matti777
August 16th, 2016, 05:27 PM
Hi, last week I finally updated my 14.04 LTS system to 16.04. Right after the update I noticed this highly annoying issue with audio; it keeps disappearing. When I check the Sound Settings, I notice a output device called 'Dummy Output' has appeared and is selected. If I select my real audio device (and, possibly, stop/resume my audio source) the audio continues to play. This appears to occur at random intervals (anything from 5 minutes to an hour or so).
Exact steps to reproduce (well, on my system..):
Starts watching a movie (tried Movies, vlc, SMPlayer)
After a random amount of time the sound disappears, movie keeps playing
Taking a look to Sound Settings.. I notice an incorrect output device called Dummy Output has appeared and is selected (see screenshot)
I select the correct device and possibly stop/play the video player
Audio resumes properly
http://777-team.org/~matti/tmp/audio_screenshot.png
This is the output for aplay -l:
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
Any ideas appreciated.
- Matti
Exact steps to reproduce (well, on my system..):
Starts watching a movie (tried Movies, vlc, SMPlayer)
After a random amount of time the sound disappears, movie keeps playing
Taking a look to Sound Settings.. I notice an incorrect output device called Dummy Output has appeared and is selected (see screenshot)
I select the correct device and possibly stop/play the video player
Audio resumes properly
http://777-team.org/~matti/tmp/audio_screenshot.png
This is the output for aplay -l:
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
Any ideas appreciated.
- Matti