sound and touchpad does not work at all.

Asked by Agatha A. Kanakamuni on 2017-11-05

sound and touch pad does not work at all.
my device is not on the mute mode, I had tried to use headphones, and still nothing to hear.
the touch pad is not working but if I use external mouse, it works properly.
I had tried all the suggested command. what should I do then? please kindly help me, I am totally a newbie and stressed out. I just want my device works properly.

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Does the system have a make and model?

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