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Q: Greyish Smudge marks behind the glass screen.

I have a 21.5 iMac bought in November 2009.

There appears to be numerous greyish smudge marks behind the glass screen on the top left hand corner.

It was not apparent to me at first, but after I started using OMMWriter it became easily visible. I also tried placing a neutral white background like TextEdit and it was easily visible even then.

I have cleaned the screen on numerous occasions and it has not had any effect.

What should I do?

These spots are quite disturbing.

iMac 21.5, November 2009, Mac OS X (10.6.2)

Posted on Jan 15, 2010 10:55 AM

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Q: Greyish Smudge marks behind the glass screen.

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  • by rockjano3,

    rockjano3 rockjano3 Dec 25, 2013 2:17 PM in response to bilbao58
    Level 1 (0 points)
    Dec 25, 2013 2:17 PM in response to bilbao58

    Man you are a lucky american... you don't how lucky you are all over there ... :-)

     

    There are less fortunate places on earth :-)

     

    I cannot do anything just accept the fact that my monitor looks ugly :-(

  • by bilbao58,

    bilbao58 bilbao58 Dec 25, 2013 2:21 PM in response to rockjano3
    Level 1 (0 points)
    Dec 25, 2013 2:21 PM in response to rockjano3

    Well, if it helps any, my monitor actually started looking better after I installed the fan-control app and before I took it in for repair. I had streaks going up the right side of the screen that disappeared after a short while. I'm glad I photographed the problem when it was bad and printed up the photos beforee I went to the Genius Bar. Maybe yours will start looking a bit better.

  • by rockjano3,

    rockjano3 rockjano3 Dec 25, 2013 2:27 PM in response to bilbao58
    Level 1 (0 points)
    Dec 25, 2013 2:27 PM in response to bilbao58

    Hmmmm... thanks that sounds promising...

     

    Which is that fan controlling soft???

     

    I also noticed that when the mac is cool that the problems disappear and as it gets warmer it gets stronger.

     

    Probably it is still some LCD problem but if that helps....???

     

    I also took out the DVD drive from behind the LCD (where the problem is) and put an SSD in the place that also could be problematic.

     

    Thanks

    rockjano

  • by bilbao58,

    bilbao58 bilbao58 Dec 25, 2013 2:29 PM in response to rockjano3
    Level 1 (0 points)
    Dec 25, 2013 2:29 PM in response to rockjano3

    Temperature Gauge Pro. It cost me $10 US.

  • by rockjano3,

    rockjano3 rockjano3 Dec 25, 2013 2:32 PM in response to bilbao58
    Level 1 (0 points)
    Dec 25, 2013 2:32 PM in response to bilbao58

    Yeah thanks I just found it..

     

    Looks a bit complex but I will try it...

     

    Thanks for the suggestion...

     

     

    rockjano

  • by bilbao58,

    bilbao58 bilbao58 Dec 25, 2013 3:00 PM in response to rockjano3
    Level 1 (0 points)
    Dec 25, 2013 3:00 PM in response to rockjano3

    I set it to manual control and keep the fans running just a little faster than normal at all times. The increase in noise is minimal. Then I up the fan speeds even more when needed. I don't use their automatic setting. Maximum fan speed is just overkill and way too noisy.

  • by rockjano3,

    rockjano3 rockjano3 Dec 25, 2013 3:07 PM in response to bilbao58
    Level 1 (0 points)
    Dec 25, 2013 3:07 PM in response to bilbao58

    Thanks a lot

     

    I will try and write back

     

    Thanks

  • by bilbao58,

    bilbao58 bilbao58 Dec 25, 2013 3:11 PM in response to rockjano3
    Level 1 (0 points)
    Dec 25, 2013 3:11 PM in response to rockjano3

    Hope it helps. It's frustrating knowing that Apple was aware of the problem yet still sold model as-is without at least programming the fan speeds faster to reduce some of the heat.

  • by m.bradley1234,

    m.bradley1234 m.bradley1234 Dec 25, 2013 3:17 PM in response to bilbao58
    Level 1 (10 points)
    Dec 25, 2013 3:17 PM in response to bilbao58

    As the grim reaper of the community I would like to say this discussion has surpassed any that I can recall the iMac issue is based on your LCD type point blank period there's not a reliable workout around other than replacement relying on a program install fix will not work despite and yes it is a temperature issue the SAMSUNG LCD circa aren't effect quite like the LG LCD circa regardless it was a mixture of a bad build and a company that even though I know I'm in a room full of die hard Macintosh users as I am included I'm sure clearly knows and knew of this issue at hand but had to push the envelope probably around its discovery with this being said I would sale your machine even though I know this sound outrageous as I did because you'll continue to encounter this problem

    Not to mention in my case the heat problem will also eventually over power your BT Module as well as other internal components but if this isn't what you want to hear or can't visual doing such as continue to discuss this problem and I'll bet 10/1 this will continue until infinity and beyond

    P.S.  MERRY XMAS TO EVERYONE ABOUT THE COMMUNITY SO LONG  until next time

  • by rockjano3,

    rockjano3 rockjano3 Dec 25, 2013 3:19 PM in response to bilbao58
    Level 1 (0 points)
    Dec 25, 2013 3:19 PM in response to bilbao58

    Makes me mad!!!!

     

    Otherwise it is such a great machine. Especially that I replaced the otherwise very inreliable DVD drive with SSD, it is like a new computer. It is just soooo much fast than before. Even when I open file from the old HDD it is a LOT faster.

     

    All the DVD drives die sooner or later I think they are just not designed to work in vertical position. (no other computer uses DVD in vertical position)

     

    I use an LG BluRay writer for 3 years and it is just great (faster-better)

     

    rockjano

  • by m.bradley1234,

    m.bradley1234 m.bradley1234 Dec 25, 2013 3:20 PM in response to m.bradley1234
    Level 1 (10 points)
    Dec 25, 2013 3:20 PM in response to m.bradley1234

    Wow before I could finish my post I check my email to see that Bilbao 58 is quite familiar of which I speak brilliant

  • by rockjano3,

    rockjano3 rockjano3 Dec 25, 2013 3:23 PM in response to m.bradley1234
    Level 1 (0 points)
    Dec 25, 2013 3:23 PM in response to m.bradley1234

    This post was a bit difficult to understand but still Merry Xmas to everyone... :-)

  • by m.bradley1234,

    m.bradley1234 m.bradley1234 Dec 25, 2013 3:33 PM in response to rockjano3
    Level 1 (10 points)
    Dec 25, 2013 3:33 PM in response to rockjano3

    Haha I think so much I believe my brain has created its own OS but hey it's hard being an evil genius @ the Genius Bar needs to display a liquor license cause they seem to be always be intoxicated full of misguiding,and unreliable advice. I have a secret / come closer, closer, closer always call corporate directly to discuss your problem for apple care for whatever reason in store personal really aren't geniuses but actually college kids working for the summer / then he died end if movie roll the credits

  • by rockjano3,

    rockjano3 rockjano3 Dec 25, 2013 3:52 PM in response to m.bradley1234
    Level 1 (0 points)
    Dec 25, 2013 3:52 PM in response to m.bradley1234

    I don't know what poison do you take but I want some :-)))))

  • by m.bradley1234,

    m.bradley1234 m.bradley1234 Dec 25, 2013 3:54 PM in response to rockjano3
    Level 1 (10 points)
    Dec 25, 2013 3:54 PM in response to rockjano3

    I'll email you a cup haha

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