Difference between revisions of "Template:Basiccheck"

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'''Requirements'''<br>
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[[Category:Delete]]
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>
 
 
 
'''Test Internal Speakers and 1/8" Audio Jack'''<br>
 
&#9744; 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.
 
&#9744; Find the headphone jack; it is usually colored green or marked with a headphone symbol. <br>
 
&#9744; Find a pair of headphones from the shelf.<br>
 
&#9744; Repeat the audio test or use an audio CD to test the jack output; mark your findings on the Keeper label. <br>
 
 
 
<blockquote>
 
'''TIP''':  Use the same Terminal window and hit the up arrow to bring up a previously typed command, and then hit enter to repeat the command.
 
</blockquote>
 
 
 
<blockquote>
 
'''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.
 
</blockquote>
 
 
 
[[Category:Laptops]]
 

Latest revision as of 20:35, 6 November 2013