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Wake from Sleep Display Freeze with HD 7770

Wake HD7770 Display Freeze

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#1
rayap

rayap

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Replaced my HD4850 with a HD7770. The old card worked perfectly in ML and Mavericks, except for the occasional ID modding.

With the new card, the first problem of booting from a GUID disk was overcome with a boot0af file. The second problem was when HWMonitor was launched, system crashes and  was overcome by yanking out GPUsensors. The third happened when waking up from sleep, an empty desktop bereft of icons appears and system freezes. This can be resolved by replacing the AMD kexts from ML but the white screen problem reappears as in ML.

Anyone out there having similar Wake from Sleep display freeze and system crash with HD7XXX cards in general or HD7770 in particular and is resolved.



#2
k3nny

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Hi, GPUSensors has a known bug causing the system to freeze when used with HD 7000 series. You should remove this plugin and rebuild caches.

#3
rayap

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Resolved. Guess the default Framebuffer caused it. Added back PEGP dsdt code (removed for old card) and set Chutoro. Thanks to an article by rampagedev.



#4
rayap

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With GPUSensors of HWSensors 5.2.779, GPU Die temp is OK and no crashes (though history graphs do not seem to draw).

 
Attached File  HWM.jpg   60.9KB   8 downloads






Also tagged with one or more of these keywords: Wake, HD7770, Display Freeze


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