated to Intrepid-beta, and I am hoping that in the next few days when the distro is complete, this will go away. I will report it anyways because this has been a problem for a few weeks now, and no fix has been issued.

When I start up the computer (Dell Inspiron 1525) the sound works fine. Mute works. However, once a flash application is opened (last.fm applet for example), when I mute, I hear loud static. I have gone into the Gnome ALSA mixer and tried to mute all microphone features, no fix. I have no idea what to try at this point. Its clear (I think) that this is a flash problem. Also, if I have a flash application opened and I go into hibernation, upon coming out, the sound is then killed. I have to ctrl-alt-backspace and restart X in order to restore the sound. Again, this only happens when I have used flash.

Any help would be greatly appreciated!

[MichielBeijen (michiel-beijen)]

I have similar experiences on the defenite version of Intrepid. I use ALSA with my Dell Vostro 1500 which has an Intel sound card. In my experience this is not limited to flash, I have these issues with Rhythmbox as well, I guess it is related to ALSA.

Whenever I use the soft key of my laptop to mute, when I use the Volume Down soft key until sound is off I will hear static.

When I use the volume control icon in Ubuntu I can click Mute without any problems, but when I open Sound Control and use the PCM fader and fade it to 0% or mute the PCM channel I will also hear static.

I found out when there is no sound playing, I can mute without hearing static. If I then start in a sound, for instance a song in Rhythmbox, I will hear static.

[Alex Ruddick (alexrudd0)]

Confirming. I'm running up-to-date Intrepid + backports on a Dell Latitude D620. Sound Preferences indicated my sound card is "HDA Intel STAC92xx", and I'm using ALSA.
Michiel describes my symptoms.
* Mute from volume applet works fine.
* Mute from laptop keys will produce static while sound is playing, from Flash or Rhythmbox.

[Botond Szász (boteeka)]

I can also confirm this. Also, I think this is more related to the PCM volume being muted and master not. When I mute the PCM channel I can hear this static noise, but if I mute the master channel there is no static noise at all.
My volume keys on the keyboard are set to modify the PCM channel instead of master, because it seems to provide a more natural volume change experience.

[Lestat (daniele-ardemagni)]

Same issue and settings like yours. It happens to me with any applications (banshee, vlc, me-tv, emesene, etc.) only when the PCM channel is on mute (the master channel works fine).

[MichielBeijen (michiel-beijen)]

What make and model of laptop and audio chipset do you have?

On Apr 30, 2009 12:05 AM, "Lestat" <email address hidden> wrote:

Same issue and settings like yours. It happens to me with any
applications (banshee, vlc, me-tv, emesene, etc.) only when the PCM
channel is on mute (the master channel works fine).

-- Flash causing static when I mute
https://bugs.launchpad.net/bugs/288386You received this bug n...

[Lestat (daniele-ardemagni)]

I have a desktop with an Intel HDA Sigmatel STAC9271D chipset (ICH9 Family) integrated into the motherboard.

[Botond Szász (boteeka)]

Notebook, Dell Inspiron 1525:

sudo lshw -C multimedia
  *-multimedia
       description: Audio device
       product: 82801H (ICH8 Family) HD Audio Controller
       vendor: Intel Corporation
       physical id: 1b
       bus info: pci@0000:00:1b.0
       version: 02
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=HDA Intel latency=0 module=snd_hda_intel