And apparently when you disable screen blanking again, you get this value in .config/wayfire.ini: dpms_timeout=-1 Gilbert On 2023-10-18 3:06 p.m., Gilbert Detillieux wrote:

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

I use my Pi 400 just as a test platform before deploying any new OS version to other Pi's I use for other purposes. I have a Pi 4 that I use for digital signage (just running chromium in kiosk mode), and am anticipating upgrading it to the latest OS, but wanted to make sure there's be no glitches with using Wayland. (Although I usually disable screen blanking for that, I do blank the screen there too... outside of office hours. So my previous post is relevant to this application.) I also have a bunch of original Pi Model B's, that I use for temp/humidity monitoring. I don't need anything fancy from the OS (and certainly no GUI), but I do want to use a supported OS, so I try to use the oldstable release on those as much as possible. Gilbert On 2023-11-04 1:41 p.m., Chris Audet wrote:

I gave this a try on my Pi 3 Model B, but it turns out this model only supports x11 for now (I tried "raspi-config > Advanced Options > Wayland" and reboot but I think it's still using x11).

Just curious, what application are you running on the Pi?

I mostly use them for digital signage with FullPageOS, so haven't used the screen blanking feature until you mentioned this issue.

chrisa@raspberrypi:~ $ cat /etc/os-release PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"

chrisa@raspberrypi:~ $ cat /proc/cpuinfo | grep Model Model           : Raspberry Pi 3 Model B Plus Rev 1.3

chrisa@raspberrypi:~ $ echo $XDG_SESSION_TYPE x11

Relevant KB: https://www.raspberrypi.com/documentation/computers/configuration.html#wayla... <https://www.raspberrypi.com/documentation/computers/configuration.html#wayland> "In the current version of Raspberry Pi OS Bookworm, the Raspberry Pi 4 and Pi 400 use Wayland by default; other models of Raspberry Pi use X11 by default."

On Wed, Oct 18, 2023 at 3:18 PM Gilbert Detillieux <Gilbert.Detillieux@umanitoba.ca <mailto:Gilbert.Detillieux@umanitoba.ca>> wrote:

And apparently when you disable screen blanking again, you get this value in .config/wayfire.ini:

dpms_timeout=-1

Gilbert

On 2023-10-18 3:06 p.m., Gilbert Detillieux wrote: > 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

-- Gilbert Detillieux E-mail: Gilbert.Detillieux@umanitoba.ca Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: 204-474-8161 Winnipeg MB CANADA R3T 2N2 For best CS dept. service, contact <cs-support@lists.umanitoba.ca>.