dim laptop screen

Posted on 2013-10-11
Medium Priority
Last Modified: 2013-12-12
Got Sony Vaio PCG-71315L
The screen got broken, and we had to replace it , we bought

and once we replaced the screen, i can barely see what's going on in the background, cause there is no light.
Note: there is no inverter for this screen.

i tested my HP screen, it is the same size and same connection, and it gave the same result, so the two screens (i doubt they are both bad.
could it be the cable that connects the screen to the mother board ?
or is there anything else might be missing ?
Question by:Da_Ch0sen
LVL 14

Expert Comment

ID: 39567205
Press the Fn key and the F9 F10 or F11
there will be a sign on the key
connect the AC adapter and try these things
sometimes due to power saving mode the laptops running on batteries dim the display
if both of these things does not work then, its the display issue

Author Comment

ID: 39567280
I did try all of that.
Even in the bios and at the POST there is no light enough to read.
I know it's a display issue. But as mentioned  earlier I did change the screen and still same problem. Could it be anything else ? (Like the cable that connects the screen to the motherboard for example.

Expert Comment

ID: 39567301
Could be because the screen isn't correctly recognized by the motherboard BIOS or power control settings (like the ones for sleep or power savings mode) and since it doesn't its still using the settings its at before the swap.
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Author Comment

ID: 39567568
No even the old screen the cracked one. It's showing dimmed as well.
It used to be cracked but bright lit. Not anymore !! What could be need changing ?
LVL 93

Accepted Solution

nobus earned 1500 total points
ID: 39567751
is the display ok on an external monitor?
if not, your video card has problems
if that is ok - it can be your LED screen does not get the 12 V for LED backlighting; could be a cable or connector problem
LVL 93

Expert Comment

ID: 39714418
Da chusen  what was the solution?
also - why the B grade?  if i gave the correct answer, you should give an A

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