I have 3 installs of Deepin and I find issues with sound are huge. Sound will stop working, even if you do a reset it doesn't work. This issue appears to be related to having USB headsets.

I have found sound dying when I am trying to run two apps trying to use the sound system as well. It is such a big issue, that the system I use for gaming I will have to install another distro. As I need to chat with people while playing games and hear the game sound as well.

On my work computer it can be really funky where the sound system defaults away from playing on my USB headphones back to the speakers, which is a problem as everyone in the office starts hearing my music.

Please tell me your computer and sound card model, thank you

Deepin 2014.2 64bit - Kernel 3.13.0-45-generic
CPU - AMD FX 8350 - 8 core
Motherboard - MSI MS-7640
Audio Adapter HDA - ATI SB - this also controls USB sound
Audio Adapter HDA NVida
Audio Adapter USB-Audio Logitech USB Headset H540

I have the same problem. I can barely hear some system sounds, but when on Chrome on YouTube or Twitch etc. sound does not work. I can't hear anything. I can't even hear anything in the music player.