Sound no longer works-Audio driver not plugged in

I can’t get sound from my computer, (Satellite 115D-S1120) even with a headset. I opened the control panel/ sound and under the playback tab it says:
Digital Output Coexant Audio driver for AMD HDMI codec not plugged in
I've looked on the net and this forum, but don't see what the problem is or how to fix it. By the way, I'm okay following computer directions and fixing problems I can see, but I’m not sophisticated with downloading drivers, etc.
I appreciate your help. My computer without sound is not very useful!
Thanks,
Sondra

Sondra, see the section Recovering the Internal Storage Drive, which begins on p. 58 of the User's Guide.
   Satellite T110/T130 Series User’s Guide
Best to restore completely from the hidden partition as explained on p. 59 in the section Recovering to out-of-box state (recommended recovery method).
Everything on the hard drive is replaced by this procedure.
1. In case restoring does not fix the audio problem, you may want to add an external sound device or have the machine repaired. In that case, it's likely you would want to return the hard drive to its present state. You can provide for that by creating an image of the disk on an external drive.
   Back up your programs, system settings, and files
   Restore your computer from a system image backup
2. In any case, you should separately back up all of your important data files to external media. If the sound works after restoring, you'll want to reinstall added applications, restore the data files, and redo all your settings.
3. Before restoring, you should burn recovery discs. See the section Creating recovery DVDs/media, which begins on p. 66.
Questions?
-Jerry

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The back port is working, so it isn't the cable.
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HT204266 The sound no longer works on my ipad?

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Sound no longer works-Audi​o driver not plugged in

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Sound no longer works-Audio driver not plugged in