My mouse isn't working, the laser light isn't turning on even though I plugged the USB into my laptop. What do I do? - Quora
![Newly built PC showing no signal. My mouse and cpu both light up and the fan starts, but my keyboard doesn't light up, not sure abt this. I see people saying to Newly built PC showing no signal. My mouse and cpu both light up and the fan starts, but my keyboard doesn't light up, not sure abt this. I see people saying to](https://preview.redd.it/newly-built-pc-showing-no-signal-my-mouse-and-cpu-both-v0-9nvz5r9ynela1.jpg?width=640&crop=smart&auto=webp&s=a803500298c29efebf43c1ad312937e20b56aa39)
Newly built PC showing no signal. My mouse and cpu both light up and the fan starts, but my keyboard doesn't light up, not sure abt this. I see people saying to
![Troubleshooting] Mouse is showing lights even the PC is turned off? - Mouse - HardwareMana Community Troubleshooting] Mouse is showing lights even the PC is turned off? - Mouse - HardwareMana Community](https://www.hardwaremana.community/uploads/default/original/1X/6974e658b7bfe05a642ec417aa2f2c227161c0b2.jpeg)