lock-screen
In 17.10 I've looked in Settings->Privacy, Screen Lock is off. In Power Blank Screen is off. Yet after some minutes of inactivity the screen just doesn't turn off, a lock screen appears that needs the mouse to pull up.
This is a PC in my house, I'm really not concerned that one of the dogs could wander by and see my screen. Is there a way to really turn off this lock screen? Turning the display off after some minutes would be fine.
Open System Settings, click Brightness & Lock and select a value for the screen turn off option, Turn screen off when inactive for:
Choose your time delay in the drop-down menu.
Check this question.
I use a 5 minute screen blank on 16.04, 17.10 and 18.04 beta, and it works as expected for me. You might also want to check launchpad bug reports, but I suspect that something else is causing problems with your system than the lock screen and blanking alone. For example, I wonder if some extension is crashing the gnome-shell (or something equiv if you are using a different desktop)?
You might check logs e.g. journalctl -b0 to look for suspicious errors in and around the time of the blank or the unlock. journalctl is better than dmesg for this because it provides human readable dates for logged events.
Best Answer
Post #10 here https://bbs.archlinux.org/viewtopic.php?id=171226 fixed it for me. I think I finally found a way to disable the inactivity curtain in gnome 3.10. Launch dconf-editor then drill down org > gnome > desktop> session. Find the key for idle-delay and change it's value to 0 .
Or you can do it in once step by running the command:
gsettings set org.gnome.desktop.session idle-delay 0
You'd think it would be easy to get rid of that annoying stuff...