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I just finished replacing my cracked imac late 2012 screen. The computer posts but everything is huge and pixelized. When I get to display under system pref, there are no resolutions under scaled. I have no idea whats going on.
Is this a good question?
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Maybe you missed this when I posted it as a comment:
This may be a warranty issue, please give us the last four figures of your serial number located on the bottom of your stand or in "about this Mac", under Hardware if it will boot to a viewable screen.
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DNCW are the last four figures of the serial
Apple iMac "Core i5" 3.2 27-Inch (Late 2012) Specs
Identifiers: Late 2012 - MD096LL/A - iMac13,2 - A1419 - 2546
Look on the bottom of the stand to see if you have a AMD Radeon HD 6970M video card.
I doesnt say anything about AMD on the bottom of the stand
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1. Choose Apple menu > System Preferences, then click Displays.
2. Click Display, click Scaled, then select a resolution. Some apps may not fit entirely on the screen in some scaled resolutions.
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"no resolutions under scaled"
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That looks like a driver issue. Either you need to install some drivers for that new screen, or your gpu has failed and your computer is using your logicboard to output video.
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The backlight on LCD isnt working
Past 24 Hours: 1
Past 7 Days: 4
Past 30 Days: 5
All Time: 407
4 Comments
I just restarted and now it wont even turn on.
by Robert Barnwell
I got it to turn on again. The screen works when its woken out of sleep, but everything is still 640x480 and my monitor is detected as: 'spdisplays_display'
by Robert Barnwell
Another update. After another boot the monitor looks like its off, but when I flash a light on the screen at a certain angle I can see my desktop, which leads me to believe the backlighting isnt working on the screen, but that doesnt explain why there are no resolutions
by Robert Barnwell
This may be a warranty issue, please give us the last four figures of your serial number located on the bottom of your stand or in "about this Mac", under Hardware if it will boot to a viewable screen.
by mayer