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If you can't hear any sounds on your computer, for example when you try to play some music, try these troubleshooting steps to see if you can fix the problem.

Se non pode escoitar ningún son no seu computador, por exemplo cando reproduce música, tente estes pasos de resolución de erros para ver se pode arranxar o problema.

<title>Make sure that the sound is not muted</title>

Click the sound icon on the top panel (it looks like a speaker) and make sure that the sound is not muted or turned right down.

Some laptops have mute switches or keys on their keyboards—try pressing that key to see if it unmutes the sound.

<title>Asegúrese que o son non está desactivado</title>

Prema a icona de son no panel superior (semella un altofalante) e asegúrese de que o son non estea silenciado ou na posición cara abaixo.

Algúns equipos portátiles teñen interruptores de silencio ou teclas nos seus teclados, probe a premer dita tecla para ver se se activa o son.

You should also check that you haven't muted the application that you're using to play sound (e.g. your music player or movie player). The application may have a mute or volume button in its main window, so check that. Also, click the sound icon on the top panel and choose <gui>Sound Preferences</gui>. When the <gui>Sound</gui> window appears, go to the <gui>Applications</gui> tab and check that your application is not muted on there.

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<title>Check that the speakers are turned on and connected properly</title>

If your computer has external speakers, make sure that they are turned on and that the volume is turned up. Make sure that the speaker cable is securely plugged into the "output" audio socket on the back of the computer. This socket is usually light green in color.

Some sound cards are able to switch which socket they use for output (to the speakers) and input (from a microphone, for instance). The output socket may be different when running Linux than on Windows or Mac OS. Try connecting the speaker cable to the different audio sockets on the computer in turn to see if that works.

A final thing to check is that the audio cable is securely plugged into the back of the speakers. Some speakers have more than one input too.

<title>Comprobe que os altoparlantes están acendidos e están conectados correctamente</title>

Se o seu equipo ten altoparlantes externos, asegúrese de que están acendidos e que o volume está activado. Asegúrese de que o cable do altavoz esté conectado ao zócalo de «saída» na parte posterior do equipo. Esta toma é polo xeral de cor verde claro.

Algunhas tarxetas de son son capaces de cambiar o zócalo que usan para a saída (dos altoparlantes) e a entrada (desde o micrófono, por exemplo) e a entrada (desde o micrófono, por exemplo). O zócalo de saída pode ser diferente cando se executa Linux no lugar de Windows ou Mac OS. Tente conectar o cable do altavoz aos diferentes zócalos de audio no equipo sucesivamente, para ver se funciona.

Unha última cousa que comprobar é que o cable de son estea conectado correctamente na parte traseira dos altoparlantes. Algúns altoparlantes teñen máis dunha entrada.

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<title>Check that the right sound device is selected</title>

Some computers have multiple "sound devices" installed. Some of these are capable of outputting sound and some are not, so you should check that you have the correct one selected. This might involve some trial-and-error to choose the right one.

<title>Comprobe que o dispositivo de son correcto está seleccionado</title>

Algúns equipos teñen varios «dispositivos de son» instalados. Algúns destes son capaces de facer saír o son e outros non, así que vostede debe comprobar que ten seleccionado o correcto. Isto podería implicar algún ensaio e erro para elixir o correcto.

<steps>

<item>

Click the sound icon on the top panel and select <gui>Sound Preferences</gui>.

</item>

<item>

In the <gui>Sound</gui> window that appears, go to the <gui>Hardware</gui> tab. Make a note of which device and which profile are selected (so you can return to the default selections if changing them doesn't work).

</item>

<item>

For the selected device, try changing the profile—play a sound after you change the profile to see if it works. You might need to go through the list and try each profile.

</item>

<item>

If that doesn't work, you might want to try doing the same for any other devices that are listed.

</item>

<item>

Try changing the <gui>Connector</gui> option in the <gui>Output</gui> tab too.

Prema a icona de son no panel superior e seleccione <gui>Preferencias de son</gui>.

</item>

<item>

Na xanela de <gui>Son</gui> que aparece, vaia á lapela <gui>Hardware</gui>. Tome nota de que dispositivo e perfíl están seleccionados (para que poida volver ás seleccións predeterminadas se o cambio non funciona).

</item>

<item>

Para o dispositivo seleccionado, tentar cambiar o perfíl; reproducir un son despois de cambiar o perfíl, para comprobar que funciona. Pode necesitar ir a través da lista e probar cada perfíl.

</item>

<item>

Se iso non funciona, pode tentar facer o mesmo con calquera dos dispositivos que se mostran.

</item>

<item>

Tente cambiar a opción <gui>Conector</gui> na lapela <gui>Saída</gui> tamén.

</item>

</steps>

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<title>Check that the sound card was detected properly</title>

Your sound card may not have been detected properly. If this has happened, your computer will think that it isn't able to play sound. A possible reason for the card not being detected properly is that the drivers for the card are not installed.

<title>Comprobe que a tarxeta de son foi detectada correctamente</title>

Pode que a súa tarxeta de son non se teña detectado correctamente. Se aconteceu isto, o equipo vai pensar que non é capaz de reproducir o son. Unha posíbel razón para que non se detecte a tarxeta correctamente é que os controladores da tarxeta non están instalados.

<steps>

<item>

Go to the <gui>Activities</gui> overview and open a Terminal.

Vaia á vista previa de <gui>Actividades</gui> e abra un terminal.

</item>

<item>

Type <cmd>aplay -l</cmd> and press <key>Enter</key>.

Escriba <cmd>aplay -l</cmd> e prema <key>Intro</key>.

</item>

<item>

A list of devices will be shown. If there are no <gui>playback hardware devices</gui>, your sound card has not been detected.

</item>

</steps>

If your sound card is not detected, you may need to manually install the drivers for it. How you do this will depend on the card you have.

Se non se detecta a súa tarxeta de son, pode que teña que instalar manualmente os controladores. A forma de facelo dependerá da tarxeta que teña.

You can see what sound card you have by using the <cmd>lspci</cmd> command in the Terminal. You may have to run <cmd>lspci</cmd> as <link xref="user-admin-explain">superuser</link>; either type <cmd>sudo lspci</cmd> and type your password, or type <cmd>su</cmd>, enter the root (administrative) password, then type <cmd>lspci</cmd>. See if an audio controller or audio device is listed—it should have the sound card's make and model number. <cmd>lspci -v</cmd> will show a list with more detailed information.

You may be able to find and install drivers for your card. It's best to ask on support forums (or otherwise) for your Linux distribution for instructions.

Pode que encontre e saiba instalar os controladores para a súa tarxeta. O mellor é pedir instrucións nos foros de soporte (ou similares) para a súa distribución de Linux.

If you can't get drivers for your sound card, you might prefer to buy a new sound card. You can get sound cards that can be installed inside the computer and external USB sound cards.

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