Scientific Linux 7.2 on P510 - no audio for headphones?

It's weird, the OS seems to know that there is a (analog) front headphone port and a rear line output port and can detect my headphones plugged either. It shows analog out as a device to spread to and shows audio of, say, VLC go. I can put it out by default. I can adjust the settings and 100% flight, no mute. The headphones worked well with my previous workplace S30. In the past play with ALSAMixer or the restart would "solve" this problem and I would get audio, but nothing works for me today. Any ideas?

Based on your "alsamixer" screenshot, your devices are dumb.

Select the "Master" volume bar and am press the on the keyboard to switch between 'mute' and 'enable '.

Select the volume bar "Helmet" and am press the on the keyboard to switch between 'mute' and 'enable '.

I would like to know if it works.

Tags: ThinkStation

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