Screen of my laptop is not working anymore?

Today I turned on my laptop, but the screen did not turn on. The keyboard lights, fans go. Has been here for 5 hours and he can't stand it anymore. Battery is not removable. Already tried to connect to an external screen, unfortunately, here is no picture.

To switch it off you have to press the Power / IO Button for a long time.

If you want to connect a monitor first check the screen and then use the other connections on your laptop

Switch off (power pack, power supply). If he does not go out wait until the battery is exhausted. Wait 10 minutes. Plug in power supply again and check if the problem persists.

If yes then: Visit the service workshop check (charge) and give a quote for the repair if no warranty on the device.

Can be broken on board graphics, inverter or display.

If there's still warranty on it. Corresponding with the manufacturer or shop (where you bought the) in connection and asked how to fix this in the warranty case, the problem.

If the other users' switch-off tips do not work and the external monitor does not display anything (in order for this to work, you may have to press any key combinations specified by the manufacturer!), Then only one option remains open: Graphics card or graphics chip defective.

Otherwise the power supply of the screen, the monitor cable or the screen itself could be affected.