I’m experiencing an issue with my Lenovo IdeaPad Slim 5i laptop.
The laptop boots and works normally only when connected to an external monitor, but the built-in screen remains completely black.
The situation is as follows: the laptop works perfectly with an external monitor, internal laptop screen stays black at all times, i tried display shortcut keys (Fn + display key) with no effect and Windows display settings did not restore the internal screen.
I tried to restart, switching display modes (Duplicate / Extend), uninstalling and reinstalling graphics drivers and checking brightness and power settings.
Is there any additional diagnostic step I should try before opening the laptop or taking it to a repair shop?
