Laptop no video anymore

Exeter

Prominent
May 22, 2017
4
0
510
Hello,

My Toshiba Satellite Laptop L-355-S795 Windows Vista (Model PLSD8U-0Q3033), was working good. Suddenly the laptop start, I clearly hear she arrives to Windows but NO video anymore.

Greetings, Exeter
 

Exeter

Prominent
May 22, 2017
4
0
510
Hello robert600,

Thank you for your kind tip. Yesterday I used an external monitor following your advice and the video was perfect on it, but, this morning when I tried to open Windows again both screens are black
 

robert600

Distinguished
That's rather odd. I wonder if it isn't trying to use the laptop monitor.

Here's what I would do. i would disconnect the ribbon cable attaching your laptop's screen to the motherboard. I can't say for sure about your laptop but usually it is located beneath the keyboard so ... remove the keyboard ... detach the video cable ... reinstall the keyboard. This should 'force' the laptop to use the external monitor. Do you have or can you get a service manual for your laptop?