Difference between revisions of "Template:Basiccheck"
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| − | + | '''Test Internal Speakers and 1/8" Audio Jack'''<br> | |
| − | + | ☐ Open a Terminal and type <code>speaker-test -t wav -c2 -l1</code> | |
| − | + | *You should hear an audio file play from both the right and left speakers. | |
| − | ''' | + | ☐ Find the headphone jack; it is usually colored green or marked with a headphone symbol. <br> |
| − | + | ☐ Find a pair of headphones or speakers from the shelf.<br> | |
| − | + | ☐ Repeat the audio test or use an audio CD to test the jack output; mark your findings on the Keeper label. <br> | |
| − | ''' | + | *UPDATE KEEPER LABEL AND INSTRUCTIONS |
| − | + | *TIP: Use the same Terminal window and hit the up arrow, and then hit enter to repeat the sound file command. | |
| + | '''Troubleshooting Audio'''<br> | ||
| + | In laptops, we cannot physically replace the sound card, like we can in a desktop system. This limits our options when things go wrong. However, we can: | ||
| + | *ensure that the sound card is recognized by the system by running <code>lspci <nowiki>|</nowiki> grep -i audio</code>. | ||
| + | *double check that audio is not muted in the operating system. Click on the audio symbol in the top panel of the Desktop to check the volume settings. | ||
| + | *run <code>alsamixer</code> in a terminal and check that volume levels for "Master" and "PCM" are set around 90. | ||
| + | '''Requirements'''<br> | ||
| + | At best, all audio outputs should work.<br> | ||
| + | * Note if speakers do not work, or are not present.<br> | ||
| + | * Note if the headphone jack does not work.<br> | ||
| + | * If neither the internal speakers nor the headphone jack work, check with your instructor.<br> | ||
Revision as of 13:04, 13 June 2013
Test Internal Speakers and 1/8" Audio Jack
☐ Open a Terminal and type speaker-test -t wav -c2 -l1
- You should hear an audio file play from both the right and left speakers.
☐ Find the headphone jack; it is usually colored green or marked with a headphone symbol.
☐ Find a pair of headphones or speakers from the shelf.
☐ Repeat the audio test or use an audio CD to test the jack output; mark your findings on the Keeper label.
- UPDATE KEEPER LABEL AND INSTRUCTIONS
- TIP: Use the same Terminal window and hit the up arrow, and then hit enter to repeat the sound file command.
Troubleshooting Audio
In laptops, we cannot physically replace the sound card, like we can in a desktop system. This limits our options when things go wrong. However, we can:
- ensure that the sound card is recognized by the system by running
lspci | grep -i audio. - double check that audio is not muted in the operating system. Click on the audio symbol in the top panel of the Desktop to check the volume settings.
- run
alsamixerin a terminal and check that volume levels for "Master" and "PCM" are set around 90.
Requirements
At best, all audio outputs should work.
- Note if speakers do not work, or are not present.
- Note if the headphone jack does not work.
- If neither the internal speakers nor the headphone jack work, check with your instructor.