Solved! Lenovo g500 display is black with backlight

OhMiBod

Commendable
Jan 8, 2017
5
0
1,510
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my Lenovo g500 does not show anything at all when I power it on. The backlight is on but the screen is just a black colored screen with not even the boot logo. I can hear the fan spin the moment the power comes on and when I put a disc in, it spins.

When I try to connect it to an external display, nothing shows up. I once opened the inside and disconnected the display cord with the motherboard and monitor and reconnected it but it still didn't work.

When I charge, the charging indicator lights up. I even uplugged the battery and held down the power button for 30 second while the ac was pulled out and on(tried both).

My monitor kinda shows some distorted white blurry ghost looking color when I tilt it back and forth. It's been happening even before the laptop had the black display issue. When this first occurred, I remember seeing the desktop a bit right after the pitch black screen with some warning or error prompt then the screen went black again(with backlight)

I heard it might have something to do with lvds cable whatever those are. Not sure how to buy or replace them. I know it's not an inverter or display hardware problem.

Not sure if it's a gpu error or is something inside damaged?
 
No, if the graphics card/GPU is done for the motherboard may need replacing because the it could be attached to it, and it is a bit of work and tricky to change one out. :) So the rest of the motherboard can work fine, but need replacing due to that.
 
If it won't show at all, after all that, on the attached display and it won't show anything at all on an external monitor as well, then it is probably the graphics card/GPU that is the problem.

This would mean it would need replacing, and may well need the motherboard replaced.
 

OhMiBod

Commendable
Jan 8, 2017
5
0
1,510
0


exactly nothing shows at all. even left it on for a day too. Been having some flicker white glare when tilting monitor but not sure if that's related to black screen issue. The disc still spins and I can kinda hear fan spin out some air a bit. I'd assume that if it was mother board issue the thing wouldn't even turn on that's why I keep trying to fix it in case it's a display error but it won't even connect to external display. There's no way to access the os so I can't fix drivers. I even took out the hdd and tried booting the laptop with a usb with Ubuntu also but nothing.
 
No, if the graphics card/GPU is done for the motherboard may need replacing because the it could be attached to it, and it is a bit of work and tricky to change one out. :) So the rest of the motherboard can work fine, but need replacing due to that.
 

OhMiBod

Commendable
Jan 8, 2017
5
0
1,510
0


well, i'm trying to sell it on ebay. How much would it be worth? I'm putting it up for about 85 u.s dollars. and yes it's most likely some apu chipset with cpu and gpu together so it is attatched to motherboard.
 
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