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

Power Mac - Quick Question


Post Reply New Thread Subscribe

 
Thread Tools
Stuck In Mobile

 
Member Since: Jan 03, 2007
Posts: 2
Stuck In Mobile is on a distinguished road

Stuck In Mobile is offline
I posted this on one of the other forums with not much help. Here is my situation, Dual G5 Mac with Flat Panel Cinema Display. When I boot up, it comes up in a very bright type display that actually causes buttons in some apps to no show. Now if I unplug the monitor from back of box and plug in, it changes to a softer better display. I have tried the calibration, changed every setting I can think of with no luck. For some reason, it is stored somewhere and I cannt figure out where. I have tried findiing a default of some kind as well with no luck. But, like I mentioned earlier, when I unplug and replug, it comes up fine. Any help would be great.

Thanks in advance.
QUOTE Thanks
mac57

 
mac57's Avatar
 
Member Since: Apr 29, 2006
Location: St. Somewhere
Posts: 4,560
mac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant futuremac57 has a brilliant future
Mac Specs: iMac 27" 3.4 GHz, 256 GB SSD, 2 TB HDD, 8 GB RAM

mac57 is offline
This is an Apple Cinema display, correct? And a PowerMac G5? Also, when you plug and unplug, is it the video cable or the power you are unplugging?

I think we need to do a little debugging here. Does this PowerMac work OK with any other flat panel? Alternately, does this flat panel work OK with any other Mac (or even PC)?

This simple test will isolate the problem right away to one side of the link or the other. Until we can determine that, remember it could be either your video card or your display. The first job is to determine which one it is.

My Macs: iMac 27" 3.4 GHz, Mac Pro 3.2 GHz, PowerMac G5 Quad 2.5 GHz, G4 Cube with 1.2 GHz Upgrade
My iStuff: 64GB iPhone 5, 64GB iPad4, 30GB iPod Video, 16GB iPod Touch
My OS': Mac OS X Lion, Mac OS X Snow Leopard, Mac OS X Tiger, Mac OS 9.2.2, openSUSE 10.3
I was on the Mac-Forums honor roll for September 2007
QUOTE Thanks
andy_mx1

 
Member Since: Dec 31, 2006
Location: Georgia, USA
Posts: 25
andy_mx1 is on a distinguished road
Mac Specs: c. 2003 PowerMac G5 1.6 GHz; 3GB RAM; NVIDIA FX 5200 Ultra w/Apple 20" Display

andy_mx1 is offline
Howdy, Stuck In Mobile.

I wonder if your Apple Cinema Display is the c. 2004 model. . . the one on a curved aluminum base with the Power Adapter (a white box) that takes several USB connections?

If so, could your problem possibly be related to a mix-up with the connexions?

Also, if it's a software glitch, you can go to the Utilities folder, load ColorSync Utility and run the (color) Profile First Aid scan to determine if there's an error somewhere in the system. If one is found then you should run the Repair option. But all your display profiles are there.

System Preferences/Displays/Color is where you want to go to check/change display options. There you can "roll your own." Tip: Go the "Expert" route and pull the first two little balls on the left adjustment slightly BELOW the horizon, leaving the rest alone until you get to Native White and Gamma settings. For a richer screen hue move those adjustments to the right of the default setting, using the slider.

Also check the screw that holds your graphics card in place; if the screw's loose the card may not be seated properly. That will definitely cause trouble. That's what I do when my screw gets loose.

Consider running a PRAM reset.

But it's knowing how spacey I get installing stuff. . . that a crossed-up connection would always be a distinct possibility when dealing with your type problem. It's usually the simple things. . .

My old flat screen digital monitor began suddenly going black a few years ago, and I found that jiggling the power plug at the back of the unit would temporarily restore the screen. But it would always go black again soon afterwards and I could hear a rapid tick-tick-ticking coming from under the cover.

I finally mustered enough moxy to pull the cowling and then plugged the cable back in, with the naked unit sitting flat on my desk. The ticking seemed to be coming from a point at the bottom of the unit near the right-hand edge.

Yep; it was a cracked circuit-board, and current was arcing between the gaps. What a devolting revelopment.

Funny. . . the junk that can be pressed into service when all else fails. I'd tried soldering the crack; tried glueing the board at the place where the crack seemed to be (I couldn't actually see it it would've taken a Magnaflux treatment to find it) and finally, in despair wound up ramming 1/2 of a wooden clothespin under the edge of the board just to prop it up . . . and by gum, that did the trick!

Until each time the clothspin slipped a bit, that is.

Recently I broke down and shelled out for a new 20" Apple display with the little white box and all the wires. No mortgage, but almost. The old monitor's now collecting dust in the workshop, awaiting its fate. I don't miss it.

The new display has beautiful, sharp definition and brilliant color. I love it. It's this old c. 2003, 64MB graphics card that worries me now.

Knock on wood.
QUOTE Thanks

Post Reply New Thread Subscribe


« Crashing tray load iMac | Is it worth the upgrade? »
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
Quick question Dazzypants OS X - Operating System 4 10-26-2006 11:08 AM
Quick Question On Saving Items youthpastor OS X - Operating System 2 02-09-2006 03:15 PM
Quick Question Bradstreet Images, Graphic Design, and Digital Photography 4 12-23-2005 10:34 AM
Quick Dock Question daveh OS X - Operating System 5 12-10-2005 08:52 PM
quick powerbook question Conehead778 Apple Notebooks 4 10-12-2005 04:57 PM

All times are GMT -4. The time now is 09:05 PM.

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?