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bluelovemac

bluelovemac

Member Since 14 Dec 2008
Offline Last Active Sep 13 2015 04:23 AM
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Posts I've Made

In Topic: Lenovo ThinkPad T420 with UEFI Only

05 September 2015 - 04:46 PM

hmm. with the new dsdt, did you upgrade/re-install the ACPIBacklight kext?

is it off/black or backlight dark ... can you try to increase the brightness with the Pause key?/ 

 

it is black,just like the graphics card has no Driver..

 

may be i have something wrong when upgrade the new kexts..

 

after reinstall the ACPIBacklight.kext and rebuild kext cache, no problem with  the new dsdt..

 

great thanks .

In Topic: Lenovo ThinkPad T420 with UEFI Only

05 September 2015 - 12:17 PM

@tluck 

thanks 

 

when i use the new version, after reboot i just get a black screen,i can't see anything。i solve the problem by replace the dsdt to the old version..

the attach file is the new dsdt and old dsdt.and system is 10.10.5 (T420 1600*900)

 

 

 

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