https://qiita.com/ikesama200/items/f595293de82ddc9fa3f1
# ls -l /usr/share/gdm/dconf/90-debian-settings lrwxrwxrwx 1 root root 32 12月 19 2020 /usr/share/gdm/dconf/90-debian-settings -> /etc/gdm3/greeter.dconf-defaults # diff -u /etc/gdm3/greeter.dconf-defaults /tmp/ --- /etc/gdm3/greeter.dconf-defaults 2021-11-05 17:40:02.180899485 +0900 +++ /tmp/greeter.dconf-defaults 2021-11-05 17:39:25.480136115 +0900 @@ -38,10 +38,10 @@ [org/gnome/settings-daemon/plugins/power] # - Time inactive in seconds before suspending with AC power # 1200=20 minutes, 0=never -sleep-inactive-ac-timeout=0 +# sleep-inactive-ac-timeout=1200 # - What to do after sleep-inactive-ac-timeout # 'blank', 'suspend', 'shutdown', 'hibernate', 'interactive' or 'nothing' # sleep-inactive-ac-type='suspend' # - As above but when on battery -sleep-inactive-battery-timeout=0 +# sleep-inactive-battery-timeout=1200 # sleep-inactive-battery-type='suspend'
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