What should I do if my computer doesn't recognize the monitor, keyboard, or mouse?

Answer by  selvarajan (71)

The system may be affected by hardware problem . Some times the ROM and RAM not working properly. Please check the power supply to all peripherals, connecting plug And socket. Check the quality of the peripherals. Please contact with a honest hardware mechanic.

Answer by  Manda (1103)

I would suggest you unplug the device and plug it back in. Or reboot the computer. I've done this myself before and it works for me.

Answer by  BrokenWits (382)

You should first try restarting it, and see if that fixes the issue. If that doesn't work, contact the manufacturer.

Answer by  cervert (26)

Check that all monitor, keyboard, and mouse cables are plugged in. Then restart the computer and then see if the monitor, keyboard, and mouse work. If above process does not work take monitor, keyboard, and mouse to another computer and test them.

Answer by  Alisha (224)

It probably sounds obvious, but first check to make sure that everything is plugged in to each other. Then try turning off the computer, waiting for a few minutes, and rebooting. Often this will fix the problem all by itself. Give customer service a try as a last resort, but be prepared to wait on hold for a while.

Answer by  ntblujay (3)

After replacing monitor the keyboard and mouse don't work. What could be the problem?