iMac 27inch Display - Dark on left side :(

I had the same thing happen to me. At first the monitor would just turn off as if going to sleep. Now the left side is just dimmer. Seems like defect of some sort, imho.

This is an known problem for this iMac model (Mid 2011). Its not the inverterboard/backlight, its the display itself... im pretty sure that it happens because there is the power supply behind the left side of the display, and it is getting to hot and damages the display... I have the same iMac but havent had this issue (yet) so i will have to buy the Apple Protection Plan when i still have Warranty cuz it will very probably happen!

Update: And yes it is an Hardware problem which cant be resolved through Software Update.

I purchased my 27" iMac dec 2011 and this week it has started dimming on the left side, really noticed it when I changed background to white. It is currently at an area Apple reseller getting fixed. It will be interesting to find out what the issue is. They said they may have it for at least a week. Sounds like this is a common issue, will definatley be getting Apple care when my current warranty runs out, if not before.

Once it is fixed does anyone know if it will happen again?

Urge you to look at this question for a solution,

https://discussions.apple.com/thread/3081411?start=30&tstart=0

note the comment by nicholasfromconfolens page 3, and also images etc. from myself

Hope it helps someone! Saved me a fortune in my case.

Same problem!

iMac 27" mid2011

3.1 GHz Intel Core i5

I took my 2011 Imac i5 27" in for repairs at a local Mac reseller that does warranty work. They replaced the panel and all is fine for now, they said they replaced the panel and two other parts, the sales person did not know what those parts where and they where not on the invoice. Was in the shop for about 9 days.

Same problem here too! On an imac 27'' mid 2009... They (in Apple) are just rediculus... They' ll just change my monitor for 2nd time for free! The first time it was for the back dot,holes, the **** how they call them... (They had better gave me a new one, it would cost them less!!!😝

I've got the same problem. I bought iMac 27 (mid 2010) one and a half years ago and the warranty already ended.

But.. It is the first case when to the monitor there is a similar! Why the company apple not to recognize obvious marriage of the displays and not to change them free of charge????

I don't know any monitor with which after a year of use there was the same problem... Asus/Samsung/LG etc, any of them.

I won't buy any more imac, instead I will buy separately the monitor and the PC, it will save up my nerves and money.

Same here...

i7 3,4 Ghz iMac, bought 17.5.2011, flicker issue and today i see the darker left side...

what a shame for apple...

mintracer - I had the exact computer you do, purchased the same time and had the flicker issue with a darker left side of the screen. I spoke to Apple and they replaced the entire computer for me. Be proactive, it helps!

Tja... The AppleCare Man on the Phone didint want to discuss... its not a known problem... so nothing will happen accept repair...

Maybe you have a CaseNumber for me?

They don`t know that the i7 imac have these problems... Its a guess of me... he said...

Its a shame to by Apple... I wanted to buy a iPad this week... You know what? I wont...

i have the same problem with my imac 27" 2.7gh i5 yesterday ,half of the imac screen is dark so i call applecare and the say that take it to the apple store and they can fix it for u so i take it to the apple store and they says that this is heppnig to most all imac 27" models it's the screen so they going to chang my screen free of charg beacouse my imac is still in the warranty and i also have applecare just incase but if u don't have warranty apple will charge u all most $$$$ 550.00 for to get it fixed so if your imac is still in warranty buy applecare just incase

........

Same issue here. Purchased in 2010. Started to flicker and now the left side is very dark. It got very dark today. Apple will not acknowledge that it is a problem 😟

That is tru when I call apple befor I have this problem the didt say any thing abot manufacturing diffract but after a month my screen went dark on left side so I call AppleCare and the told me that this a manufacturing diffract so the told me take to apple store and the can fix this so, the fixed it about week ago now for free , now iMac have new screen and working fine so if your iMac is still under warranty plz take too the apple store and the will fix this issue ....