I have the same issue.
22.04 LTS (though Pop!_OS 22.04) Display server: X11 Display driver: Nvidia 515.48.07
gjs is already installed.
OS is installed on an iMac 14,2 from late 2013 (not dual boot, Linux is the sole operating system)
‘xset dpms force off’ does not turn off the monitor, it just blanks the screen.
I have the same issue.
22.04 LTS (though Pop!_OS 22.04)
Display server: X11
Display driver: Nvidia 515.48.07
gjs is already installed.
OS is installed on an iMac 14,2 from late 2013 (not dual boot, Linux is the sole operating system)
‘xset dpms force off’ does not turn off the monitor, it just blanks the screen.