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General Mac hardware discussions forum: Monitor is black and blinking

by: ctlmac September 8, 2010 7:47 PM PDT

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Monitor is black and blinking

by ctlmac - 9/8/10 7:47 PM

Have a G5 with a Samsung LCD monitor. Has worked fine until the other day when the monitor turned black and blinks with a white box in the top left corner. Can also see the desktop sometimes during the blinking. I hooked up another working monitor (same brand/model) and an older monitor to the G5 and had the same problem. Changed cables and still nothing. I am able to get the monitor to work if I restart in safe mode (extensions off). Any suggestions?


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Some piece of software is shutting down the graphics card

by mrmacfixit Moderator - 9/9/10 4:59 AM

In Reply to: Monitor is black and blinking by ctlmac

Have you installed something new lately?

Starting in Safe Mode, as you know, turns off extensions. If the graphics card works with extensions off, then the problem is obviously software.

Think back on what you have installed lately.


P


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software shutting down graphics card

by ctlmac - 9/9/10 6:43 AM

In Reply to: Some piece of software is shutting down the graphics card by mrmacfixit Moderator

Thanks. We installed CS4 package about a month ago so maybe something in that is causing a conflict. Will uninstall and see if that works.


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(NT) Let us know

by mrmacfixit Moderator - 9/9/10 4:15 PM

In Reply to: software shutting down graphics card by ctlmac


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Well

by juliasampres - 10/26/10 3:33 PM

In Reply to: software shutting down graphics card by ctlmac

I think you have gotten your solution to the problem you were facing.


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