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Harryc56 Junior Member


Joined: 31 May 2009 Posts: 42
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Posted: Sat Jun 13, 2009 12:56 pm Post subject: Mini Displayport to DVI Adapter Problem - Mid 2009 uMBP |
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I have a new mid-2009 Macbook Pro hooked up to a 20" Samsung 2033sw LCD with a native 1600x900 resolution using a mini Displayport to DVI adapter that I bought off of EBay. No matter what I've tried I can't get anything to display on the external Samsung LCD higher than 1024x768. I tried switching between GPU's and that made no difference. Any ideas.? _________________ 2010 Mac Mini, 2.66Ghz C2D, 320GB SG HD, 8GB RAM
2010 Macbook Pro, 2.4Ghz i5, 320GB Hitachi HD, 4GB RAM |
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Texark Senior Member


Joined: 11 Apr 2005 Posts: 353 Location: Houston
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Posted: Sat Jun 13, 2009 2:34 pm Post subject: |
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| What brand is the MiniDP adpater? There could be something wrong it. |
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Harryc56 Junior Member


Joined: 31 May 2009 Posts: 42
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Posted: Sat Jun 13, 2009 2:55 pm Post subject: |
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It's an aftermarket adapter cable made in China. I have no idea if it works or not. _________________ 2010 Mac Mini, 2.66Ghz C2D, 320GB SG HD, 8GB RAM
2010 Macbook Pro, 2.4Ghz i5, 320GB Hitachi HD, 4GB RAM |
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philiparcario Veteran Member

Joined: 19 Jun 2006 Posts: 4569 Location: Howell NJ USA
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Posted: Sat Jun 13, 2009 3:25 pm Post subject: |
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1st question do you have a different display you can test with? a friends? _________________ 2010 Mm 2.4 C2D oem 320gb hdd 8gb ram
2012Mm base 2.5 with 16gb ram diy fusion drive
2012Mm quad with 8gb ram oem 1tb hdd
promise pegasus r6 3x 3tb + 3x 4tb =21tb hdds
lacie little big disk 2x 512gb ssds
synology 2tb disk station |
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Harryc56 Junior Member


Joined: 31 May 2009 Posts: 42
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Posted: Sat Jun 13, 2009 6:30 pm Post subject: |
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I pulled out an older LG LCD that is fairly generic, .e.g. it has DVI in at 1280x1024. Same problem on that LCD ... nothing (that is legible) higher than 1024x768, but this time at 1280x1024 I get major noise and screen distortion. The displayed image is jumping all over the place, but at least there is something displayed. Just to be thorough, I am going to try another DVI-D cable next.
Edit: I tried a different DVI-D signal cable, and now the display on the LG LCD is fine at 1280x1024. Next I'll swap the Samsung LCD back. _________________ 2010 Mac Mini, 2.66Ghz C2D, 320GB SG HD, 8GB RAM
2010 Macbook Pro, 2.4Ghz i5, 320GB Hitachi HD, 4GB RAM |
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Harryc56 Junior Member


Joined: 31 May 2009 Posts: 42
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Posted: Sat Jun 13, 2009 8:11 pm Post subject: |
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This is solved. It was the DVI-D cable. The original Samsung LCD now works fine at 1600x900. Thanks for the help. _________________ 2010 Mac Mini, 2.66Ghz C2D, 320GB SG HD, 8GB RAM
2010 Macbook Pro, 2.4Ghz i5, 320GB Hitachi HD, 4GB RAM |
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