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- Input signal not found Check video source and video cable

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06-04-2018 08:21 AM
Two beeps followed by two beeps when switched on. Monitor message is 'Input signal not found. Check video cable and video source'. I've changed both cable monitor and get the same result. Both cable and monitor checked on a different computer and both work. Video card fault?
06-04-2018 08:55 AM
Hello,
If its 2 beeps 2 Beeps that means that the BIOS is corrupt:
https://support.hp.com/ee-en/document/bph07107
You could try that if the laptop is shutdown press and hold Win key + B key and turn on the desktop and this should initiate a BIOS crisis recovery;
Also, try to turn on the desktop without anything but a keyboard connected.
Then again if you have no signal, it could be that the graphics card is failing. Which port do you connect the monitor to ? and how many display ports do you have on the back (DisplayPort or HDMI or DVI or VGA) ?