TOSHIBA Satellite boots up to windows but no display on screen

[LJGGARCIA]

I have a Toshiba SatelliteL850-A634 laptop, the problem is it doesn't display in external monitor and no display on LED screen either, but it boots normally to windows I hear the log in sound, the LED screen seems to be working fine when I tested it to another laptop, I also tried external pressing fn+F4 key, windows logo + letter P still cannot display in external monitor. Do you have any idea or solution to my problem?

[trebo]

Re: TOSHIBA Satellite boots up to windows but no display on screen

I have a Toshiba SatelliteL850-A634 laptop, the problem is it doesn't display in external monitor and no display on LED screen either, but it boots normally to windows I hear the log in sound, the LED screen seems to be working fine when I tested it to another laptop, I also tried external pressing fn+F4 key, windows logo + letter P still cannot display in external monitor. Do you have any idea or solution to my problem?

I know you said it wont show up on external screen, (that may be another issue) but have you tried shinning a torch into your laptop screen to see if there is a image in the background when you hear windows start up, you may have a Faulty inverter

[trebo]

Re: TOSHIBA Satellite boots up to windows but no display on screen

just realised its LED

[Francisco.s]

Re: TOSHIBA Satellite boots up to windows but no display on screen

I have no Schematic for this laptop, but the problem could be a bad capacitor, a special one made by NEC-TOKIN. It is a normal problem in TOSHIBA laptops.

[LJGGARCIA]

Re: TOSHIBA Satellite boots up to windows but no display on screen

I have no Schematic for this laptop, but the problem could be a bad capacitor, a special one made by NEC-TOKIN. It is a normal problem in TOSHIBA laptops.

there are no NEC-TOKIN part in the mainboard, tried reheating the video chipset/gpu and its still the same, I hear login sound but no display., an suggestions, ideas or solution?

[nish_pinto]

Re: TOSHIBA Satellite boots up to windows but no display on screen

You 'll have to change your motherboard.

[siddiq]

Re: TOSHIBA Satellite boots up to windows but no display on screen

What is the motherboard model?

[Francisco.s]

Re: TOSHIBA Satellite boots up to windows but no display on screen

there are no NEC-TOKIN part in the mainboard, tried reheating the video chipset/gpu and its still the same, I hear login sound but no display., an suggestions, ideas or solution?

Could be a bios related problem, but the probabilities are not many.

[nelfig]

Re: TOSHIBA Satellite boots up to windows but no display on screen

either its screen or cable

[gabik111]

Re: TOSHIBA Satellite boots up to windows but no display on screen

either its screen or cable

No , because it does not display on external monitor too.
I do not know if lid switch was checked but it was my first thought.

[goodbrethen]

Re: TOSHIBA Satellite boots up to windows but no display on screen

Fn+f4 key is not for external display shortcut key it's fn+f5, first try to remove the battery and insert the vga cable before you turn on the laptop and press f2 to enter bios setup.

[spidey]

Re: TOSHIBA Satellite boots up to windows but no display on screen

reball the gpu, or if its integrated reball northbridge.

[thesloc]

Re: TOSHIBA Satellite boots up to windows but no display on screen

reball the gpu, or if its integrated reball northbridge.

Could be this.

Or it could be a fuse problem, which is common to this problem.

[spidey]

Re: TOSHIBA Satellite boots up to windows but no display on screen

reball the gpu, or if its integrated reball northbridge.

i repeat, reball.