Corrupt graphics display?

R

roysters

Registered
Hi all,

My colleague is having a nightmare with the display of on his G5, and we are strugling to find a solution.

When he boots up everything is crystal clear on the monitor until logs on. Then it changes to corrupt display e.g colurs bleeding, blury text, distorted icons/colours.

We have changed the graphics card with no joy. The really strange thing is when we configure the display using "detect display" it fixes itself?! but this has to be done everytime which gets very tedious!

I've come to the conclusion that this is a software issue... BUT the display can also be temporarely fixed if he jiggles the DVI connector around?! surely this can't be software and hardware?!

Also, when he logs onto his spare account the display is FINE! could this be a profile corruption??

We are running a Dual 1.8 G5 with 2 GB ram OSX version 10.3.9

Any help would be greatly appreciated.

Thanks.
 
Sounds like he just has the resolution set wrong for the monitor. What resolution is he running the monitor at?

If not, it could be some ColorSync profile or something screwing with the color. Also, the DVI connector should not "jiggle" -- it should be snug in it's plug (ugh... didn't mean to rhyme that, I swear!).

I'm assuming this is a flat-panel LCD monitor, no? You didn't specify...
 
The resolution auto detects to a standard 1280x1024. Sorry, the monitor is a 22" lacie CRT. When I said "jiggle" i meant that if he touches the DVI connector it sometimes fixed the problem.

That was with the VGA graphics cards we had. We are now using a PCI card with the same results
 
Hmmm... it does sound like a bad connection. What happens if you try different resolutions? Is it only 1280x1024 that makes things fuzzy? Odd that it works perfectly in a different account, though...
 
The only other thing I can think of is that it may be using a refresh rate that's either too high or too low for the monitor...

...it's got me stumped!
 
Double check your Universal Access pref pane. Make sure 'Enhance Contrast' is set to normal... If not, this will cause distortion similar to your symptom.
 
Deltamac!!

Your a damn genius! that was it.... my god, we feel like idiots. It's not an option I go into allot.

Anyway, thanx to everyone for helping! I'm forever in your debt.
 
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