Ninno Posted February 15, 2019 Share Posted February 15, 2019 I have successfully installed High Sierra and it works all but I have a huge slowness in the ShutDown phase of the machine following activation of Intel iSync, can you help me to understand where I was wrong? I enclose complete configuration. Thank you Send me Ginos-iMac.zip Link to comment https://www.insanelymac.com/forum/topic/337644-gigabyte-ga-h270-hd3-very-slow-shutdown-high-sierra/ Share on other sites More sharing options...
MaLd0n Posted February 15, 2019 Share Posted February 15, 2019 use only it CLOVER.zip don't install nothing in l/e or s/l/e Link to comment https://www.insanelymac.com/forum/topic/337644-gigabyte-ga-h270-hd3-very-slow-shutdown-high-sierra/#findComment-2664144 Share on other sites More sharing options...
Ninno Posted February 16, 2019 Author Share Posted February 16, 2019 Thanks a lot, now the shutdown is perfect, 1-2 seconds. But the startup is now slow due to an error on the GFX firmware, how can I solve it? P.S. How can I see which kext are installed in the l / and or s / l / e directories and possibly remove them? I'm not sure I've ever copied them to these folders. Thanks again Photos.zip Link to comment https://www.insanelymac.com/forum/topic/337644-gigabyte-ga-h270-hd3-very-slow-shutdown-high-sierra/#findComment-2664301 Share on other sites More sharing options...
Ninno Posted February 16, 2019 Author Share Posted February 16, 2019 I added -disablegfxfirmware in /Boot/Arguments And now the startup is ok too Link to comment https://www.insanelymac.com/forum/topic/337644-gigabyte-ga-h270-hd3-very-slow-shutdown-high-sierra/#findComment-2664309 Share on other sites More sharing options...
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