Apple Addresses Graphics Issues on Mid 2011 iMacs With Firmware Update
Apple today released iMac Graphic FW Update 2.0, a firmware update to addresses graphics issues on the company's latest iMac models.
About iMac Graphic FW Update 2.0
This firmware update fixes an issue that in rare cases may cause an iMac to hang during startup or waking from sleep.
Do not shut off the power on your iMac during this update. Loss of power could result in your iMac failing to start up.
Apple has also posted a support document noting that the update addresses issues arising as a white screen during startup or vertical lines on the screen while in use.
In certain circumstances, your iMac (Mid 2011) may become unresponsive on startup, with a white or gray background on the display. You may also notice vertical lines on the display while using your iMac.
iMac Graphic FW Update 2.0 weighs in at 699 KB and requires Mac OS X 10.6.7.
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Top Rated Comments
yes.
Do not do this:
when updating firmware. The worst thing you can do when updating firmware is to not let it cook through, or interrupt the installation, power down and back up. That is just asking for a brick.
Don't second guess the firmware upgrade. Let it do its thing... it will sometimes take awhile, reboot itself to apply the upgrade, and then reboot itself again. The last thing in the world you wanna do is "hey... maybe this isn't working right... I'll try a hard power down and see if that fixes it." Major facepalm there.
yes, i have the 3.1 GHz i5 with 6970M and i got the update.