4farrell

Thanks Hervé. I tried the command to view the assertionslog, saw tons of fatal error created by bluetool. So I disabled the BCM bluetooth kexts in config.plist. seems solved this problem. After close the lid, the system will goes to sleep. And wake with no issues. By clicking the sleep button still the same, but it works for me. I can take that hah, thanks.

Hi Jake: I tried to disable Hibernation as the result looks like this: And then I unplug all usb device even the AC adapter, reboot, and then try to sleep. The screen will become black, but the LED of keyboard and power button still on, after 6 - 7 seconds, the screen lights up and shows the login screen I teseted for times, reboot -- login -- sleep, all the same result.

Hi Jake: Thanks for the reply. Yes, I have a TP-Link USB wireless card, and I tried to turn of those options. Both Wake on AC. USB. USB-C Dock. And whole wireless tab. Still the same Guess I got unlucky

Hi friends: I have a latitude 7280 and yesterday, I finally get a macOS Monterey successfully installed. But I'm facing a new problem with sleep/wake. After I click  -- sleep, the screen will become black, and light up after a few sec at the login screen. Or if I close the lid, same situation, after a few sec, the fan start up and it won't sleep. I tried to use Lorys EFI to install, it won't work, and so I found one in this site and it works. After installation, I followed Lorys guide, already set the CFG lock disabled and modified DVMT to MAX. Please have a look at my EFI and thank you so much. Specs: i5-7300u Memory: 16G 2133 DDR4 SSD: WD SN550 BIOS Version: 1.23.0 The Kext folder is so big it can't be uploaded here. So here's the pic of this folder ioreg.ioreg EFI.zip