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Macbook Pro not detecting external monitor
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<blockquote data-quote="chscag" data-source="post: 883994" data-attributes="member: 46727"><p>Well, you have the correct mini display port adapter from Apple and your MBP is new, so we can eliminate both of them. That leaves us with the DVI-D cable and the monitor.... And it appears your monitor works when hooked via VGA to your X-BOX. You could have a bad DVD-D cable but that's unlikely especially if you bought it new.</p><p></p><p>Try this: If your external monitor has a "reset to factory default settings" option, go ahead and do that. Then power everything off for awhile. Afterward, hook everything up again. While your MBP is off, turn on the external monitor first, turn on your MBP (make sure it's on AC power not battery) and see what happens. Both screens should light. Also - make sure when you adjust the settings on your external monitor, that you set it to detect both VGA and DVI. You might just have it set for VGA only.</p><p></p><p>If that works, you can go ahead and select "detect displays", make adjustments for resolution and so forth, set the external for "mirror".</p><p></p><p>Note: Some external monitors have "memory" built in and stubbornly refuse to change settings if they've been used one way (VGA) and then switch to another mode (DVI). Doing a factory default reset usually cures that. I've had the same thing occur with my Samsung external monitor.</p><p></p><p>Post back and let us know.</p><p></p><p>Regards.</p></blockquote><p></p>
[QUOTE="chscag, post: 883994, member: 46727"] Well, you have the correct mini display port adapter from Apple and your MBP is new, so we can eliminate both of them. That leaves us with the DVI-D cable and the monitor.... And it appears your monitor works when hooked via VGA to your X-BOX. You could have a bad DVD-D cable but that's unlikely especially if you bought it new. Try this: If your external monitor has a "reset to factory default settings" option, go ahead and do that. Then power everything off for awhile. Afterward, hook everything up again. While your MBP is off, turn on the external monitor first, turn on your MBP (make sure it's on AC power not battery) and see what happens. Both screens should light. Also - make sure when you adjust the settings on your external monitor, that you set it to detect both VGA and DVI. You might just have it set for VGA only. If that works, you can go ahead and select "detect displays", make adjustments for resolution and so forth, set the external for "mirror". Note: Some external monitors have "memory" built in and stubbornly refuse to change settings if they've been used one way (VGA) and then switch to another mode (DVI). Doing a factory default reset usually cures that. I've had the same thing occur with my Samsung external monitor. Post back and let us know. Regards. [/QUOTE]
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