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HDMI adapter not working after upgrade

F

fallendusk

macrumors newbie
Original poster
Feb 28, 2011
5
0
Ever since upgrading to 10.7, my Dynex Mini-DP to HDMI adapter has stopped working.

I've tried on both my 2011 MBP 15in, and my roommates 2010 MBP 13in with the same results. The LCD will flash blue while unplugging the adapter or HDMI cable but refuses to detect any TV plugged into it.

Any ideas? I've tried different TVs/HDMI cables and zapping the PRAM without any luck.

edit: on my 15in, plugging in the adapter switches to the AMD chip and unplugging it switches it back to the Intel graphics.
 
fallendusk said:
Ever since upgrading to 10.7, my Dynex Mini-DP to HDMI adapter has stopped working.

I've tried on both my 2011 MBP 15in, and my roommates 2010 MBP 13in with the same results. The LCD will flash blue while unplugging the adapter or HDMI cable but refuses to detect any TV plugged into it.

Any ideas? I've tried different TVs/HDMI cables and zapping the PRAM without any luck.

edit: on my 15in, plugging in the adapter switches to the AMD chip and unplugging it switches it back to the Intel graphics.
Click to expand...

Unfortunately, Dynex is Best Buy brand, which means I'd rather buy an adapter from china advertised as a shoe for display purposes before a Dynex adapter.

The above probably makes no sense but that was partially intended, monoprice.com is where I got my adapters, all of which work and all were half the price of any adapter at Best Buy.
 
Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5)

There's nothing wrong with Best Buy brands. I use a Dynex mini-DP - HDMI adaptor for my 15" MBP and it works perfectly with Lion.
 
Nuckinfuts said:
Unfortunately, Dynex is Best Buy brand, which means I'd rather buy an adapter from china advertised as a shoe for display purposes before a Dynex adapter.

The above probably makes no sense but that was partially intended, monoprice.com is where I got my adapters, all of which work and all were half the price of any adapter at Best Buy.
Click to expand...

It worked perfectly fine on both laptops under SL since I bought it (back in Feb, a few days after I got my MBP). Never had any trouble with it until we upgraded to Lion but who knows. Thanks for the link though.

Icy1007 said:
Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5)

There's nothing wrong with Best Buy brands. I use a Dynex mini-DP - HDMI adaptor for my 15" MBP and it works perfectly with Lion.
Click to expand...

I wonder if maybe the adapter died then and it's just a coincidence that we haven't used it since upgrading. I might try to have them replace it then.
 
Icy1007 said:
Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5)

There's nothing wrong with Best Buy brands. I use a Dynex mini-DP - HDMI adaptor for my 15" MBP and it works perfectly with Lion.
Click to expand...

Dynex adapters cut corners and don't necessarily forward every pin, add that to cheap construction and I'd call that something pretty wrong. Not to mention you can buy something of better construction for half the price.
 
Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5)

Nuckinfuts said:
Icy1007 said:
Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5)

There's nothing wrong with Best Buy brands. I use a Dynex mini-DP - HDMI adaptor for my 15" MBP and it works perfectly with Lion.
Click to expand...

Dynex adapters cut corners and don't necessarily forward every pin, add that to cheap construction and I'd call that something pretty wrong. Not to mention you can buy something of better construction for half the price.
Click to expand...

Where's your proof of that? I've had no issues with products with the Dynex name.
 
Icy1007 said:
Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5)



Where's your proof of that? I've had no issues with products with the Dynex name.
Click to expand...

Um, the two I bought that I brought back, the first of which was an open-box item so I shrugged it off and paid the new price after returning it just to find that even the new one was terrible. Dynex, Insignia, and RocketFish are all overpriced crap.
 
I have this same problem and I've tried 2 different adapters. It will not work on my MBA but I also tried a MBP running Lion and it will not work either.
 
A couple of things to try. First try restting PRAM and SMC. Next boot into safe mode and try the adapter.
 
Nuckinfuts said:
Um, the two I bought that I brought back, the first of which was an open-box item so I shrugged it off and paid the new price after returning it just to find that even the new one was terrible. Dynex, Insignia, and RocketFish are all overpriced crap.
Click to expand...

That is just your opinion. They are just rebranded products. My Insignia LCD TV was actually manufactured by Samsung.

I'm using a RocketFish HDMI cable plugged into my Dynex Mini-DP -> HDMI adaptor to connect my external display.

Just because you had a bad experience with some lemons doesn't mean the brand is bad.


mike21190 said:
Just downloaded 10.7.1 and it is still not working.
Click to expand...

Try the adaptor on another computer with SL if possible.
 
Try the adaptor on another computer with SL if possible.
Click to expand...

I can't. My MBP running SL doesn't have a Mini display port. I can only try it on a MBP running Lion, which gives me the same result.
 
mike21190 said:
Just downloaded 10.7.1 and it is still not working.
Click to expand...

Try switching from integrated to discrete graphics. My MBP wouldn't automatically switch when I connected my HDMI cable to the TV, so no signal, but when I forced it to switch to discrete it worked perfectly.
 
Icy1007 said:
That is just your opinion. They are just rebranded products. My Insignia LCD TV was actually manufactured by Samsung.

I'm using a RocketFish HDMI cable plugged into my Dynex Mini-DP -> HDMI adaptor to connect my external display.

Just because you had a bad experience with some lemons doesn't mean the brand is bad.

Try the adaptor on another computer with SL if possible.
Click to expand...

You paid for a RocketFish HDMI cable?... you made that saleperson's day right there

BestBuy: (the dynex adapter is gone, yay)
(8' RocketFish HDMI = $31.99) + (RocketFish MBP->HDMI = $25.99) = $57.98

MonoPrice:
(8' 28AWG HDMI = $4.28) + (MDP->HDMI adapter = $6.65) = $10.93

Which one of those is overpriced? hmmm
 
I have same problem with my new MBA 13 that O bought last month. Last night, I hooked it to my SONY 46' LCDTV in my bedroom via miniDP to HDMI adapter, the MBA detect the SONY TV, but the TV said no signal was detected.
The adapter was bought from monoprice, and was working perfect with my 15' MBP with Mac OS X SL 10.6. So I bring the MBP that upgraded to Lion last month, connected it to TV via the adapter, same problem, MBP can detected the TV, but TV said no signal. So it must be a bug in OS X 10.7 Lion.
 
Nuckinfuts said:
Unfortunately, Dynex is Best Buy brand, which means I'd rather buy an adapter from china advertised as a shoe for display purposes before a Dynex adapter.

The above probably makes no sense but that was partially intended, monoprice.com is where I got my adapters, all of which work and all were half the price of any adapter at Best Buy.
Click to expand...

I have a Dynex adapter, it works fine, both video and audio is transmitted. Cant say its a crap product... it works on my 2011 15" MBP.
 
I had the same problem the first one I got was dead out of the box I contacted the company I bought it from and they said they would send out a new one. Now the new one is functioning properly.
 
I tested other miniDP adapters on MBA last night, including miniDP to HDMI, miniDP to VGA, miniDP to DP, and miniDP to DVI, all worked when output to a Dell U2711 monitor. I googled, and found many complains in Apple Forum, regarding miniDP to HDMI adapter did not recognize many brand of TVs. So, it is not hardware problem, but a Lion software bug.

riverwater said:
I have same problem with my new MBA 13 that O bought last month. Last night, I hooked it to my SONY 46' LCDTV in my bedroom via miniDP to HDMI adapter, the MBA detect the SONY TV, but the TV said no signal was detected.
The adapter was bought from monoprice, and was working perfect with my 15' MBP with Mac OS X SL 10.6. So I bring the MBP that upgraded to Lion last month, connected it to TV via the adapter, same problem, MBP can detected the TV, but TV said no signal. So it must be a bug in OS X 10.7 Lion.
Click to expand...
 
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