New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

Mac mini with mini display to vga adapter problem


Post Reply New Thread Subscribe

 
Thread Tools
the

 
Member Since: Mar 13, 2010
Posts: 3
the is on a distinguished road

the is offline
Hello.

I have recently bought a mini display to vga adapter and it worked great until today.

What happens is when I connect the Mini display-to-vga-adpateret in the mini-display port the screen (on my primary display) goes completely blue in a little while and then come back to normal in a little while, and so it continues. When I go to System preferences -> Display and viewing display profile that is under the Color tab, then I can see that I get another profile added, but this appears only in a half a second, just before the screen goes blue .

It worked perfectly right to start with. When I connected it the first time it was set to Mirrored so I got the same screen on both the primary monitor and secondary monitor (tv). I then turned off mirroring, since I wanted to extend the desktop to the TV. (and it worked perfectly, until now)

My setup is the following:

Mac mini
Mini display to vga adapter
VGA cable
Ultimate 2000 AX Converter box (DealExtreme: $34.99 UltiMate 2000 AX VGA to Composite Video Media Convertor Box)
And a video cable from this converterbox to my TV.
(and I have a decent screen that is selected as the primary screen, this is running in 1920x1200 resolution if that would have a say)

I first thought the problem was the converter box, but when I disconnected it from and ONLY had the Mini display-to-VGA adapter connected to the mini display port on the Mac mini, I experienced exactly the same problem.

Does anyone have any suggestions for what might be wrong here? What should I do to make it work again?
QUOTE Thanks
bobtomay

 
bobtomay's Avatar
 
Member Since: Dec 22, 2006
Location: Texas, where else?
Posts: 25,043
bobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond repute
Mac Specs: 15" MBP 2.33 C2D 256 4GB, MBA 13" i7 1.8, MB 2.0 2GB, Nano 4th, 3GS, iPad 1

bobtomay is offline
1st thing to do is disconnect every cable & adapter and reconnect - always the first step.

Try re-booting.

There has been a firmware update for Apple's mini displayport to VGA adapter. If you have not installed that update,might check to see if your adapter requires it.
Mini DisplayPort to VGA Firmware Update

Still not working, it may have died. I'd suggest heading to monoprice for your next one. You should try to verify it's also not the VGA cable itself, but I'd wager it's the adapter.

I cannot be held responsible for the things that come out of my mouth.
In the Windows world, most everything folks don't understand is called a virus.
QUOTE Thanks
the

 
Member Since: Mar 13, 2010
Posts: 3
the is on a distinguished road

the is offline
I've tried rebooting and reconnecting cables.

I tried to install that driver updated, but it wouldnt work; "The updater could not find a mini displayport to vga adatper to update." When my adapter was connected with a vga cable to my primary monitor this time.

Thing is also, when I ONLY have the Mini DisplayPort to VGA Adapter connected, without any VGA cable connected. Then the screen turn blue for a second and turns back to normal, almost like its finding a new display and setting it up, but it countinues over and over again. So I'm wondering if it has to be my adapter then? Or if it is normal to behave like this when there's no VGA cable connected to it?
QUOTE Thanks
liquinno

 
Member Since: Jul 31, 2010
Posts: 1
liquinno is on a distinguished road

liquinno is offline
Hi,

I'm having the exact same issue using the minidisplay to vga port.

I'm trying to connect my MacBook Pro to a 226 Samsung display.

It is constantly looping to find the display and every now and then I see my desktop background only to disappear half a second later.

When I insert the vga adapter without attaching the screen, my macbook screen turns blue for a second and then back to normal.

I downloaded the patch, but when executing it says that it cannot find an adapter.

I tried connecting it to another screen, and strange enough the adapter works fine on that other screen, but still ... the patch says it cannot find an adapter.

Has anybody found a solution for this? I see problems with it all over the place.

Greetings,

Kristof.
QUOTE Thanks
bobtomay

 
bobtomay's Avatar
 
Member Since: Dec 22, 2006
Location: Texas, where else?
Posts: 25,043
bobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond repute
Mac Specs: 15" MBP 2.33 C2D 256 4GB, MBA 13" i7 1.8, MB 2.0 2GB, Nano 4th, 3GS, iPad 1

bobtomay is offline
This makes the 4th external monitor issue in the past 24 hours just in this forum - it also makes it number 4 for... guess which brand of TV/monitor...




No, really... go ahead and guess...



Sorry, but if it's working on another monitor, just not on your Samsung... my only suggestion is to call Samsung. Oh, and I really do wish you good luck there. They have the worst customer service in the industry. My guess as to the first words out of the techs mouth, "We don't support Macs".

I cannot be held responsible for the things that come out of my mouth.
In the Windows world, most everything folks don't understand is called a virus.
QUOTE Thanks

Post Reply New Thread Subscribe


« desktop for me? | Vesa Wall Mount Removal Gone Wrong »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
Need to know how much RAM your Mac can hold? iLaugh Other Hardware and Peripherals 6 12-13-2009 01:49 PM
An adapter for 20001 Studio Display to Mac Mini claycurio Other Hardware and Peripherals 1 12-03-2008 03:47 PM
Questions about Mac Mini and Imac-how much power? markw10 Apple Desktops 3 08-22-2006 06:12 PM
Apple VGA Display Adapter??? Shayne Apple Notebooks 1 12-28-2004 11:50 PM

All times are GMT -4. The time now is 10:12 AM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?