Answering my own question, it would appear that you can set screen blanking (DPMS) in the command-line/TUI tool, raspi-config...
pi@raspberrypi:~ $ sudo raspi-config pi@raspberrypi:~ $ tail -2 .config/wayfire.ini [idle] dpms_timeout=600 pi@raspberrypi:~ $
In raspi-config, select "2 Display Options", then "D2 Screen Blanking", then enable. The above change to .config/wayfire.ini seems to be the net effect. The timeout is set to 600 seconds, and could probably be changed to any reasonable value, and likely 0 would disable it again.
Funny that there wasn't a more obvious way to set this, via GUI screen preferences.
Gilbert
On 2023-10-18 1:03 p.m., Gilbert Detillieux wrote:
So, with all the hype around the new Raspberry Pi 5 (still waiting for availability), and the new OS version, I thought I'd give the OS a try on my Pi 400, and see how things look with the new Wayland-based GUI.
One strange thing I noticed (other than the slight increase in CPU use and slightly higher CPU temperature) is that there's no screen saver/blanker enabled by default. Stranger still is there doesn't seem to be any way to enable it, at least not that I've been able to find.
The old X11/Xorg-based screen savers definitely don't work with Wayland, and I don't want to turn off my monitor (and have to remember to do so) every time I'm done using the Pi. So, does anyone know how I can enable screen blanking in Wayland? (Preferably with Pi OS and/or Debian 12 bookworm, but any Wayland-related info would be appreciated.)
If that doesn't work, I may find myself reverting back to Xorg.
Thanks, Gilbert