DisplayPort to HDMI adapter NOT WORKING!!!!

I have tried and tried and can't get this working. I'm on a T500 and running Windows 7. The T500 just doesn't recognize the external monitor when I have the displayport to hdmi adapter plugged in and an hdmi cable running from that to the external monitor.
HELP PLEASE???

I don't have the same ThinkPad as you (I have a T410 with discrete graphics), but I DO have the same Monoprice DisplayPort to DVI adapter, and I can confirm that it does work, when connected via a DVI cable to a Viewsonic LCD monitor. I did notice that, when the monitor goes into power-saving/sleep mode, the laptop won't recognize it when the laptop resumes from sleep. I had to toggle the monitor power swtich off/on, and then select it with the laptop's Fn-F7 hotkey (the laptop utility calls it a "projector"). So, you might have to fiddle with that.
By the way, my 19-inch Viewsonic LCD shows just how crummy the ThinkPad's LCD is, by comparison. The image via DisplayPort/DVI is fantastic. The NVIDIA control panel confirms that the ThinkPad<-->dongle<-->DVI cable<-->monitor connection supports HDCP, by the way, so it'll play protected content.
When I get around to it, I will also try plugging the ThinkPad into my TV via the similar MonoPrice HDMI / DisplayPort dongle.
--Steve

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Mini-Displayport to DVI adapter not working, but Mini-Displayport to VGA and Thunderbolt work fine

Mini-Displayport to DVI adapter not working, but Mini-Displayport to VGA and Thunderbolt work fine.
This is a brand new MacBook Pro (15-inch, mid-2012) just received. I suspect that this is a hardware problem as:
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Both MacBook Pro's are running OSX Lion 10.7.4.
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All adapters and components (mini-displayport adapters) are Apple retail adapter.
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I turns out that the logic board of my MacBook Pro was faulty (despite being brand new).
I took it to the Apple Store, presented the problem, and one of the Tech's came to the same conclusion that I had -- hardware failure. Phone support was no help in the matter (and even told me that what I was trying to do wasn't a supported option, which is rediculous). However, the Genius Bar did take care of the problem, and my MacBook Pro was back to me with a replaced logic board within a few days.
Hope that htis helps.

My hdmi adapter not working anymore, no physical damage. Solution?

My hdmi adapter not working anymore, no physical damage. Solution?
Strange is, that i used it several times, it worked fine. Then wothout any reason (like software updete, etc) it just stopped workung, no sync.
I have not changed any parameters of my TV or Beamer.
Hardware:
Ipad 2, Apple Ipad HDMI Adapter, Samsung P2770FH, Optoma HD 65.
Thanks for any help.

I've only used mine a couple of times without any problem, but due to the thinness of the iPad, care has to be taken in inserting the adapter. Slightly wrong angle and it won't go it.
I had a laptop a few years ago where the USB connector failed. I had it replaced under the warantee, The service man told me it was not an uncommom failure on a laptop due to people "torquing" the USB socket while inserting/removing USB items. I have much the same feeling when inserting either the charger cord or my HDMI adapter.
From your description, unless the HDMI adapter failed internally, it sounds like the socket is causing the problem. A few days ago we watch our first movie from the iPad via my ATV2 and "Air Play". Worked great so I don't plan on using the HDMI adapter much at all in the future. Yes, it is a $99 solution, but it works for me. Of course, I already had the ATV2. I doubt if I would buy one just for this abiliity. If nothing else, it seems like a trip to the Apple Genius bar is in order for maybe a replacement unit.
However, with iOS 5 coming out with supposedly total mirroring, it might be worth thinking about getting an ATV2.

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Hi Kater24,
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I also have this problem and am very unhappy with the way Apple is handling it. Called today to enquire on when the fix will be available and was told it is a software issue that could be fixed if we paid $35.00 to talked through process on the phone. Highly disappointed with Apple, why should it cost me money for them to fix there own issue. Since they are aware of the issue the least they can do it posted the information for the fix online @ no charge.
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Mini DisplayPort to VGA adapter not working under Vista (Boot Camp).

Hi there,
I'm facing a very serious issue with MacBook Pro Unibody running MS Vista under Boot Camp: using the Mini DisplayPort to VGA adapter to hook a projector is 95% impossible because the only resolution available is 640x480 or sometimes 800x600. No solution came from the adaptor firmware update, still same behavior: connecting the external projector/monitor toggles 640x480 resolution with no more choices available. Just 5% of attempts on selected projectors gave me access to the complete resolutions list.
This is having a serious impact on my job where I do need both Mac&Windows running natively and with external display capabilities, please I'm looking for some feedback from users facing the same problem or someone who had an official answer on this issue from Apple. Do avoid posting about using modded display drivers please: I know they exist but the adaptor should be working with original ones.
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Hi,
While in Germany I bought a 'Mini DisplayPort auf VGA Adapter' in order to be able to do presentations on a Beamer. This worked fine for a couple of weeks but now has stopped working.
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Thanks CellarDwellr.
I live in Vienna and things are always different here.
We do not have any Apple Store but a company that represents Apple called McShark.
I went to them with the adaptor and they said they needed my MacAir serial number in order to send it in. Never heard that in order to replace a faulty cable one needs also the serial number of the machine, did you?! ...
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After waiting on them for over half an hour they say they may still not be able to send it in because I do not have the receipt of the purchase. I asked why they could not have told me this earlier on instead of wasting half my day ... The assistant said, yes they could have, but didn't even apolgoize!
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Unbelievable bad service and even worse attitude. If anyone from Apple company reads this my suggestion is to revise their association with this company as it ruins the good brand they have.

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I don't have the same ThinkPad as you (I have a T410 with discrete graphics), but I DO have the same Monoprice DisplayPort to DVI adapter, and I can confirm that it does work, when connected via a DVI cable to a Viewsonic LCD monitor. I did notice that, when the monitor goes into power-saving/sleep mode, the laptop won't recognize it when the laptop resumes from sleep. I had to toggle the monitor power swtich off/on, and then select it with the laptop's Fn-F7 hotkey (the laptop utility calls it a "projector"). So, you might have to fiddle with that.
By the way, my 19-inch Viewsonic LCD shows just how crummy the ThinkPad's LCD is, by comparison. The image via DisplayPort/DVI is fantastic. The NVIDIA control panel confirms that the ThinkPad<-->dongle<-->DVI cable<-->monitor connection supports HDCP, by the way, so it'll play protected content.
When I get around to it, I will also try plugging the ThinkPad into my TV via the similar MonoPrice HDMI / DisplayPort dongle.
--Steve

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I finally learned how to get "Detect Displays" to show up. You have to press the Option key while in the Display pane.
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Greetings obomb2000,
Thank you for visiting Apple Support Communities.
It sounds like your MacBook Air is not outputting video to your TVs using an HDMI adapter, and you've done a good job of isolating this behavior to either the adapter or laptop.
Here are a few additional steps you can try on your MacBook Air before trying another adapter:
Reset the system
You can reset the Mac's parameter RAM and SMC.
From:
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
All the best,
Jeremy

Mini DisplayPort to VGA adapter not working

Hello all!
I purchased a new adapter today off amazon. When I plug it in (with or without VGA cable attached) the screen goes blue for a few moments and comes back to my OS Screen, however, none of my external displays are recognized! My projecter, HDTV, 4:3 monitor, and my Dell 16:10 monitor are all undetected. I tried installing the infamous update and it did not want to (said could not detect adapter). I'm assuming it's rather new seeing how it said thunderbolt on the box, but the box came all ripped open.
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Yeah i tried it with another 19" monitor which had the same outcome, there was a signal but no image.
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DisplayPort to HDMI adapter NOT WORKING!!!!

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