[SOLVED] monitor enter suspend mode with kernel 6.2.16-4-pve

[mediaklan]

Hello everyone,
I'm using proxmox as a workstation (xfce/openbox), so I have a display connected for various purposes. Since the latest kernel upgrade (6.2.16-4-pve), my monitor is entering suspend mode (after 10 min or so), and it's a behavior I would gladly prevent.
What I tried so far :

systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
xset -dpms

... But it's not working. Moving the cursor or hitting the keyboard can successfully wake up the thing, but it's annoying as hell.

Any idea where or what I should start looking please ?

 

[mediaklan]

Just when I was about to give up, it's solved. But I'm not too sure what was the effective solution.
What I've done, in this order :
# remove upower service (I think it's most likely the solution)
apt remove upower
# add this in my .bashrc (debian wiki : https://wiki.debian.org/Suspend)
xset dpms 0 0 0 && xset s noblank && xset s off
# add this in /etc/systemd/sleep.conf.d/nosuspend.conf (debian wiki : https://wiki.debian.org/Suspend)

 [Sleep]
AllowSuspend=no
AllowHibernation=no
AllowSuspendThenHibernate=no
AllowHybridSleep=no

And reboot. Proxmox is running for about +20 min now without the screen going into sleep.