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audiotrouble [2016/11/07 18:39] slackermedia |
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| - | ====== Troubleshooting Linux Audio ====== | ||
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| - | <WRAP info> | ||
| - | **TL;DR** \\ | ||
| - | -Check hardware | ||
| - | -Turn all audio on and up in ''alsamixer'' | ||
| - | -Turn all audio on and up in ''kmix'' | ||
| - | -Turn all audio on and up in application | ||
| - | </WRAP> | ||
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| - | When sound doesn't work on you Linux machine, don't panic. On any operating system, there are at least four separate volume controls for sound: | ||
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| - | - Hardware: the hardware device, such as volume knobs on speakers, for instance. | ||
| - | - OS: the operating system audio configuration controlling which device attached to the computer should play sound. | ||
| - | - Desktop: the desktop master volume control, usually identified with a speaker icon in a system tray or menu bar. | ||
| - | - Applications: each individual applications producing the sound you expect to hear. | ||
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| - | The same is true for Linux. | ||
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| - | If you cannot hear sound from your Linux machine, or your Linux machine isn't accepting audio input from you, stay calm and perform these simple troubleshooting steps, in this order: | ||
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| - | ===== 1. Hardware ===== | ||
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| - | First, do a "dummy check" on your hardware: | ||
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| - | * If you're not hearing sound from your speakers, are you headphones plugged in by accident? | ||
| - | * Is the volume turned on your speakers or headphones? | ||
| - | * Are your speakers plugged in? | ||
| - | * Are you speakers //on//? | ||
| - | * Is your microphone plugged into the headphone (and not the speaker) port? | ||
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| - | It seems obvious, but a good audio engineer checks connections first. | ||
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| - | ===== 2. OS ===== | ||
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| - | Next, ensure that the audio inputs and outputs are detected by the OS, and that the levels are set. | ||
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| - | There are several interfaces that tap into the low level audio settings, but the clearest and most comprehensive is the most basic: ''alsamixer'' (ALSA being the audio driver on Linux). | ||
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| - | Launch and use ''alsamixer'' from a terminal, like ''konsole''. | ||
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| - | {{ alsamixer.png }} | ||
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| - | ===== 3. Desktop ===== | ||
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| - | {{ kmixfinal.png }} | ||
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| - | ===== 4. Applications ===== | ||
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| - | <WRAP centeralign> | ||
| - | <wrap fa>[[linuxaudio|R]]</wrap> <wrap fa>[[start|S]]</wrap> <wrap fa>[[pkg|Q]]</wrap> | ||
| - | </WRAP> | ||