mihael.tomic
Level 1 (4 points)
Mac OS X

Q: Strange lines on screen only in Time Machine

I have some strange vertical and horizontal lines when I enter in Time Machine.

I've checked for errors on the the graphic card but it's working fine.

 

Specs:

macOS Sierra 10.12 (16A320)

iMac (Retina 5K, 27-inch, Late 2015)

 

IMG_1320.jpg

 

 

 

IMG_1319.jpg

iMac with Retina 5K display, macOS Sierra (10.12)

Posted on Oct 19, 2016 11:13 AM

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mihael.tomic

Q: Strange lines on screen only in Time Machine

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  • Helpful answers

  • by chris_g1,

    chris_g1 chris_g1 Oct 20, 2016 8:38 AM in response to mihael.tomic
    Community Specialists
    Oct 20, 2016 8:38 AM in response to mihael.tomic
    Hi! 


    Thanks for posting your concerns in the Apple Communities. If you are seeing some abnormal lines on your display when entering the Time Machine app, try resetting the NVRAM. How to Reset NVRAM on your Mac
     

    What is NVRAM?

    A small amount of your computer’s memory, called “non-volatile random-access memory” or NVRAM, stores certain settings in a location that OS X can access quickly. The settings that are stored in NVRAM depend on the type of Mac you're using, and the types of devices connected to it.

    Information stored in NVRAM can include:

    • Speaker volume
    • Screen resolution
    • Startup disk selection
    • Recent kernel panic information, if any

    If you experience issues related to these features, you might need to reset the NVRAM on your computer. For example, if your Mac starts up from a startup disk other than the one you've specified in Startup Disk preferences, or if a question mark icon appears briefly when your Mac starts up.


    Restart normally after the reset and test the Time machine app. Let us know if it works for you. Have a great day. 

  • by mihael.tomic,

    mihael.tomic mihael.tomic Oct 20, 2016 11:13 AM in response to chris_g1
    Level 1 (4 points)
    Mac OS X
    Oct 20, 2016 11:13 AM in response to chris_g1

    Hi and thanks Chris,

     

    I've reset NVRAM but lines are still visible on Time Machine (only). Strange... I think it's a software issue, not with logic board battery as stated in your link about how to reset NVRAM, but maybe I'm wrong. Everything was fine before upgrade to macOS Sierra.

     

    IMG_8871.jpg

  • by sarah_s1,

    sarah_s1 sarah_s1 Oct 20, 2016 11:35 AM in response to mihael.tomic
    Community Specialists
    Oct 20, 2016 11:35 AM in response to mihael.tomic
    You're welcome! Thanks for trying the reset. If this did not make any positive changes while using the Time Machine app, try changing the color profile using your display settings in your System's preferences. macOS Sierra: Set your display’s color profile


    See if this does the trick. Take care. 

  • by mihael.tomic,

    mihael.tomic mihael.tomic Oct 20, 2016 12:28 PM in response to sarah_s1
    Level 1 (4 points)
    Mac OS X
    Oct 20, 2016 12:28 PM in response to sarah_s1

    Thanks,

    but this also didn't work. But can you write which profile should I use or should I calibrate my current profile?

     

    Screen Shot 2016-10-20 at 21.26.39.png

  • by chris_g1,

    chris_g1 chris_g1 Oct 20, 2016 12:50 PM in response to mihael.tomic
    Community Specialists
    Oct 20, 2016 12:50 PM in response to mihael.tomic
    Great question. Yes, you can calibrate your current profile to see if that resolves it. Try placing a check mark in the box that says "Show profiles for this display only"  You can then select each one and test the Time Machine app to see if the lines go away as well. Please use the links below for assistance. 


    macOS Sierra: Calibrate your display


    macOS Sierra: Set your display’s color profile​

  • by mihael.tomic,

    mihael.tomic mihael.tomic Oct 20, 2016 1:11 PM in response to chris_g1
    Level 1 (4 points)
    Mac OS X
    Oct 20, 2016 1:11 PM in response to chris_g1

    It's still the same. But in ColorSync Utility i have these errors (I don't know of this is related in anyway with topic, but I'll post it here):

     

    Searching for profiles...

    Checking 79 profiles...

    /Library/Application Support/Adobe/Color/Profiles/RedBlueYelllow.icc

       Tag 'pseq': Required tag is not present. Could not be fixed.

    /Library/Application Support/Adobe/Color/Profiles/Smokey.icc

       Tag 'pseq': Required tag is not present. Could not be fixed.

    /Library/Application Support/Adobe/Color/Profiles/TealMagentaGold.icc

       Tag 'pseq': Required tag is not present. Could not be fixed.

    /Library/Application Support/Adobe/Color/Profiles/TotalInkPreview.icc

       Tag 'pseq': Required tag is not present. Could not be fixed.

    Repair done. 0 out of 4 profiles fixed.



  • by Garratt,

    Garratt Garratt Oct 20, 2016 1:58 PM in response to chris_g1
    Level 1 (63 points)
    Mac OS X
    Oct 20, 2016 1:58 PM in response to chris_g1

    chris,

    Could this be the beginning of the graphics card failing? I had an iMac 24", a few lines started, then many lines with an outcome of it not working at all (lines).

    Just a thought.

  • by JayB.,

    JayB. JayB. Oct 20, 2016 1:58 PM in response to mihael.tomic
    Community Specialists
    Oct 20, 2016 1:58 PM in response to mihael.tomic
    I understand. This could be related to the lines, but really can't be sure of it. Very strange that it is only occurring within the Time Machine app. Let's see if this is a system-wide issue, by testing in a new user:

    How to test an issue in another user account on your Mac

    If it happens in a new user then I would recommend reinstalling macOS Sierra to see if that will resolve it. You can reinstall without losing any data on the Mac at all. 


    macOS Sierra: Reinstall macOS

  • by mihael.tomic,

    mihael.tomic mihael.tomic Oct 22, 2016 12:38 AM in response to JayB.
    Level 1 (4 points)
    Mac OS X
    Oct 22, 2016 12:38 AM in response to JayB.

    @JayB - Changing user didn't work. I'll try reinstall, but I don't have the time for this at the moment to do that

     

    @Garrat - it would be a shame if it is a graphic card because it's only a few months old mac.

  • by Garratt,

    Garratt Garratt Oct 22, 2016 1:13 PM in response to mihael.tomic
    Level 1 (63 points)
    Mac OS X
    Oct 22, 2016 1:13 PM in response to mihael.tomic

    I hope its not the graphics card as well. And I hope you find an easy fix.