Apple firmware update aims to fix iMac flickering
Early reports mixed, some saying it hasn't solved their 27-in. iMac's display problems
Computerworld - Apple issued a firmware update today for all 27-in. iMacs that is designed to fix display problems, including flickering screens, that have been reported by hundreds of recent buyers.
"The 27-inch iMac Graphics Firmware Update applies to the graphics firmware on ATI Radeon HD 4670 and 4850 graphics cards to address issues that may cause image corruption or the display to flicker," Apple said in the typically-terse description of the hotfix.
Display issues have plagued Apple's 27-in. iMac desktop computers since the new machines were Oct. 20. Users have reported cracked screens, a yellow tint in part of the display, and irritating flickers that come and go.
The problems prompted one Canadian Web developer to collate the complaints on a specially-built Web site, and may have been one of the reasons why Apple slapped a two-week shipping delay on 27-in. iMacs earlier this month.
A thread on Apple's support forum dedicated to the flickering screen problem boasts more than 1,500 messages and has a view count of over 244,000, making it the most-read of those on the iMac forum.
Apple didn't promise that the 638K update would solve everyone's display issues. "If your screen remains black after applying the updater or if you continue to experience image corruption or display flickering after successfully completing this update, contact AppleCare or an Apple Authorized Service Provider," the Apple advisory read.
In fact, just hours after the firmware update's release, user reports were mixed. Several reported that the update had not done the trick. "I have only experienced a mild flicker or two, but I can confirm that the firmware update does not seem to have solved the problem," said a user identified as "OSXAlex" on the support forum. "I noticed a flicker within 5 minutes of restarting after the update."
"Applied the update about an hour ago hoping it would fix my flickers," added "Paul_31" earlier Monday. "Sorry to report that it hasn't -- they seem to be less than they were but not cured."
However, others said that the flickers were now gone. "Just updated now, since then I didn't find any flickering/tearing of screen," countered "Ianod" this afternoon. "[But] it needs more time ... can't say anything at the moment."
The firmware update can be downloaded from Apple's site, or retrieved using Software Update on a 27-in. iMac equipped with one of the two ATI graphics cards.
Even after the update's release, Apple's online store continued to show a two-week shipping delay for all 27-in. iMacs.
Read more about Macintosh in Computerworld's Macintosh Topic Center.
- Deep Security +VMware vSphere with Operations Management Most midsize organizations are highly virtualized on VMware, and while this has produced significant savings, it also has created new challenges when it...
- Single-Vendor Security Ecosystems Offer Concrete Benefits Over Point Solutions IT security decision-makers from companies with 100 to 5,000 employees evaluates the current endpoint security solution market based on Forrester's own market data,...
- Best Practices for Security and Compliance with Amazon Web Services This paper will discuss what part of the shared responsibility equation customers are responsible for and what some of the recommended security practices...
- Case Study: Intuit Turns to Self-Service IT Intuit empowered its users to resolve their own IT issues with a consumer-like experience to free IT to focus on more strategic initiatives....
- Business-driven data protection Setting up data protection infrastructures with your organizations' core mission or business in mind is key. In this webinar, the ARCserve team will...
- On-Demand Webinar: Mind the Gap! Watch the webinar featuring Bob Janssen, CTO and Co-Founder of RES Software, to start building a solid foundation for business and IT to... All Macintosh White Papers | Webcasts