josefinemeijer
Level 1 (0 points)

Q: Imac shows super weird lines on screen during start up and then freezes at blue screen (WITH PHOTO)

My Imac froze earlier today as I was dragging an image from safari into indesig and when it froze the weirdest pattern overlaid the screen. It looked just like the opacity pattern from photoshop with grey and white squares. I turned the computer off using the power button and unplugged everything.


Now when I try to start it these weird lines appear on my start up screen (see link)...


http://meijerladdaruppgrejer.wordpress.com/2012/07/24/oops/


as you can see the apple and the wheel appears as normal...

 

 

... then it moves to a normal looking white screen (perhaps a bit greener than usual) and around 30 seconds later freezes at the blue screen.

 

 

I've tried the cmd + alt + p + r several times but it won't help.

 

If i press alt during start up I can see and choose my hard drive but just end up at the blue screen again.

 

Can I try starting it up in safe mode or something?

 

 

 

Thanks! Any input is welcome.

iMac, Mac OS X (10.6.3)

Posted on Jul 24, 2012 1:45 PM

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josefinemeijer

Q: Imac shows super weird lines on screen during start up and then freezes at blue screen (WITH PHOTO)

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  • Helpful answers

  • by josefinemeijer,

    josefinemeijer josefinemeijer Jul 24, 2012 1:53 PM in response to josefinemeijer
    Level 1 (0 points)
    Jul 24, 2012 1:53 PM in response to josefinemeijer

    Is this the same problem? Verical Lines" seems a bit diffuse. I've seached for a similar question and found a lot of other types of lines and stripes.

     

    Could this be a solution?

     

    http://support.apple.com/kb/TS3824?viewlocale=en_US&locale=en_US

     


    If so, how do I install the update if I can't get passed the blue screen? Can I start my Imac in safe mode? How?

     

     

     

    iMac (Mid 2011): Unresponsive white screen on startup or vertical lines on screen

    Symptoms

    In certain circumstances, your iMac (Mid 2011) may become unresponsive on startup, with a white or gray background on the display. You may also notice vertical lines on the display while using your iMac.

    Resolution

    Install the iMac Graphics Firmware Update 2.0 if your computer exhibits these issues. To install the update, chooseSoftware Update from the Apple () menu and follow the onscreen instructions. 

    Important: Do not interrupt the power to the computer while the update is installing. After the update is finished installing, you will need to restart your iMac.

     

  • by josefinemeijer,

    josefinemeijer josefinemeijer Jul 25, 2012 3:50 AM in response to josefinemeijer
    Level 1 (0 points)
    Jul 25, 2012 3:50 AM in response to josefinemeijer

    I'm taking it down to my local Mac Support store. I'll let you know what they say...

  • by B-j Backlund,

    B-j Backlund B-j Backlund Oct 3, 2012 10:29 AM in response to josefinemeijer
    Level 1 (0 points)
    Oct 3, 2012 10:29 AM in response to josefinemeijer

    Any updates on this problem? I've had very similar issues with my iMac11,1 and I've been wondering whether I would have to take it to an AASP. It starts up in safe mode, albeit with five large vertical stripes.

  • by josefinemeijer,

    josefinemeijer josefinemeijer Oct 3, 2012 11:41 AM in response to B-j Backlund
    Level 1 (0 points)
    Oct 3, 2012 11:41 AM in response to B-j Backlund

    my graphics card was busted. i've replaced it and everything works perfectly again. it was a rather expensive story but i'm just happy my hard drive was all right.

     

    summary: don't play civilization for days without letting your mac rest every once in a while, don't keep to many tabs in safari and drag and drop large files while in photoshop and indesign.

     



  • by Ironicstar,

    Ironicstar Ironicstar Dec 30, 2012 10:27 AM in response to josefinemeijer
    Level 1 (8 points)
    Desktops
    Dec 30, 2012 10:27 AM in response to josefinemeijer

    I've been experiencing those lines too, unfortuantely for me I'm in a Creative Digital Media program - so dropping those large files is a part of my every day life, like it or not.

     

     

     

    Fortunately though, the computer still "belongs" to my school and they'll fix it free.

  • by cavenewt,

    cavenewt cavenewt Nov 13, 2013 7:36 AM in response to josefinemeijer
    Level 2 (349 points)
    Nov 13, 2013 7:36 AM in response to josefinemeijer

    I really don't think dragging and dropping large files can damage your graphics card. Heat, maybe. But even lengthy sessions of gameplaying shouldn't do that — after all, that's what the fan is for.