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 Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

MacBook Pro - Late 2008 MacBook Pro, External Display Won't Come Back On After Screen Shuts Off


Post Reply New Thread Subscribe

 
Thread Tools
RocketMan85

 
Member Since: Nov 06, 2008
Posts: 5
RocketMan85 is on a distinguished road

RocketMan85 is offline
Hello all!

I have a brand new 15" MBP (the 2.53GHz model) that arrived earlier this week. So far, it has been great, except for one problem. I have an external monitor (20" ViewSonic VX2025wm) that is connected to my MBP via the mini-DVI port (using a standard mini-DVI to DVI adapter). It all works great...until the screens power off after 10 minutes (the time I set in System Prefs -- the screen saver kicks in after 5 mins). When I move the mouse (or press a key or whatever) to use my computer after this point, the main display of the MBP comes back to life as usual, but the external monitor does not. The only way to get a picture back on the external monitor is to unplug the external monitor, wait a few seconds, then plug it back in. Then it's as good as new.

However, when this problem occurs, the external monitor is still receiving a signal. It just has no picture. Occasionally it will flicker, sometimes showing the correct image for about half a second. It acts as if there is a loose connection, however all connections are tight and secure. The only way to fix it is, as I mentioned before, to unplug the monitor from the MBP and plug it back in.

There is nothing majorly wrong with the external monitor. I have been using it for quite sometime with my late 2006 2.16GHz MBP's DVI output. Just to be sure, I reconnected it to another computer and it works flawlessly. The issue is clearly with either the new MBP, the mini-DVI to DVI adapter, or some way in which the external monitor is interpreting the signal. Considering that the external monitor appears to still be receiving a signal, but displays no image, leads me to think the problem is with the MBP.

All software updates are currently installed. Suggestions?
QUOTE Thanks
chscag

 
chscag's Avatar
 
Member Since: Jan 23, 2008
Location: Fort Worth, Texas
Posts: 39,018
chscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond repute
Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, OS X Mavericks

chscag is online now
Have you tried it in both modes? (mirror and extended desktop) And, does the external monitor display in its native resolution when it comes on?

Also, have you tested it in clamshell mode? (you'll need an external keyboard and mouse)

Since the machine is new, if it continues giving you problems with intermittent video to the external monitor, you might consider taking it on in to Apple and have them look at it. It could be a graphics card defect.

Regards.
QUOTE Thanks
steveb

 
Member Since: Nov 23, 2008
Posts: 2
steveb is on a distinguished road

steveb is offline
I have the same problem, but can add the following...

Until upgrading late October 08 to an aluminum MacBook, I had a black MacBook (but the same external monitors and the same version of OS X), and did not experience any such problem.

As soon as I upgraded my machine to the new MacBook, I found that frequently when the laptop put the screen into power save, the screen would either 1) not awake (though the laptop would---rendering most windows inaccessible since they were "displayed" on a blank external monitor), or 2) would awake into a nasty state with flashing randomized black and white pixels.

In both cases the solution was just to unplug and replug the mini-port-to-DVI adapter. This has the annoying side affect of reorganizing my windows.

Any further insight into this problem would be appreciated.

As far as I can discern, it is not particularly dependent on the external monitor (I routinely experience it with two different monitors at home and work), and is particular to the Aluminum MacBook (since the problem only arose when I moved over from a black macbook, even with the same OS X version).
QUOTE Thanks
steveb

 
Member Since: Nov 23, 2008
Posts: 2
steveb is on a distinguished road

steveb is offline
It turns out that this is pretty comprehensively discussed here:

Apple - Support - Discussions - New MacBook connected to external VGA ...

A possible fix here:

MacBook, MacBook Pro Software Update 1.2

And a promise of a fix here:

AppleInsider | Apple trimming notebook orders; plans fixes for new models
QUOTE Thanks

Post Reply New Thread Subscribe


« Can I run WoW with the Intel GMA 950 graphics card? | MacBook dosen't start »
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
19 Days with a Macbook Pro b.hicks Switcher Hangout 23 03-01-2010 12:49 AM
External display settings Macbook...can't do 1680 x 1050, it's frustrating! zcamel Apple Notebooks 6 06-17-2009 12:31 PM
Print Screen button in a MacBook Pro Tarek Schweb's Lounge 1 09-19-2008 01:25 AM
Macbook external display ISSUES! ChicagoTom Other Hardware and Peripherals 1 07-31-2008 10:28 PM
MacBook impressions - trip to store kaidomac Schweb's Lounge 24 10-14-2007 01:45 PM

All times are GMT -4. The time now is 01:58 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?