How can I avoid having to enter password to wake up sleeping display every time? (touch pad has never worked)
"Prevent automatic sleeping when the display is off" is enabled in Energy settings. I'm not seeing all the options shown in online Mac User Guide for Lock screen.
iMac 24″
Are you seeing a grayed out "Immediately" in the Lock Screen Settings..?
If so, then the default setting for the iPhone Mirroring App is preventing you from changing that setting.
To fix, open the iPhone Mirroring App on your iMac and change the setting to "Ask every time"
Then go back to the Lock Screen Settings and re-set a Time or set to Never.
Are you seeing a grayed out "Immediately" in the Lock Screen Settings..?
If so, then the default setting for the iPhone Mirroring App is preventing you from changing that setting.
To fix, open the iPhone Mirroring App on your iMac and change the setting to "Ask every time"
Then go back to the Lock Screen Settings and re-set a Time or set to Never.
Change Lock Screen settings on Mac - Apple Support
To see the appropriate guidance for your Mac, make sure you select your appropriate macOS version in the choice box near the top of the above linked page.
Thanks! I never would have guessed it and hadn't noticed the coincidence of timing. It's now fixed.
You're welcome.
Display sleeps too often, requires PW to wake
