Thread: Very Grainy Display
02-16-2009, 09:06 AM #1
Very Grainy Display
- Member Since
- Feb 16, 2009
My old iMac running OSX 10.4.1 has suddenly decided to make the display very "grainy" and I am wondering if this is a problem with the OS or the hardware.
I tried altering the brightness and contrast but no good.
When I boot up the pc it looks fine until the wallpaper appears when it is ok for a second or two and then jumps to the grainy display.
Anyone any ideas.
02-16-2009, 09:46 AM #2
- Member Since
- Jun 14, 2007
- 2xiMac24 w Parallels 6 (1x White, 1x Aluminum), iPhone 3GS with iOS5
Update your OS to a later version as the early ones were suspect. Get the latest Combo updater and try that first.
Sounds like a bad driver as a first guess. What kind of plug is the monitor using - DVI or other? Maybe the video card is going away (overheating?) and defaulting to a lower res. Also go into the Preferences>Displays and make sure what you have for a monitor is correctly identified by the system and it should allow a choice of resolutions in the pull down.
02-16-2009, 10:50 AM #3
Check out your display preferences - make sure it's set to millions of colors instead of thousands, as this will make the picture appear "grainy"There is no system but GNU and Linux is one of its kernels.
Join the FSF as an Associate Member!
02-16-2009, 01:43 PM #4
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