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Message from matthew.frank@germantownacademy.org

Heads up to anyone who has purchased, or are looking to purchase the Mid 2012 13” macbook pro:

 

We have been troubleshooting an issue with apple for the past few weeks with our 13" macbook pros. 

 

When we plug into our NEC projectors or a dell monitor, we get a black screen with 4 vertical lines. If I change the resolution to better match the projector (1280x768 60hz), I can get a desktop with 4 lines through it, which looks like a segmented desktop. If  I reboot, I can get a working projected desktop. However, if I disconnect from the projector and reboot, I am back to a desktop image with 4 lines through it. This is using an apple branded displayport to VGA adapter. 3rd party adapters froze the laptop completely with no projected image. 

 

These are the Mid 2012 model 13" macbook pros. The previous generation (late 2011) models work fine as does a Mid 2012 15" macbook pro. Both of these work with the 3rd party adapters as well. The main difference I can find is the newer models have an intel 4000 graphics chip, versus the 3000 series, All are thunderbolt compatable.

 

We have used lion restore to start with a clean image and updateed to 10.7.4. Apple engineering is now looking at our case and I have sent them log captures of the issue. So far, they have not been able to provide a solution.

 

Has anyone else seen this?

 

Thanks,

Matt

 

Matthew Frank

IT Systems Administrator

Germantown Academy

Phone: 267-405-7377

Cell: 215-450-8007

Fax: 215-734-0480

 


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Message from jbourne@kua.org

Re: [ACCESS] 13 inch macbook pro projector issues Kimball Union is experiencing this and have not yet discovered a workaround besides rebooting the computer while connected to the projector.


Message from richardson@rutgersprep.org

Jason,

Word on the street is that the work around is making sure your VGA has all 15pins active.  Many cables don't. 

Peter
Peter K. Richardson
Director of Information Services
Rutgers Preparatory School
1345 Easton Avenue
Somerset, NJ 08873
732-545-5600
www.rutgersprep.org


Message from phoopes@standrews-de.org

Yes, Peter is right. Older cables don't have all 15 pins wired through. You need to make sure your cables have that. Apple is apparently tapping into some of the pins that previously weren't wired (though were part of the spec). ===================== Peter Hoopes Director of Technology St. Andrew's School phoopes@standrews-de.org ===================== ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Message from matthew.frank@germantownacademy.org

Re: [ACCESS] 13 inch macbook pro projector issues

All,

 

I’m under an NDA from Apple so I can’t say too much, but 10.7.5 should resolve the issue. We ended up buying EDID adapters and wall plates from Extron to resolve this. As far as I can tell, this issue is due to the way the new MBP and MBA handle missing EDID information. Most installed projectors that are using switching and/or converters loose this information.

 

Thanks,

Matt

 

 

 

Matthew Frank

IT Systems Administrator

Germantown Academy

Phone: 267-405-7377

Cell: 215-450-8007

Fax: 215-734-0480

 

Message from richardson@rutgersprep.org

Matthew,

THanks, but our MBP's are 10.8.  Can you disclose anything about resolution there?

Peter
Peter K. Richardson
Director of Information Services
Rutgers Preparatory School
1345 Easton Avenue
Somerset, NJ 08873
732-545-5600
www.rutgersprep.org


Message from matthew.frank@germantownacademy.org

We didn’t troubleshoot 10.8, though I have seen this issue with 10.8 and 10.8.1. My guess is that this is the same issue and 10.8.2 should resolve it since apple is aware of the issue, but I am not as sure on that one.

 

Thanks,

Matt

 

Matthew Frank

IT Systems Administrator

Germantown Academy

Phone: 267-405-7377

Cell: 215-450-8007

Fax: 215-734-0480

 

From: The EDUCAUSE ACCESS Constituent Group Listserv [mailto:ACCESS@LISTSERV.EDUCAUSE.EDU] On Behalf Of Peter Richardson
Sent: Wednesday, September 19, 2012 11:16 AM
To: ACCESS@LISTSERV.EDUCAUSE.EDU
Subject: Re: [ACCESS] 13 inch macbook pro projector issues

 

Matthew,

 

THanks, but our MBP's are 10.8.  Can you disclose anything about resolution there?

 

Peter

Peter K. Richardson
Director of Information Services
Rutgers Preparatory School
1345 Easton Avenue
Somerset, NJ 08873
732-545-5600
www.rutgersprep.org

 

Message from warren.apel@gmail.com

Matt,
I saw this EXACT issue two days ago on our brand new MacBook Airs.  Haven't even started looking at solutions yet, but good to know that it's not a bad graphics card or anything!
Warren

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