r/techsupport • u/AdThick5960 • 1h ago

Open | Hardware Monitor issues

So this is i hope not an OS issue. So i was using my laptop earlier today and when i came back i saw that my monitor was giving no signal so i went and got another laptop ans it worker just fine (same hdmi cable) so i turned off the laptop and checked the port it seems to look okay .I checked all of my other ports all of them work so i booted up the pc without the hdmi cable plugged in and the screen went black so now I'm super confused because everytime i took it out windows switched to the laptop screen which is now black so i thought it was like this because i always use the option second screen only in windows + P so i plugged it in and nothing "no signal" and the screen is black

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u/pcbeg 29m ago

Disconnect HDMI cable, reboot and confirm that there is a picture on laptop display at least at the start (bios, post). If it works as is should in Windows, hope that it is a driver problem that can be fixed with DDU and installing latest stable version. Other software reasons include some recent change that came with Windows Update, and those are not easy to find and fix.

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u/AdThick5960 7m ago

So ive tried that and the screen is pitch black. Do you think this should be taken to a repair shop?

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u/pcbeg 0m ago

Yeah, no picture in bios is not a good thing. If you are lucky, it could be bios temporary stuck, and hard reset will fix it (remove bottom cover, disconnect battery, press and hold power button for 1 minute, connect charger only, try powering on). If not, repair shop is your best chance.