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E5470: Help installing El Capitan


mdub

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just wanted to say I got MacBookPro13,1 working with generated SSDT in 10.12.3. I added that system definition PlatformSupport.plist in /System/Library/CoreServices and it works. Battery life isn't great at around 4 hours, but CPU/GPU seem to be scaling properly.

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Looks like I spoke too soon, MacBookPro13,1 does not have correct CPU speeds for my 6820HQ.

I tried using Piker's freqvectors script to change cpu vectors to MacBookPro13,3 (which matches my CPU) but this results in kernel panic (see attached pic). any idea what could cause this? HWP is not a solution for this model as graphics are not properly accelerated/power managed.

 

on a side note  I'm kinda confused why lots of people say to try different SMBIOS definitions to generate an SSDT when only 1 (MacBookPro13,3) matches my CPU and will properly implement CPU power management. Seems to me that SMBIOS is not arbitrary and that the really important thing is getting the correct frequency vectors to work.

 

update: just saw this on Piker's blog "Update: HWP is set to 1 (enabled) in the FrequencyVectors data in the plists."

if HWP is enabled in the frequencyvectors data of Mac-A5C67F76ED83108C.plist (MacBookPro13,3 plist) then how would I disable it? Having HWP + generated SSDT will cause KP so maybe this is the problem? Here's the hex data:

 

 

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Ok, I managed to have a workaround the HDMI issue:

After a cold start, log in and then sleep the laptop. Wake it up and plug the External Monitor to HDMI, now both screens work and sound work as well.

 

Hope this help someone.

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