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This is my EFI sleep work , shutdown work hardware acceleration work

Hi guys problem solved ,now im using Display Port for one monitor with 2560x1440 and for smaller one HDMI (1920x1200). Interesting i have my office machine Mac pro 6.1 and i tested all various cable hdmi only alow me 1920x1200, thunderbolt to dvi 1920x1200 Thunderbolt to dp 2560x1440

Still no luck with dual monitor :(

Today i will try also these method .Thank you for fast respond :)

Hi , i already replace my EFI with your and everything work perfect SLEEP/WAKE and SHUTDOWN also but i have one major problem with using two monitors. my GPU RX570 sapphire pulse 4gb with only 3 ports one DVI-D one HDMI and one DP. HDMI work ok with 1920x1200 res monitor but my other monitor...

Hi ,thank you for good solution HDMI now work but with only 1920x1080 but my display have 2566x1440 any solution for this Best regards

Hi guys , i'have already installed High Sierra 10.13.6 with GTX480(working super) and now i'm trying to change with RX 570 i,m trying with/without Lilu+Weg kext also with all inject options inject Ati , inject RadeonDeInit and all combination but system show apple logo and loading then...

Finally i found right kext without problem when overload network with largefile BCM5722D-v2.3.6-Yos_binary.kext

Hi together, Today I tried again installing high sierra and everything is fine. Only two problems found 1. Wireless mouse stope work when open app store (reinstall dongle and work again) 2. Gigabit controler still drop conection ,this is make me angry (bcm5722d)

this is from my dell t5500 cpu x5550 10gb ram gpu-gtx480

Hi , i have Dell t5500 ant successfully instaled High Sierra but only problem is network adapter after high load of big files it drop network conetctions and need restart to work again (for network i use BCM5722D.kextt ) Any ideas ?

thank you awesome

hi , can you make step by step guide for dell T5500