Lost sound suddenly, help.

[Kuen]

This is the hardware of the PC on which Mint Xfce has been running for several months smoothly.
Old PC: Acer aspire M5700
CPU: Intel Core2 Quad
RAM: DDR2 800 SDRAM 4G
GPU: Removed now use on board Intel G45
MB : G45T AM2 V:1.0 motherboard
HDD: Seagate Momentus 5400rpm 120gb

About an hour ago, I was typing something. I hit one or two keys with my right hand little finger at the upper right corner of the keyboard. The sound vanished immediately. Tried to fix it but all failed.

Help, please?

[Pjotr]

1. Make a picture of your keyboard, at least of the relevant section, upload it to https://postimages.org and post the link in your reply.

2. Please generate an overview of your system like this:

- Launch a terminal window (this is how to launch a terminal window);

- Make the terminal window full screen, to avoid chopped lines;

- Copy/paste this command into the terminal:

Code: Select all

inxi -Fxxxpmrz

(if you type: the letter F is a capital letter, and don't omit the space after inxi!)

Press Enter.

Copy/paste the output in your next message.