Question about freeze and ATI Radeon HD 2400 XT
Hi,
I have an aluminum 20-inch iMac 7.1 OSX 2.0Ghz intel Core 2Duo, mid 2007 running SL 10.6.8.
Some months ago it started having a random freeze problem that happened sporadically and then increased to happen from around 20min in 20min.
-mouse moves but nothing happens and I have to shut it down on power button.
After extensive troubleshooting not working I took it to repair, they tested my hardware and said it was perfect so at the end I did a clean install,ran repair permissions and brought my documents from my back up without using time machine nor migration assistant and installed all my apps from scratch.
It got much better, and first I thought it was a problem with Little Snitch app so I uninstalled it.
Also I had noticed that while using latest versions of Firefox the graphic display would have a strange glitch, such as brief instances of pixel artifacts that can also appear on my display when out of the browser.
- I turned off hardware acceleration on the browser's preferences and it seemed to disappear.
Although this freeze is still happening, specially when I wake up the mac from sleep and yesterday I got a black screen.
I think I may have a problem related to my ATI Radeon HD 2400 XT and I would like to ask if anyone here has a similar problem or if anyone knows about a fix .
I tried to update the ATi from apple’s site but the update’s installer said I don’t need the update.
iMac, Mac OS X (10.6.8)