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Is 10.5.5 consistently not working with external displays?
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Senior User
Join Date: Oct 1999
Location: Austin, TX 78751
Status:
Offline
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I've read on two Apple Discussions threads that external displays cease to work when users upgrade to 10.5.5, including Apple's own Cinema Display. I have a 20" Apple Cinema Display connected to a PowerBook G4/1.67 Ghz. Are upgraders to 10.5.5 consistently seeing this problem, including with Apple's displays?
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Last edited by Le Flaneur; Sep 17, 2008 at 07:54 AM.
Reason: added information about host computer)
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Professional Poster
Join Date: Nov 2000
Location: Tasmania, Australia
Status:
Offline
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No problems so far with the external Dell display attached to my MacBook.
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Moderator  Join Date: Jan 2001
Location: Polwaristan
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I encountered an issue today with my Dell 20" LCD connected to my MBP C2D. I woke up the computer for the first time after installing 10.5.5 and it didn't auto-wake or auto-recognize the LCD. Never had this problem before. The MBP's screen was fine though, so I went in to system prefs > displays and chose 'detect displays'. After that, it recognized the external. I'll put it to sleep again tonight and will just have to check to see if the issue repeats.
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Posting Junkie
Join Date: Nov 2000
Location: in front of my Mac
Status:
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The two 23" ACDs I have hooked up to my MBP are working as good as always with 10.5.5.
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Posting Junkie
Join Date: May 2001
Location: Brisbane, Australia
Status:
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No problems with my two 20" Cinema Displays hooked up to an 8800GT.
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Forum Regular
Join Date: Dec 2007
Location: a small village in western Poland
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Portables with external displays hooked up need to re-detect displays. This needs to be done only once.
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Wojtek
All Macs still running: iMac G3 Trayloader 333MHz, iMac G3 350 MHz, iMac G4, PM G4 DP 1.6 GHz, 2 x eMac 1 GHz, PBG4 12" 1.5 GHz, Mac SuperMini™ C2D 2.33GHz/802.11n/200GB, Mac Pro Quad Core 2.0 GHz/4GB.
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Senior User
Join Date: Oct 1999
Location: Austin, TX 78751
Status:
Offline
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Originally Posted by hwojtek 
Portables with external displays hooked up need to re-detect displays. This needs to be done only once.
This apparently doesn't work for some people with MacBooks (with 4GB of RAM?).
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Mac Enthusiast
Join Date: May 2002
Location: Akiba alleyway
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Originally Posted by Le Flaneur
This apparently doesn't work for some people with MacBooks (with 4GB of RAM?).
While that may be true for *some* people, I happily report that my 23" ACD is functioning just fine attached to my 2.2 GHz MacBook with 4GB of RAM and running OS 10.5.5 . It also works fine attached to a 15" MBP with 4GB installed, also running 10.5.5. (Needless to say, the portables are not connected to the ACD at the same time.  )
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