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

iMac display sporadic freezing


Post Reply New Thread Subscribe

 
Thread Tools
laguano

 
Member Since: Jun 07, 2007
Location: California
Posts: 53
laguano is on a distinguished road
Mac Specs: 20" 2Ghz iMac w/ glossy screen

laguano is offline
My iMac is the first generation of the aluminum macs that were released in late 2007 and I have recently encountered a problem with screen glitching and spontaneous freezing. Sometimes the screen turns white, sometimes the display shows colorful static, sometimes it freezes finder and all I can do is move the pointer. When the freeze lets me still move the pointer, the pointer reverts to the position in which the pointer was when the screen froze after a few seconds of moving.
Sometimes I notice display glitches like the icons have pixels where the color is wrong. Also the audio usually continues playing, but I cannot force quit anything or relaunch finder (since nothing is accessible). Can someone please help me find a solution to this problem? Running snow leopard, non-apple 4GB 667MHz RAM.

Here are a couple of pictures I have gotten of the weird display problems:

QUOTE Thanks
rothux.j

 
Member Since: May 31, 2011
Posts: 10
rothux.j is on a distinguished road

rothux.j is offline
Well, from the guess of things, I would say this is a software fault, rather than hardware. I say this because, even when it freezes finder, you can still move the pointer.

Go to system preferences and lower the resolution under "Display". Choose the resolution and select one with the lowest frequency (normally 60 Hz). Click "Color" and "Calibrate". Follow the instructions there.

If this doesn't work, back up all your work to another computer or multiple memory sticks, and consider reinstalling the OS.

Also, how long have you had the RAM sticks? You say they are non-apple? Normally I wouldn't think this would have any effect over display, but you never know. Anyway, try what I wrote and see what it results in.
QUOTE Thanks

Post Reply New Thread Subscribe


« old iMac 17"/1.9/512MB/160Gb/SD/AP/BT wont start | Music has vanished from imac...getting iTunes "!" and cannot find file HELP »
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
Imac 2009 does NOT detect external apple display dize11 Other Hardware and Peripherals 3 01-12-2011 06:18 PM
how to display new iMac to 1920x1080 on my HDTV saguakid Movies and Video 12 11-17-2010 08:42 AM
Lifetime of an iMac vs Display Aedaegis Apple Desktops 2 10-11-2010 04:41 PM
iMac G4 Display Alignment (DIY) pigoo3 Apple Desktops 2 05-05-2010 07:19 AM
iMac crashing and freezing after at application launch Juuonse Apple Desktops 3 12-22-2009 07:41 AM

All times are GMT -4. The time now is 08:08 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?