1) Would you please try this with user1:
sudo gpasswd -a user1 pulse-access
sudo gpasswd -a user1 pulse-rt
sudo gpasswd -a pulse audio
2) Have you tried this?
"
edit /usr/local/etc/pulse/system.pa and add:
load-module module-native-protocol-unix auth-anonymous=1
Reference: https://tango.0pointer.de/pipermail/pulseaudio-discuss/2009-January/002942.html
3) Try running pulseaudio in system mode
Reference: https://bugzilla.redhat.com/attachment.cgi?id=262541
4) Make sure user2 does not run pulseaudio as root
5) Remove applications from user2 that may not release audio (e.g. timidity)
6) Go through ~/.asoundrc
and /etc/asound.conf
if present
7) Check if "the evil libflashsupport library" is installed. To uninstall:
sudo aptitude purge libflashsupport flashplugin-nonfree-extrasound
8) Start pulseaudio daemon system wide:
gksu gedit /etc/default/pulseaudio
And change "PULSEAUDIO_SYSTEM_START=0" for "PULSEAUDIO_SYSTEM_START=1"
9) Try unplugging audio hardware like external speakers and reboot.
Best Answer
The only way I've found to make my internal mic work in my laptops is to use
pavucontrol
(install it from the homonymous package) and disabling the volume of a channel (the right or the left one), since most of microphones are mono in fact.This is an huge workaround, by the way. I guess that this annoying bug should be fixed somewhere!