Genuine Apple Ati Radeon Hd 5770 1gb Graphics Card For Mac

0519
  1. Ati Radeon Hd 5770 1024 Mb Graphics
Card

I've got a 27' Cinema Display that is driven by the Pro/HD 5770, and although it doesn't black out, on native resolution (2560 x 1440) it flickers on the bottom half of the screen when it wakes from sleep. After that, it works o.k. It's fine on 10.6.7, but flickers on 10.6.8 and 10.7 (Lion).

I have a mac pro 1.1 and an ati radeon 5770 HD they works fine before the mac os x update 10.6.8. Now my apple display 30' is black. Help me please! Genuine Apple ATI Radeon HD 5770 1GB Graphics Card for Mac Pro (MC742ZM/A) Email to friends Share on Facebook - opens in a new window or tab Share on Twitter - opens in a new window or tab Share on Pinterest - opens in a new window or tab.

I phoned the Apple Support, but they hadn't heard of the issue (surprise surprise!), but I've heard from someone else that has two 27' displays with the HD 5770, and they both flicker on wake-up. Today I went to the Apple Store, and checked the one on display, and that flickers as well. I tried the MacMini with 27' display, and the 27' iMacs, but they were o.k. This points to the software and/or the graphics card being at fault.

Ati Radeon Hd 5770 1024 Mb Graphics

I've written to AMD (that produce ATI graphics cards) and am waiting for feedback. In the meantime I will contact Apple Support again to tell them it isn't just my machine that has problems. Pitchwheel for mac. Suggest everyone else does the same. In the meantime, I've rolled back to 10.6.7 (and loving it!). Apple Footer • This site contains user submitted content, comments and opinions and is for informational purposes only.

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This entry was posted on 19.05.2016.