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Sound doesn't work on a Centos 6.5 VPS

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I installed GNOME Desktop Environment on Centos 6 on my VPS, then I installed Firefox, Flashplayer and VLC. Everything work well but I can't hear the sound. I searched for a solution on the Internet but couldn't find.

Here are 3 screenshots for the system, the sound output and the sound card after running 'alsamixer' from the terminal.

audio

share|improve this question

edited Mar 5 '15 at 23:07

Gilles

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asked Mar 5 '15 at 16:44

ninoplanninoplan

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add a comment | 

1

1

I installed GNOME Desktop Environment on Centos 6 on my VPS, then I installed Firefox, Flashplayer and VLC. Everything work well but I can't hear the sound. I searched for a solution on the Internet but couldn't find.

Here are 3 screenshots for the system, the sound output and the sound card after running 'alsamixer' from the terminal.

audio

share|improve this question

edited Mar 5 '15 at 23:07

Gilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

asked Mar 5 '15 at 16:44

ninoplanninoplan

611 bronze badge

bumped to the homepage by Community♦ 9 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

add a comment | 

I installed GNOME Desktop Environment on Centos 6 on my VPS, then I installed Firefox, Flashplayer and VLC. Everything work well but I can't hear the sound. I searched for a solution on the Internet but couldn't find.

Here are 3 screenshots for the system, the sound output and the sound card after running 'alsamixer' from the terminal.

audio

share|improve this question

edited Mar 5 '15 at 23:07

Gilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

asked Mar 5 '15 at 16:44

ninoplanninoplan

611 bronze badge

share|improve this question

edited Mar 5 '15 at 23:07

Gilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

asked Mar 5 '15 at 16:44

ninoplanninoplan

611 bronze badge

share|improve this question

edited Mar 5 '15 at 23:07

Gilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

asked Mar 5 '15 at 16:44

ninoplanninoplan

611 bronze badge

edited Mar 5 '15 at 23:07

Gilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

edited Mar 5 '15 at 23:07

Gilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

asked Mar 5 '15 at 16:44

ninoplanninoplan

611 bronze badge

asked Mar 5 '15 at 16:44

ninoplanninoplan

611 bronze badge

1 Answer
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Your server only has a “Dummy Output” for sound, so it's normal that you don't hear anything. (That's dummy in the sense of “a deliberately nonfunctional device or tool used in place of a functional one”, it's a coincidence that it happens to match the “mute” meaning of dummy.)

If this was a physical server rather than a VPS, you would be attempting to play a sound through the server's loudspeakers (you wouldn't normally have the permission to do so when you aren't using the console though). VNC doesn't forward sound, only keyboard/mouse input and windowed display.

You'll need to set up sound forwarding separately. See

• How to remote Linux desktop with audio support


• How can I forward sound over VNC?


• Sending audio through network


• Linux newbie: How do I use Jack? How does Linux sound work?

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

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answered Mar 6 '15 at 0:42

GillesGilles

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0

Your server only has a “Dummy Output” for sound, so it's normal that you don't hear anything. (That's dummy in the sense of “a deliberately nonfunctional device or tool used in place of a functional one”, it's a coincidence that it happens to match the “mute” meaning of dummy.)

If this was a physical server rather than a VPS, you would be attempting to play a sound through the server's loudspeakers (you wouldn't normally have the permission to do so when you aren't using the console though). VNC doesn't forward sound, only keyboard/mouse input and windowed display.

You'll need to set up sound forwarding separately. See

• How to remote Linux desktop with audio support


• How can I forward sound over VNC?


• Sending audio through network


• Linux newbie: How do I use Jack? How does Linux sound work?

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

1

answered Mar 6 '15 at 0:42

GillesGilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

add a comment | 

0

Your server only has a “Dummy Output” for sound, so it's normal that you don't hear anything. (That's dummy in the sense of “a deliberately nonfunctional device or tool used in place of a functional one”, it's a coincidence that it happens to match the “mute” meaning of dummy.)

If this was a physical server rather than a VPS, you would be attempting to play a sound through the server's loudspeakers (you wouldn't normally have the permission to do so when you aren't using the console though). VNC doesn't forward sound, only keyboard/mouse input and windowed display.

You'll need to set up sound forwarding separately. See

• How to remote Linux desktop with audio support


• How can I forward sound over VNC?


• Sending audio through network


• Linux newbie: How do I use Jack? How does Linux sound work?

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

1

answered Mar 6 '15 at 0:42

GillesGilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

add a comment | 

Your server only has a “Dummy Output” for sound, so it's normal that you don't hear anything. (That's dummy in the sense of “a deliberately nonfunctional device or tool used in place of a functional one”, it's a coincidence that it happens to match the “mute” meaning of dummy.)

If this was a physical server rather than a VPS, you would be attempting to play a sound through the server's loudspeakers (you wouldn't normally have the permission to do so when you aren't using the console though). VNC doesn't forward sound, only keyboard/mouse input and windowed display.

You'll need to set up sound forwarding separately. See

• How to remote Linux desktop with audio support


• How can I forward sound over VNC?


• Sending audio through network


• Linux newbie: How do I use Jack? How does Linux sound work?

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

1

answered Mar 6 '15 at 0:42

GillesGilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

share|improve this answer

edited Apr 13 '17 at 12:36

Community♦

1

answered Mar 6 '15 at 0:42

GillesGilles

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edited Apr 13 '17 at 12:36

Community♦

1

edited Apr 13 '17 at 12:36

Community♦

1

answered Mar 6 '15 at 0:42

GillesGilles

563k134134 gold badges11591159 silver badges16681668 bronze badges

answered Mar 6 '15 at 0:42

GillesGilles

563k134134 gold badges11591159 silver badges16681668 bronze badges