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Mac Pro - Pixely background
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Senior User
Join Date: Aug 2006
Location: Toronto, Ontario
Status:
Offline
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Hi There
I have a Mac Pro 2.66 quad with a 30" cinema display
Whenever is quickly put the computer to sleep or shutdown and wake it up, my background becomes quite pixely, especially around the edges of the background and i have no idea what is causing this (look at the image).
To simply get rid of it, i usually have to turn it off and on several of times, or wait for at least a minute
I've used the x1900 and the 8800 graphics card and both seem to have this annoying feature
Could the problem be the motherboard?
Is it overheating?
I still have Apple Care on it
Thanks for your help
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R.I.P Steve Jobs
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Administrator  Join Date: Jun 2000
Location: California
Status:
Offline
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Check your Displays pref pane, see if you are set to thousands of colors. Have you tried a different monitor for testing purposes?
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Senior User
Join Date: Aug 2006
Location: Toronto, Ontario
Status:
Offline
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I dont have another monitor to test it, i simply have this, imac and laptops
im set at 2560 x 1600 millions of colours
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R.I.P Steve Jobs
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Administrator Join Date: Jun 2000
Location: California
Status:
Offline
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You've eliminated the video card as a possible cause, by testing with two of them. The motherboard isn't likely, nor the RAM - both would cause lockups. You could try booting from the OSX install DVD to eliminate the low-level video code as a suspect.
The remaining suspects are the display and the DVI cable. You need to test both by swapping them with spares, and/or take it into Apple for testing. I wouldn't consider recurring video corruption acceptable.
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Senior User
Join Date: Aug 2006
Location: Toronto, Ontario
Status:
Offline
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about 2 months ago i completely restored my system and backed everything up using time machine
before restoring everything, i also had the same problem
do i take the monitor only or also the Mac Pro?
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R.I.P Steve Jobs
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Administrator Join Date: Jun 2000
Location: California
Status:
Offline
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It's probably the monitor and/or cable, but I'd take the MacPro in also to fully reproduce the problem. Especially if the nearest Apple Store is a ways away. Do you have any other computers available that you could connect the monitor to for testing? Or even just a spare DVI cable?
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Senior User
Join Date: Aug 2006
Location: Toronto, Ontario
Status:
Offline
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I took the Mac Pro and the display to the store and...
1. they are going to replace the monitor
2. replace the logic board
****
they could not replace the logic board is it was welded to the case and therefore they replace the Mac Pro and gave me a new 2009 quad core
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Last edited by mkerr64; Jun 24, 2009 at 10:45 PM.
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R.I.P Steve Jobs
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