My toshiba laptop will try to start up but the screen stays black

It may be stuck in hibernation. Just press and hold the power button for 8 seconds until it shuts down all the way. Power it back on and you should be good

A blacked-out screen doesn't necessarily indicate a broken monitor.
If the computer has run out of charge or is in hibernation or sleep mode, if the screen is too dark, or if the display cable has come disconnected from the motherboard, the screen may appear black or fail to turn on. To fix a blacked-out laptop screen, troubleshoot the screen settings, check the LCD connector and see if the computer is awake and receiving power.
Touch the touchpad or move the external mouse to see if the computer is asleep or hibernating. If the computer fails to respond, press "Enter" on the keyboard. Press the power button if the screen remains black. Confirm that the power indicator light, found at the front of the computer or above the keyboard, is glowing solid green or blue. Confirm that the power adapter is plugged into the computer and into a wall outlet. Confirm that battery indicator light is glowing solid green or blue. Hold down the "Fn" key. Press the up-arrow to see if the screen brightness increases.
Some computers also use the "F6" or "F7" keys to increase screen brightness. Hold down the power button for 10 seconds to turn off the laptop.
Remove the AC adapter from the computer, close the screen, and then turn the PC over. Slide the battery latch to eject the battery. Pull the battery out of its compartment. Turn the computer back over, open the lid, and insert the edge of a flathead screwdriver or other flat, solid object beneath the bezel above the keyboard. Wedge the edge of the keyboard bezel off of the top cover.
Work your way along the edge of the keyboard bezel to loosen it.
Pull the bezel off the laptop. Trace the cable coming from the laptop screen to the connector found beneath the bezel.

Reconnect the display cable to the motherboard if the cable has come loose from the connector.
Line up the tabs on the bezel with the slots along the top of the keyboard. Insert the right edge of the bezel into the gap above the keyboard, and then push the bezel back in place. Turn the computer back on.

If the laptop screen is still blacked out, connect an external monitor to the video port on the side of the PC to confirm that the video card isn't defective.

If the external monitor works, the LCD screen could be broken.
If the monitor doesn't work, the motherboard or video card might need to be replaced. Hope this helps.

hi my dear friend
don't worryre install all the driver
okay !!!

Hello,

The screen might be in sleep or hibernation mode, try move the mouse, and check if it will respond. If not forcely turned OFF the laptop, remove the power sources ( charger and battery) and hold down the power button for 10 secs. Put the power sources back and turn ON the laptop.

Hope it works :)

Do not hold the power button down while pressing the "0" key - it'll shut the computer off again. You just need to push it once to turn the power on and then hold the "0" key immediately after you push the power button on - just like turning on the laptop, but this time you're holding the "0" key down.

could be bad screen ok or video controller will have to have parts to test

my suggection is that the element has gone so it would be cheaper for you to take it to the shop for repair.

try this with just the ac plugged in and the battery removed. Sometimes the battery, when fully discharged, can cause the system to shut down.

check your warranty here for Free

Hi, what happens when you push the button? Lights, sounds from inside the laptop, anything flash on the screen?