if you use windows key + p and change it to laptop display only, does it work?
could be that the back light on the display has gone or a connector has become loose, take apart the back of the case near the hinge and push the connectors in tighter.
The backlighting on the screen has gone bad or something else with the screen. The external is driven off the video card and it can still work even though the internal is bad.
if you use windows key + p and change it to laptop display only, does it work?
could be that the back light on the display has gone or a connector has become loose, take apart the back of the case near the hinge and push the connectors in tighter.
if you use windows key + p and change it to laptop display only, does it work?
could be that the back light on the display has gone or a connector has become loose, take apart the back of the case near the hinge and push the connectors in tighter.