iMac firmware update fails to fix flickering problems
Most commenters on Apple's support forum say the update didn't solve the problems with their 27-in iMacs
Computerworld - Owners of Apple's 27-in. iMac have reported that the firmware update released earlier this week has not solved their flickering display problems, according to Apple's own support forum.
Apple issued the firmware update Monday, saying that it was designed to "address issues that may cause image corruption or the display to flicker" on 27-in. iMacs equipped with the ATI Radeon HD 4670 and 4850 graphics cards.
But users continue to complain on Apple's support forum that the update was no fix for them.
"Flickering/tearing has been occurring occasionally (once a day maybe), so I downloaded and installed the firmware update, but I'm still experiencing the same problem," said a user identified as "gjdhks999" today on the massive thread dedicated to the flickering issue. That thread lists more than 1,600 messages and has a view count of more than 263,000, making it the most-read of those on the iMac forum.
"I, like everyone else, has verified that the firmware update does NOT fix the issue," added Joe Liu on the same thread. "Strangely enough I seem to be able to recreate the issue by doing the following things: 1. Use computer all day. 2. Turn off overnight. 3. Turn on in morning -- within 90 minutes it's flickering."
Some users, in fact, claimed that the firmware update had made their iMac start flickering. "Ran the firmware update last night and had no flickering," said Patrick Seguin on Tuesday. "Today I have flickering galore."
Others, however, said the update had at least reduced the flickering. One, dubbed "smakus" on the thread, guessed that the firmware update had reduced the clock speed of the ATI's card's graphic processor. "The power supply and video card have drastically reduced in temperature," smakus reported. "The flickering is still present, although it happens once, then immediately goes away, whereas before, it would flicker then steadily escalate, getting worse and worse until the blackouts started. This tells me one thing. They most likely de-clocked the video card to produce less heat, or are somehow ramping it down until the power is needed."
Display issues have plagued Apple's 27-in. iMac desktop computers since the new machines debuted Oct. 20. Users have reported cracked screens, a yellow tint in part of the display, irritating flickers and black bands.
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.
That Web developer, Scott Pronych of Nova Scotia, who created the Apple iMac (Fall 2009) Issues site to track the problems, has added a "Flickering after Firmware Update" category to the site. As of mid-day Wednesday, Pronych had logged 26 accounts of the firmware failing to fix the flickering problem.
- 15 Non-Certified IT Skills Growing in Demand
- How 19 Tech Titans Target Healthcare
- Twitter Suffering From Growing Pains (and Facebook Comparisons)
- Agile Comes to Data Integration
- Slideshow: 7 security mistakes people make with their mobile device
- iOS vs. Android: Which is more secure?
- 11 sure signs you've been hacked
- Pay-as-you-Grow Data Protection: IBM Tivoli's Full-featured Data Protection Suite for Small to Medium Businesses IBM Tivoli Storage Manager Suite for Unified Recovery gives small and medium businesses the opportunity to start out with only the individual solutions...
- Streamline Data Protection with IBM Tivoli Storage Manager Operations Center IBM Tivoli Storage Manager (TSM) has been an industry-standard data protection solution for two decades. But, where most competitors focus exclusively on Backup...
- Simplify and Consolidate Data Protection for Better Business Results Learn about IBM® Tivoli® Storage Manager Operations Center, which provides advanced visualization, built-in analytics and integrated workflow automation features that leapfrog traditional backup...
- HP HAVEn: See the big picture in Big Data HP HAVEn is the industry's first comprehensive, scalable, open, and secure platform for Big Data. Enterprises are drowning in a sea of data...
- Meg Whitman presents Unlocking IT with Big Data During this Web Event you will hear Meg Whitman, President and CEO, HP discuss HAVEn - the #1 Big Data platform, as well...
- The New Way to Work Knowledge Vault This Knowledge Vault focuses on how, in today's increasingly virtual world, it's more important than ever to engage deeply with employees, suppliers, partners,... All Macintosh White Papers | Webcasts