I want to prevent my system (Ubuntu 22.04 on old HP laptop) from sleeping when closing the lid.

I already tried to edit my /etc/systemd/logind.conf :

[Login]

#NAutoVTs=6

#ReserveVT=6

#KillUserProcesses=no

#KillOnlyUsers=

#KillExcludeUsers=root

#InhibitDelayMaxSec=5

#UserStopDelaySec=10

#HandlePowerKey=poweroff

#HandleSuspendKey=suspend

#HandleHibernateKey=hibernate

HandleLidSwitch=ignore                 #

HandleLidSwitchExternalPower=ignore    #

HandleLidSwitchDocked=ignore           #

#HandleRebootKey=reboot

#PowerKeyIgnoreInhibited=no

#SuspendKeyIgnoreInhibited=no

#HibernateKeyIgnoreInhibited=no

LidSwitchIgnoreInhibited=no            #

#RebootKeyIgnoreInhibited=no

#HoldoffTimeoutSec=30s

IdleAction=ignore                      #

#IdleActionSec=30min

#RuntimeDirectorySize=10%

#RuntimeDirectoryInodesMax=400k

#RemoveIPC=yes

#InhibitorsMax=8192

#SessionsMax=8192

Before editing, my system slept as soon as the lid was closed; but now it takes a while before sleeping.
The odd thing is that when the lid isn't closed, the system stays awake as long as I want it to.

I don't know if any logs are going to be useful; or what the cause may be.

$ gsettings get org.gnome.settings-daemon.plugins.power lid-close-ac-action

suspend

And

$ gsettings get org.gnome.settings-daemon.plugins.power lid-close-battery-action

suspend