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13 inch macbook pro projector issues
Message from matthew.frank@germantownacademy.org
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********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
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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This email has been scanned for all viruses by the MessageLabs SkyScan
service.
________________________________________________________________________
********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Recommend
Comments
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.
Jason,
Director of Information Services
Rutgers Preparatory School
1345 Easton Avenue
Somerset, NJ 08873
732-545-5600
www.rutgersprep.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/.
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
Matthew,
Director of Information Services
Rutgers Preparatory School
1345 Easton Avenue
Somerset, NJ 08873
732-545-5600
www.rutgersprep.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
Matt,