LED backlight has a dark pattern on bottom edge of the screen?

LED backlight has a dark pattern on bottom edge of the screen? My LED backlight has a weird pattern on the bottom. It seems that every other LED is dim (but not completely off).
Asked by: Guest \| Views: 176

Total answers/comments: 5

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bert [Entry]

"mayer

@mayer

Rep: 670.9k
MacHale Enterprises

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bert [Entry]

"This same problem happened on my Early 2008 MBP, intermittently. Found this post on Apple support that shows how to reset the display to rid the symptom. Seems the fix is only temporary, but can be repeated as often as needed.

http://support.apple.com/kb/TS1258

An in-depth post on Apple's Macbook Pro Community Forum under the heading ""Strange vertical stripes"" suggest it's a known problem which doesn't get resolved with replacing parts."

bert [Entry]

"OMG! This has been plaguing me for weeks! I had my early 2008 trackpad go out and had to have the case replaced to fix it, and since it was returned (done by a Mac repair shop, not Apple) the bottom screen has done this though it never had before. Today it was too visible to ignore and not be depressed. The shop has insisted it was not due to anything they did but could offer no help other than to replace the screen. Restarts and even repairing permissions and clearing caches and resetting power management have not helped. The link to the Shift - Control - Eject was a godsend! It's back to normal!!!

Thank you, Clement!!"

bert [Entry]

"Hello.

My name is German.

Im from Argentina.

I had the same problem, like in pics ""LED BACKLIGHT 1, 2 & 3"".

I followed the instructions at Youtube ""how to replace a MackBook Unibody display"".

See http://www.youtube.com/watch?v=taBKfR40x...

Then I reassemble the machine and ""voila"".

It works properly.

May be a problem whit a conector or something like this.

Try to disasemble and reasemble the data cable of the display before replacing it.

Dont forget to disconect the batt.

Regards."

bert [Entry]

"I can't give you a definite answer, but it seems to me that there'd be no reason for the display data cable to individually control the separate LED strips. I would think it must set the level for the whole backlight, which the driver board controls. Given that the whole strip drops out, the LED driver board seems the more likely culprit of those two.

Does anything different or unusual happen if you change the display brightness when this happens?"