I am not sure when this first started, but I did notice this in the past couple of days. We are on JSS 9.93 and using El Capitan in our labs.
Since moving into these versions, we have noticed if the screen saver has been running for an hour or so, trying to wake it up will not work if using keyboard, mouse or trackpad. The only way to wake the system is to use the power button. Waking the system within 15 or 30 minutes of the screen saver beginning will wake normally.
Has anyone else experienced this or is there a new configuration profile setting that I might be over looking?
We have a custom configuration to set the login window screen saver that is installed after the initial imaging is done. This is a simple package that created a couple of years ago under Yosemite. The screen saver itself is not set.
I wonder if this could be the problem? I guess it only fails under our El Cap installations.
I was looking around in configuration profiles to set the screen saver, but I haven't been successful in finding the setting for screen savers in any profile setting. I saw the option for login window to set the setting there. I am going to attempt to set it as it isn't currently set. Maybe this will fix it.