Uneven backlight on Pre-LED MBP.

I have a pre-LED backlit MBP, I believe I purchased mine about 8 weeks before they came out. My MBP was new at the time I purchased it and was not a refurb. I have noticed when working with two word documents next to each other that the one on the right always appears to be slightly darker than the one on the left. This is causing me eye strain as it always feels slightly out of focus. I have tried switching focus to see if that changes the difference, but I see no change with the one on the right still being slightly darker. I have put a blank background on my desktop, a lighter grey, and notice that the right "half" appears to be slightly darker. It is not a straight down the middle appearance but more a large portion on the right half of the screen. Is there anything I can do to alleviate this problem? I have tried waiting for the display to warm up but this does not seem to help. As far as I can tell it is a backlighting problem, but I'm not completely sure.

Do you feel up to working on it yourself? If so, here is a good site to visit:
http://www.ifixit.com/Guide/
Often if the problem changes with moving the display, the problem is the cable which is routed through the hinge. It may be that a trace has broken, but will still make good contact in some positions.
I actually don't know if ifixit offers the cable as a separate part, but you should be able to see a picture of it. If you can extract the cable and find the break, you may be able to solder it back together and cover the repair with shrink tubing. You can also look on the PowerBook Medic site for stuff like this.
Reseating the cable means just unplugging it from the logic board and plugging it back in again. It's kind of the same thing you do when you are reseating RAM. If there is any corrosion which is making for a poor contact, unplugging the cable and then plugging it back in will allow some physical scraping which can result in a better contact.
The cable which goes from the main body of the computer to the display flexes every time the lid is opened and shut. So it is possible for the traces to work harden and break over time, which will then affect the display, as part or all of it may no longer be getting a good signal. If the position of the display makes a real difference, then I would suspect the cable.
Good luck!

Similar Messages

Uneven backlight on the lower edge

I'm a proud new owner of the 2013 MBA and I'm simply loving the maching but one observation added a bit of disappointment to the overall experience. Namely, on the brighter images, I see a slight darker line along the bottom of the screen. It's not a perfect line, rather a bumpy one - it's really small and mostly hard to notice (and definitely not noticable at all if you're not on a white or similar background) but it's there. Looks like an uneven backlight to me. Is it some well-known issue with the MBA displays just like the blue-ish tint happened with retinas on iPad 4's or it should be absolutely perfectly white from end to end and I should go get a replacement?

Tigro!
definitely not noticable at all UNLESS youre on a white or similar background
Its not the LCD display, but your edge lighting on the LEDs behind the LCD may have a factory defect as per your indications.
That sort of "bumpy" look you mention would be the spaced LED back lighting.
Make appt. and call Apple about possible replacement of your macbook Air.
Peace

Can I Get a Full Refund for Uneven Backlighting on MPB after 50 weeks?

I bought a Macbook Pro C2D 17" exactly 50 weeks ago from one of the mac re-sellers that are in towns like Bristol and Swindon in the UK that don't have proper mac's own shops.
I've developed some really bad uneven backlighting on my monitor which is really noticeable when I put a mid tone colour to fill the screen (and even more noticeable when I look at it from a slight angle) and also a light coloured area at the bottom of my screen with is noticeable when he screen is black.
I also have the slight 'grainy' effect that people have been making a lot of fuss about ever since these new macbook pros were brought out, It's a glossy screen also.
A few days ago I passed round the shop and asked if I could qualify for my computer to be replaced with one of the (new) new ones, I'd like this since I find the fans go on with I use second life (and stops and starts a lot) and photoshop on full blast with various other software. Also could do with the extra RAM and resolution.
The salesman at the mac re-seller shop said that It would take about 10 days for my computer to be fixed, now I'm a graphic designer and depend on the computer for my income so that's not an option.
What I'm wondering, and the reason I'm writing this post...I heard somewhere that under UK consumer law that if a product fails to live up to what it's promised to be or is faulty, the consumer is entitled to the choice of a repair, replacement or refund. Is this true and can I qualify for it? The mac re-seller shop is only giving me the option to replace the screen it seems for a lengthy delay instead of giving me other options, what I'd like is the computer to be replaced with the new machine or mac to refund me, so I can give it to apple again by buying the (new) new macbook pro that's just come out.
Cheers,
Any advice much appreciated.
Message was edited by: Scottishengineer
Message was edited by: Scottishengineer
Message was edited by: Scottishengineer

Good Afternoon,
I can't speak for British Law, however, you should still be covered by the Apple 1 Year Limited Warranty. If you have a verified problem with your computer you should be able to send it in for repair, however, Apple is not required to replace the machine so long as they are making an attempt to make your machine operate normally.
Normal repair time will range from 10-30 business days on most issues when the machine is sent in for repair and, unfortunately, Apple is not responsible for any lost productivity time you will encounter during that time.
You may wish to contact Apple Support or Customer Care for more details.
Hope this helps! 
David

Does your iPhone 4/4S have uneven backlighting?

Have you noticed the slight difference in brightness between the top half and bottom half of your 4/4S screens? Of the multiple exampes I have looked at half seem to have uneven backlighting where the top section of the screen is darker. The rest had yellowish screens.
You can see it by going into Settings>General and turning your device to landscape mode. You can also check using any of the various flashlight apps but I find the dark text in Settings helps me to see it more clearly.

100% positively sure

4S screen - uneven backlighting.

Hey all,
I got a replacement iPhone 4S to replace my 4S with the yellow screen, but now I seem to have run into another Apple QC issue. I have an uneven backlight, it's pretty noticible (you can see it in the vid link below.) It presents itself as a bright white spot in the middle of my screen extending from the right side of the phone.
http://www.youtube.com/watch?v=je3Ce-Uc6ag
Not sure if I should return it, the new screen is pretty neutral and I don't want another yellow one!

Just want to chime in with my 2 cents. Im now on my 3rd 4S after having a yellow screen and a rattling vibrator now I have had the 3rd one for about 2.5 months and it has developed a yellow/dimmer top 1/3 of the screen and there is a whiter/lighter "patch" in the middle of the screen with a small whiter dot near it. There is also some backlight bleed on the top right hand corner running down about 1/3 of the right hand side. Definitely going to take it back at the weekend and see if i can get a 4th that is ok! I'll keep you updated.

Uneven Backlight Fixes Itself?

Okay, when I first fired up my MBP the screen looked horrendously lumpy! The backlight was incredibly uneven, with shadows all over the place.
After three days of using it, the lumpiness has all but disappeared, and the screen seems fairly even bar a slightly darker strip about third of the way up the screen.
I still have a bright 1/2inch strip at the bottom (which I believe is light spillage from the backlight tube), which is a bit annoying but not worth sending the machine back for in itself.
So (not that I'm complaining) can anyone explain why the uneveness of the backlight would improve?

I think the best way to see where you get light leakage is to take pictures of it with your digital camera, or look at the view area of the camera. It sure reveals a lot spots and leaks.
But that is another story. I think its not so much that it improves, I think its your eyes playing tricks on you. Maybe there is improvement but, for the most part its just your eyes. Also hold the scree up to a mirror and you'll be able to see more lighting problems. It's really weird how when you look at it from a different perspective it looks different.
I don't know thats just my 2 cents. I have gone through swapping 10 MBP and I've settled with the most recent one. Its not perfect by any means. The battery feels loose but I'm willing to forgo that for a decent screen. Which this one is quite good compared to some other ones I had.

Uneven backlighting and light leakage

OK, just booted up my new MBP and so far I'm pretty disappointed with the display. The backlighting is uneven and there is significant light leakage around the bezel. Furthermore, it doesn't seem to be even as bright as my 1GHz Ti book. I'm thinking that one of the lights in the MBP may be out.
Anybody else having similar issues? If most people have these great looking displays then I'm going to have to call Applecare and get it fixed.

Well, one thing is that it was pretty cold when it arrived. Having used it for a bit now, it looks better. Still not as awesome as I was expecting (the rest of the machine is absolutely great though). Unfortunately, I live no where near an Apple store, so I'm trying to decide if it is in fact flawed before I have to call Applecare and ship it back.
Thanks for the input.

Uneven backlight...heat issue...just 1 month old

Ok...this is the 4th iPhone 3GS the i replaced...ive been happy with the last replacement fo about a month now...just recently...i noticed it starts getting hotter when i use it...almost like touching a coffee mug...then the backlights brightness became uneven...bright on the bottom less bright on the top...this is the fifth time im taking this back to the apple store...

Hi
I don't know if the Iphone uses LED or Cold cathode backlighting but I presume its cold cathode if so if this is at fault there's no reason it might go faulty and produce more heat than normal and in turn heat the glass!
My iphone has never gotten anything over than luke warm so I expect this is a major hardware fault ether way the phone should not be doing this and I would contact apple for a replacement!
Other than that you could try a restore and start with a new phone but i'm 100% sure its hardware by what you describe!
Hope that helps!

Uneven backlight on LCD Screen

Dear Folks:
Does anyone know if the new CD2 Macbook Pro addresses the uneven contrast problems with the existing machines?
Raoul

Tigro!
definitely not noticable at all UNLESS youre on a white or similar background
Its not the LCD display, but your edge lighting on the LEDs behind the LCD may have a factory defect as per your indications.
That sort of "bumpy" look you mention would be the spaced LED back lighting.
Make appt. and call Apple about possible replacement of your macbook Air.
Peace

Uneven backlight is "normal" on retina MacBook Pro?

I bought my 13'' Haswell retina MacBook Pro days ago, I've experienced the unresponsive trackpad issue and I'm happy to see it's already resolved. But now I've encountered a new issue, and it's about the display.
As the picture above shows, in low ambient lightning coditons, I can clearly see the brightness is uneven, the top left corner and the left bottom of the screen is brighter. The center of the screen seems brighter, too. But please ignore it because I suppose it's because of my poor phone camera quality, I don't see any significant brightness with my eyes.
I was considering replace it at first, but later I called Apple, the advisor told me it's "normal"!!! Actually, he said according to my description, my symptom is not very profound, of course I can get a replacement if I insist, but he really can't promise I'll get a better one since it's a normal issue on IPS displays...
To my knowledge, among all the Macs, only iMac and retina Macbook Pros use the IPS technology. I agree that my sympton is not that profound. The first time I noticed it is when I try to watch a movie in a dark night. In normal use, I can't say I have much bother. Except when I let the browser enter the full screen mode, since most sites use a white background, then I can see a small area of the left bottom of the screen is a little whiter, which is not profound but kind of distracting though.
I've asked one friend of mine who used the 2012 rMBP and he said he have the same condition too... So now I really wonder whether it's a common issue as the advisor said. Please download this full black image, open it and go to the full screen (or presentation) mode. Turn off your light and increase the brightness of your screen if it's set too low. Then check whether you have the same issue with me. Thanks a lot!

Yes, I also have the same problem on my late 2013 rMBP. I've returned the model 4 times already due to various defects. Can anyone see the uneven white balance from left to right screen where left side looks more yellowish?Very disappointed at the quality of the screen. Looks like this is "normal." Should have purchased the New Samsung ATIV 9 instead.

Keyboard backlight not working on MBP 13in Mid-2010

The backlight on my keyboard is no longer working. When my backlight 1st stopped working it allowed me to toggle the brightness level to no results (I even tired lab kit.) After I resetmy PRAM and SMC I couldn't even try to toggle the brightness. The illumination settings in System Preferences disappeared as well. Is there anyway to fix this without having to bring my computer into the Apple Store? I use this machine for both work and school and cannot be without it for a few days. I am currently running Lion.

Are you under warranty? If so, call Apple and report the problem and get a case number. If your warranty is about to run out, it is important to get a case number to document that the problem first occurred under warranty so that Apple can eventually fix it under warranty.
You have already tried the usual cures--resetting the SMC and checking your settings for the keyboard. If LabTick also does not work, then you likely have a hardware problem of some sort.
It might be worth a trip to the genius bar to have them take a look at it and maybe run their hardware test, just to get a diagnosis and repair estimate. You can also ask how long the repair will take and see if there is any possibility of having it repaired while you wait. Once you know what's wrong and what it might take to fix it, you can delay the actual repair until a time that is more convenient to you.
Right now there's no way to tell what's wrong--it may even be something as simple as a cable that needs to be reseated. If so, it should not take long to fix.
Good luck!

Uneven backlight/yellowish tint

I own a 15 inch retina macbook pro (mid 2014 model) since 3 weeks.
After a few days, I noticed that the right part of my screen is 'darker' than the left part. Besides, it is also clearly more yellowish.
I don't know what to do now. I already read a lot of discussions where people stated that they had to return their macbook 4 times or more before the display problems were solved (there are even people out there whose problems never got fixed properly). A good friend of mine had to return his retina macbook (late 2013 version) for exactly the same display problem as I have. He has had 5 (!!!) replacement machines (totally new MacBooks, to be clear) and each and every time there was something wrong with the display. Either it was way to yellowish (which cannot be resolved by calibrating), or it was uneven backlit.
I have a combination of the two problems mentioned above and I'm really afraid it won't be fixed properly. This is a 2500 dollar machine, and yet many people are disappointed about its biggest selling point: the supposedly phenomenal screen.
Can anyone else relate to this problem? Someone who has experience with these problems?

Hi there Valentijn,
You may find the troubleshooting steps in the article below helpful.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
-Griff W.

Uneven backlight

Became the proud owner of Playbook)
During the operation of said non-uniform illumination in the bottom corner -
as rasseivayuschegosyaoreola, brighter toward the edge.
Noticeable on a black background - the lights brighter, more noticeable.
The brightness of the total black background somewhere 3-10%.
A bit annoying when watching movies with dark scenes, the rest of the timenot noticeable
if you do not look closely.
I know that this problem is peculiar, and other tablets, such as iPad.
But it is not clear, it is generally a warranty case?
How are you?
Thanks in advance.

Hey Dataq,
Welcome to the BlackBerry Support Community Forums.
This seems to be a hardware issue, We would suggest contacting your point of sale regrading this.
Playbook Warranty information: http://us.blackberry.com/legal/playbook/limited-warranty.jsp
Thank you.
-HB
Come follow your BlackBerry Technical Team on twitter! @BlackBerryHelp
Be sure to click Kudos! for those who have helped you.Click Solution? for posts that have solved your issue(s)!

IMac 27" uneven backlight?

This is my first iMac on 1 day old and I'm noticing on darker backgrounds that the bottom 3 inches of the screen is slightly darker than the rest, is this typical? I have no dead or stuck pixels and not sure if this is worth a return if it's normal. I think I have 14 days to decide.

I'm noticing on darker backgrounds that the bottom 3 inches of the screen is slightly darker than the rest, is this typical?
No. I would take it in for diagnosis and service under the warranty.
Barry

Macbook Pro Uneven display backlight

Hi
I would like to know if uneven backlight on my macbook pro is covered by warranty
it was hard to get a good picture but,
http://the.cave.in.googlepages.com/uneven_backlight.jpg
sometimes its even worese
the display also flickers sometimes very lighyly (at 50hz etc.)
also
is there a good reason that while probing apples site
i could not find a single support e-mail address ?
cheers.
Brazy
.est

If the screen lighting is as bad as the photo seems to demonstrate, then yes, it's definitely a problem that would be covered by warranty. The screen should never actually flicker, though, since an LCD is refreshing pixel-by-pixel at 60hz, perhaps your brightness settings keep changing? If not, then it could even be the inverter (if you're using one of the CFL (pre-Santa Rosa) models). Either way, I'd try to get over to your nearest Apple Store when you can.

Uneven backlight on Pre-LED MBP.

Similar Messages

Maybe you are looking for