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  1. #1


    Member Since
    Oct 30, 2010
    Location
    Blackburn, Lancs, North West England
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    321
    Specs:
    Mac Mini Aluminium running at 2.4 GHz.
    Houston, we have a problem.
    Hi guys,
    I am experiencing a problem with my G4 Mac Mini and I don't know where I am supposed to ask for help with it so I tossed a coin and you guys won.
    This problem happens no matter what is on the screen. It can be a web page or the desktop or any of the Mac applications. It just started doing it half an hour ago. There are no external things plugged into the Mini and it has been restarted.

    So what's the problem?

    Maybe once every 3 minutes or so the screen goes blue. It is the same colour blue that you get as the Mac fires up. Then, after maybe 3 seconds or so, the screen changes back to how it was before it went Blue.

    Any ideas?
    Cheers,
    5tevie

  2. #2

    toMACsh's Avatar
    Member Since
    Jul 30, 2009
    Location
    Wisconsin
    Posts
    6,163
    Specs:
    Mac Mini (Late 2014) 2.6GHz Intel Core i5 Memory: 8GB 1600MHz DDR3
    How old is the monitor?

    Friendly advice: put a description of your question/issue in your thread title. It's more likely to draw people in with an interest in the topic, and thus perhaps some knowledge to share. Some will just skip over them, as I do when I'm pressed for time.

  3. #3


    Member Since
    Oct 30, 2010
    Location
    Blackburn, Lancs, North West England
    Posts
    321
    Specs:
    Mac Mini Aluminium running at 2.4 GHz.
    Hi there and thanks for the advice. I shall try to do that in future.

    As for the age of the monitor, well, it isn't a monitor as such. It's a 52" plasma TV which is about 4 months old. This problem only shows itself when the computer side is running and not when the TV programmes are running.

  4. #4


    Member Since
    Jan 22, 2010
    Location
    Victoria, BC
    Posts
    20,911
    Specs:
    Mid-2012 MBP (16GB, 1TB HD), Monoprice 24-inch second monitor, iPhone 5s 32GB, iPad Air 2 64GB
    Sounds like a syncing issue. I'd start by investigating the quality of the connection, and the connector.

  5. #5

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
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    22,089
    Specs:
    Imac 27" Retina 5K, 512GB flash memory, 3.3GHz, 16GB memory, macOS Sierra beta.
    And if you are using a mini VGA connector, start there.

    http://forums.macrumors.com/showthread.php?t=220394

  6. #6


    Member Since
    Oct 30, 2010
    Location
    Blackburn, Lancs, North West England
    Posts
    321
    Specs:
    Mac Mini Aluminium running at 2.4 GHz.
    I get a Blue screen every few minutes.
    Hi guys,
    I tried to explain this one earlier but I was told that my title didn't really give a clue to the problem so here it is again.
    I have a G4 Mac Mini hooked up to a 52" Plasma screen which has no problems showing excellent pictures via the Sky box which is also wired to the Plasma TV.
    The cable from the TV to the Mac Mini is the same cable that ran from the same TV to a desktop Windows PC for two years with not a hint of a problem.
    However, that cable does not plug directly into the back of the Mac Mini. It plugs into a little adapter jobbie about 2 inches square which, in turn, is plugged into the Mac Mini.
    OK, that basically explains the system so here comes the problem .....

    I keep getting a blue screen appearing on the TV that covers the whole screen. It is the same pale blue colour as this box that I am typing into right now (just in case the colour of the screen makes a difference)
    This blue screen stays for anything from 3 seconds to 7 seconds and then it just goes away leaving the exact screen that I was on before it appeared. I have found that if I am typing when the blue screen appears my words appear when the screen goes back to normal. I found that out once when I was looking at the keyboard rather than the screen and didn't realise it had turned blue until I finished typing.
    This blue screen appears at random times. Sometimes within seconds of starting the machine and sometimes it will stay a Blue screen free zone for 20 minutes before it starts. At other times it will be on-off-on-off for a minute and at other times it will do one blue screen and then be normal for half an hour.
    My pet theory is that the little jobbie between the video cable and the Mac Mini is a low quality one. If you agree, could somebody please point me to an eBay auction for a GOOD quality one and not just a low quality one with an inflated price tag. I'm new at this stuff so I wouldn't know the difference myself.
    Thanks very much.
    Stevie

  7. #7

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
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    26,477
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    What you're describing in my experience is most often the cabling. However, it could also be the video card becoming flaky.

    If it were me, I'd probably be looking to replace both the cable and the adapter jobbie and keep my fingers crossed that's the problem.

    You haven't given us any clue what type of cable you're using to connect to the TV, so it makes it a little rough to make any recommendation though.

    I'll go ahead and make a guess you're using either a HDMI or VGA cable.
    Sorry, but I don't do ebay for anything like this.
    Here in the US, I use monoprice and Amazon.
    There in the UK, I'd probably use Amazon only because I don't know if ya'll have a company like monoprice.

    Here's a DVI to HDMI for 4.99 and free super saver shipping. They've got two tons of them if you don't want that one.

    Here's a whole slew of DVI to VGA adapter(s) and cable(s) starting at < 1.00
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  8. #8


    Member Since
    Oct 30, 2010
    Location
    Blackburn, Lancs, North West England
    Posts
    321
    Specs:
    Mac Mini Aluminium running at 2.4 GHz.
    Quote Originally Posted by bobtomay View Post
    You haven't given us any clue what type of cable you're using to connect to the TV, so it makes it a little rough to make any recommendation though.
    I tried to. Honest injun, I did.
    I said that it was the same cable that had connected my Windows PC to the screen. I know I didn't tell you the exact techie details of the cable but that's because I'm a complete thicko who just doesn't know the correct terminology. All I can say is take a look at the cable that runs between a Windows computer and a standard monitor. It is usually the lead that has lots of blue inside the plugs on the ends of the lead.

    Anyway, I bought myself a HDMI to DVI lead(or is it the other way around?) so when it arrives chez moi we'll see what happens.

  9. #9

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
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    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    Quote Originally Posted by 5tevie View Post
    ...
    All I can say is take a look at the cable that runs between a Windows computer and a standard monitor. ...
    That doesn't help whatsoever. I have used at least 5 diiferent cables for attaching my Windows machines to monitors / TVs. Three of them are still in common use today.

    The blue gives a good hint, but I have not used a VGA cable to connect any of my computers in probably 10 years.

    You should check here in post #4 and you should be able to figure out what connections you're using.

    If you went with the DVI to HDMI cable, you'll put your existing adapter and cable in the cable drawer and you'll be attaching it to one of the HDMI ports instead of the PC port on the TV.

    You may want to read post #1 &/or #3 in that link after you get the cable if you can't figure out how to get the sound on your TV with it.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  10. #10

    schweb's Avatar
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    Oct 27, 2002
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    MacBook Pro | LED Cinema Display | iPhone 4 | iPad 2
    Merged threads.
    schweb | community leader
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  11. #11

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
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    28,930
    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPad Air, iPhone 3GS
    Is that 2" square thing as you call it a the DVI to VGA adapter that apple ships with the Mini? If so it should have 2 recessed Thumb nuts to unscrew it from the mini.

    If so, I had one older 1.25 G4 mini where the pins got dirty and the video to my TV would cut off and back on and the TV would display a blue screen. Cleaning the pins and the jack with electronic cleaner took care of it. Not sure if that is your issue, but worth a try.

    Try when it turns blue jiggling the adapter up and down a bit and see if the blue screen comes and goes. Can't hurt to try.

  12. #12


    Member Since
    Oct 30, 2010
    Location
    Blackburn, Lancs, North West England
    Posts
    321
    Specs:
    Mac Mini Aluminium running at 2.4 GHz.
    Thanks for the link, bob. I'll save that at read up when the cable gets here.

    Thanks also to dtravis. I'll try that. It certainly won't do any harm although now that I have threatened it by buying a new lead the incidences of the blue screen have virtually stopped today.
    Oh, and Yes, that 2" thing is the part that came with the Mac Mini to connect my old VGA cable to the port on the back of the Mini and Yes, it has two half submerged thumb wheels.
    Thanks for all the help and suggestions.
    5teve

  13. #13


    Member Since
    Oct 30, 2010
    Location
    Blackburn, Lancs, North West England
    Posts
    321
    Specs:
    Mac Mini Aluminium running at 2.4 GHz.
    Hi again,
    The DVD to HDMI lead arrived today and I just found time to fit it.
    It all seemed to go well except that I can't seem to find a way to make the Firefox Screen fit the TV screen properly. With the old cables I had the resolution set at 1280 x 768 and it was almost perfect.
    The same resolution here looks like the image below.
    It wouldn't be so bad but there is no option to scroll over to the right, not even using the Magic Mouse.
    Any help or suggestions appreciated


  14. #14

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
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    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    Try other resolutions - I'd start out at 1920 x 1080.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  15. #15


    Member Since
    Oct 30, 2010
    Location
    Blackburn, Lancs, North West England
    Posts
    321
    Specs:
    Mac Mini Aluminium running at 2.4 GHz.
    Hi Bob.
    I have tried all the other resolutions on the list, even 800 x 600 to no avail.
    I have managed to get one screen just perfect (eBay chat forum) and wondered if there was a way to make all other pages look like that one.

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