Thursday, October 4th 2007
Latest iMacs Suffer From Graphics Freeze
Apple's latest iMacs suffer seem to suffer from a graphics card problem that causes the computer screens to lock up. Numerous discussion threads on Apple's support forums report that, while the iMac display becomes unresponsive, the Mac itself appears to work normally. Apparently indicating the fault relates to the iMac's ATI Radeon HD card. iMac users suffering the screen freeze can get their Mac working again with a hard restart. Some users claim the fault appeared after they had installed recent software drivers (v1.1) for the Radeon HD card -- others claim that restoring the iMac to factory settings fixes the machine. While Apple is alleged to be aware of the issue, no fix for the flaw has yet been made available.
Source:
PC World
10 Comments on Latest iMacs Suffer From Graphics Freeze
And I have a Radeon 2400PRO from MSI in my PC, and occassionally I get screen freezes and activating the VPU recovery feature is the only thing that brings it back. So it could be inherent to the 2400 chipset. It'd be interesting to know whether the both the 2400 and 2600 equipped iMacs are having problems, or just one or the other.