Did the clean install of 11.7.10 on my 5,1 and so far so good, everything’s mostly working as expected. The one issue is if the machine sleeps/hibernates longer than a few hours, it won’t wake back up, either with input devices or the power button. Have to force-shut down. I’ve read of this issue with Ventura installations but not Big Sur. Checked the Energy Savings properties but any suspected settings are not checked. It works as expected in Mojave. The install is on a NVMe in Slot 2 PCIe in case that’s relevant.
Anyone else have this issue? I’d like to continue using sleep/hibernation overnight if possible. Energy rates are expensive in my area. I’m not versed enough to mess around with hibernation configurations on my own without a little guidance.
Hibernation was a mystery to me too, then I found the URL shown below, with several related settings. Unfortunately enough, unless you understand Japanese, it is difficult to read or translate. I have used these for several years and even now on a 2023 MBA. zero issues.
URL:
http://baqamore.hatenablog.com/entry/2019/02/08/222401
pmset -g Shows the settings you have set now.
sudo pmset -a hibernatemode 0 standby 0 autopoweroff 0
sudo rm /var/vm/sleepimage or sudo rm /private/var/vm/sleepimage
--Ignore any message saying there is no such file. Deleing this file also saves HD or SSD space, as the sleepimage file is the same size as the RAM in the machine.
Create a blanked zero-byte file so the OS cannot rewrite the file:
sudo touch /var/vm/sleepimage or sudo touch /private/var/vm/sleepimage
Make file immutable:
sudo chflags uchg /var/vm/sleepimage
(sudo chflags nouchg ... to revert)
or
sudo chflags uchg /private/var/vm/sleepimage
The sleep image file is actually in /private/var/vm/ but /var/vm/ is a symbolic link to that location.
sudo pmset -a proximitywake 0
sudo pmset -b tcpkeepalive 0
--This command may produce a warning saying some features may not work properly. This is fine, it simply disables Internet access during sleep. This is the same as disabling "PowerNap" Apple's badly implemented (demented?) attempt to have apps update themselves during sleep behind the users back.
sudo pmset -a standbydelaylow 86400
sudo pmset -a standbydelayhigh 86400
sudo pmset -a highstandbythreshold 0
Ignore any messages produced by these last 3 commands
If necessary;
sudo pmset restoredefaults