Now that I tried to make it happen manually (sleep 1 && xset dpms force off), it didn't show itself; though for the last few days, it's always happened after X's 10-minute delay DPMS.
Now that I tried to make it happen manually (sleep 1 && xset dpms force off), it didn't show itself; though for the last few days, it's always happened after X's 10-minute delay DPMS.