I'm using Arch Linux x86_64 with Gnome and PulseAudio. I have USB speakers, which work for the sounds in system menus and most other applications. But whenever I play Flash videos, they output their sound through the onboard sound card (which usually isn't hooked up to anything). This happens in both Firefox and Chromium. I can't find anything that would let me redirect Flash's audio output to my USB speakers.The following relevant packages are installed:gnome-media-pulsegnome-settings-daemon-pulselibcanberra-pulsepavucontrolpulseaudiopulseaudio-alsalib32-libcanberra-pulselib32-libpulseflashplugin
Flash using wrong audio output with Pulseaudio
arch linux;audio;adobe flash
The solution I found was to install the libflashsupport-pulse package from AUR and restart my computer.