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#1
Buzzing on audio output and loss of mouse/keyboard:can't shut down
Suddenly after starting the computer and going online there was a loud buzz on my stereo output. The output goes from my optical audio. This has never happened before. I flipped the receiver to radio and it's fine. Typing on my backup computer now. The sound from this computer to a different input on the same receiver is fine.
The mouse and keyboard are fine here too. But none of my mice or keyboards work on my main computer. I have a wired mouse and keyboard bridging the two computers with a KVM so they can share the same screen too. On the main computer I also have a couple of mice and a keyboard attached wirelessly. This setup has been fine for a long time. Years.
But with the mouse and keyboard unresponsive (I've unplugged all but the wired one), there's no way to shut it down safely.
Can someone provide a plan to diagnose the problem or tell me how you solved a similar problem please?