I cannot disable screen blanking with MagicMirrorOS

karsten13 · Mar 29, 2025, 8:03 PM

I build another new labwc image. You can revert the changes done to MM_IMAGE and the on-/offCommand in your setup.

The new karsten13/labwc:develop now runs labwc with pid=1 (I thought that was already the case) and additionally kills labwc if the wlr-randr command fails with failed to connect to display.

Now the container will restart if labwc is terminated inside the container. This does not address the root issue but should be a good workaround (hopefully).

So please do again a docker compose pull && docker compose up -d to get the latest changes …

smegbadger · Mar 31, 2025, 8:29 AM

@karsten13, thank you for this. It worked well overnight last night. One question: when the wlr-randr command fails, the labwc container is then killed and then automatically restarts - will the screen be turned on then until the next PIR activity and subsequent timeout of MMM-Universal-Pir?

Steve

karsten13 · Mar 31, 2025, 5:25 PM

@smegbadger said in I cannot disable screen blanking with MagicMirrorOS:

the labwc container is then killed and then automatically restarts - will the screen be turned on then until the next PIR activity and subsequent timeout of MMM-Universal-Pir?

yes, I tested this by killing and restarting the labwc-container from outside.

Not nice but I have no idea how to solve this.

smegbadger · Mar 31, 2025, 5:39 PM

@karsten13 I thought that would be the case. I tried changing the initial RANDR_PARAMS="--output HDMI-A-1 --transform 90" in the .env file to RANDR_PARAMS="--output HDMI-A-1 --off" so that the MMM-Universal-Pir module would be responsible for the first switch on of the display but then I got no display on restart at all.

Steve

karsten13 · Mar 31, 2025, 6:19 PM

@smegbadger

had to write it down:

labwc	after start			wlr-randr --output HDMI-A-1 --transform 90
mm	starts and mm is displayed
mm	offCommand			wlr-randr --output HDMI-A-1 --off
mm	still up but not displayed
labwc	fails after a while, killed
labwc	after start			wlr-randr --output HDMI-A-1 --transform 90
mm	still up and displayed again
mm	offCommand			wlr-randr --output HDMI-A-1 --off
...

so another idea would be to execute the command defined in RANDR_PARAMS only if the display is not switched off. Will check if I can get this information …

karsten13 · Apr 2, 2025, 8:13 PM

@smegbadger

I think I have now a working solution for this.

For testing

use LABWC_IMAGE="karsten13/labwc:develop" in .env.

In /opt/mm do

# check if worktree is clean
git status
# switch to develop branch
git switch develop
# pull
git pull

Go to /opt/mm/run and execute docker compose pull and docker compose up -d --force-recreate.

With these changes the screen should still be blank after a restart of the labwc-container if the screen was blank before. Let me know if it works.

smegbadger · Apr 3, 2025, 7:52 AM

@karsten13 unfortunately that didn’t work.
In the morning the screen was off and could not be restored with docker rm -f labwc && docker compose up -d or docker compose up -d --force-recreate. In both cases the console briefly came back and then the the monitor slept again. Only when i when into the labwc container and did wlr-randr --output HDMI-A-1 --on --transform 90 did the display return. At that point the MMM-Universal-Pir started counting down too and it works as normal.

magicm@magicmirror:/opt/mm/run $ docker rm -f labwc && docker compose up -d
labwc
[+] Running 2/2
 ✔ Container mm     Running                                                                                        0.0s
 ✔ Container labwc  Started                                                                                        0.5s
magicm@magicmirror:/opt/mm/run $ docker compose up -d --force-recreate
[+] Running 2/2
 ✔ Container mm     Started                                                                                        1.7s
 ✔ Container labwc  Started                                                                                        1.8s
magicm@magicmirror:/opt/mm/run $
     >>> still no screen output <<<
magicm@magicmirror:/opt/mm/run $ docker exec -it labwc bash
pi@3f4fb5c07c91:/$ wlr-randr
HDMI-A-1 "Raspberry PI RPI MON156 81005568472 (HDMI-A-1)"
  Make: Raspberry PI
  Model: RPI MON156
  Serial: 81005568472
  Physical size: 350x190 mm
  Enabled: no
  Modes:
    1920x1080 px, 60.000000 Hz (preferred)
    1920x1080 px, 60.000000 Hz
    1920x1080 px, 59.939999 Hz
    1920x1080 px, 50.000000 Hz
    1920x1080 px, 48.000000 Hz
    1920x1080 px, 47.952000 Hz
    1280x720 px, 60.000000 Hz
    1280x720 px, 60.000000 Hz
    1280x720 px, 59.939999 Hz
    1280x720 px, 50.000000 Hz
    1280x720 px, 48.000000 Hz
    1280x720 px, 47.952000 Hz
    720x576 px, 50.000000 Hz
    720x480 px, 60.000000 Hz
    720x480 px, 59.939999 Hz
    640x480 px, 60.000000 Hz
    640x480 px, 59.939999 Hz
    640x480 px, 59.939999 Hz
pi@3f4fb5c07c91:/$ wlr-randr --output HDMI-A-1 --on --transform 90
     >>> screen returns <<<
pi@3f4fb5c07c91:/$

Please check I did the pull etc correctly

magicm@magicmirror:/opt/mm $ git status
On branch master
Your branch is up to date with 'origin/master'.

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   install/install.sh

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        install/install.sh.old
        run/douglas.env

no changes added to commit (use "git add" and/or "git commit -a")
magicm@magicmirror:/opt/mm $ git switch develop
M       install/install.sh
branch 'develop' set up to track 'origin/develop'.
Switched to a new branch 'develop'
magicm@magicmirror:/opt/mm $ git pull
remote: Enumerating objects: 32, done.
remote: Counting objects: 100% (32/32), done.
remote: Compressing objects: 100% (22/22), done.
remote: Total 22 (delta 14), reused 0 (delta 0), pack-reused 0 (from 0)
Unpacking objects: 100% (22/22), 2.66 KiB | 247.00 KiB/s, done.
From https://gitlab.com/khassel/magicmirror
   f4542dd..4891458  develop    -> origin/develop
   a4a4748..c4bb59c  master     -> origin/master
 * [new tag]         v2.31.0    -> v2.31.0
Updating f4542dd..4891458
Fast-forward
 .gitlab-ci.yml            |  2 +-
 build/labwc/Dockerfile    |  2 +-
 build/labwc/entrypoint.sh | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++--------
 run/includes/labwc.yaml   |  4 +++-
 run/original.env          |  4 ++--
 5 files changed, 57 insertions(+), 13 deletions(-)
magicm@magicmirror:/opt/mm $ cd /opt/mm/run
magicm@magicmirror:/opt/mm/run $ docker compose pull
[+] Pulling 15/15
 ✔ labwc Pulled                                                                                                  107.9s
   ✔ f07a03696dcc Already exists                                                                                   0.0s
   ✔ 98d9f29a8bdf Pull complete                                                                                  106.0s
   ✔ 6c9aae6d02f4 Pull complete                                                                                  106.1s
   ✔ 9d496899b308 Pull complete                                                                                  106.2s
 ✔ magicmirror Pulled                                                                                            171.5s
   ✔ d9b636547744 Already exists                                                                                   0.0s
   ✔ 2fb5eed0caf7 Already exists                                                                                   0.0s
   ✔ f51205ec4ac4 Already exists                                                                                   0.0s
   ✔ d7b57be0135b Already exists                                                                                   0.0s
   ✔ 813d7d6819ab Already exists                                                                                   0.0s
   ✔ 9e1af87e1f78 Pull complete                                                                                    1.1s
   ✔ 27001e96a2b0 Pull complete                                                                                    1.3s
   ✔ deb26dbf1268 Pull complete                                                                                  110.8s
   ✔ 1b7abece8518 Pull complete                                                                                  169.7s
magicm@magicmirror:/opt/mm/run $ docker compose up -d --force-recreate
[+] Running 2/2
 ✔ Container labwc  Started                                                                                       24.9s
 ✔ Container mm     Started

Steve

karsten13 · Apr 4, 2025, 7:32 PM

@smegbadger said in I cannot disable screen blanking with MagicMirrorOS:

Please check I did the pull etc correctly

yes

this seems to become a never ending story …

With the last changes I wrote the display state (on or off) to a temp file so the labwc container knows the last state even after a restart. Problem now is the mm container, here the logs after restart:

> magicmirror@2.32.0-develop start:wayland
> WAYLAND_DISPLAY="${WAYLAND_DISPLAY:=wayland-1}" ./node_modules/.bin/electron js/electron.js --enable-features=UseOzonePlatform --ozone-platform=wayland

[2025-04-04 21:19:30.050] [LOG]   Starting MagicMirror: v2.32.0-develop
[2025-04-04 21:19:30.084] [LOG]   Loading config ...
[2025-04-04 21:19:30.087] [LOG]   config template file not exists, no envsubst
[2025-04-04 21:19:30.608] [INFO]  Checking config file /opt/magic_mirror/config/config.js ...
[2025-04-04 21:19:30.674] [INFO]  Your configuration file doesn't contain syntax errors :)
[2025-04-04 21:19:30.675] [INFO]  Checking modules structure configuration ...
[2025-04-04 21:19:30.778] [INFO]  Your modules structure configuration doesn't contain errors :)
[2025-04-04 21:19:30.780] [LOG]   Loading module helpers ...
[2025-04-04 21:19:30.786] [LOG]   Initializing new module helper ...
[2025-04-04 21:19:30.788] [LOG]   Module helper loaded: MMM-Universal-Pir
[2025-04-04 21:19:30.788] [LOG]   No helper found for module: alert.
[2025-04-04 21:19:30.793] [LOG]   Initializing new module helper ...
[2025-04-04 21:19:30.793] [LOG]   Module helper loaded: updatenotification
[2025-04-04 21:19:30.794] [LOG]   No helper found for module: clock.
[2025-04-04 21:19:30.924] [LOG]   Initializing new module helper ...
[2025-04-04 21:19:30.925] [LOG]   Module helper loaded: calendar
[2025-04-04 21:19:30.926] [LOG]   No helper found for module: compliments.
[2025-04-04 21:19:30.927] [LOG]   No helper found for module: weather.
[2025-04-04 21:19:31.034] [LOG]   Initializing new module helper ...
[2025-04-04 21:19:31.034] [LOG]   Module helper loaded: newsfeed
[2025-04-04 21:19:31.035] [LOG]   All module helpers loaded.
[2025-04-04 21:19:31.043] [LOG]   Starting server on port 8080 ...
[2025-04-04 21:19:31.046] [WARN]  You're using a full whitelist configuration to allow for all IPs
[2025-04-04 21:19:31.681] [LOG]   Server started ...
[2025-04-04 21:19:31.683] [LOG]   Connecting socket for: MMM-Universal-Pir
[2025-04-04 21:19:31.684] [LOG]   Connecting socket for: updatenotification
[2025-04-04 21:19:31.685] [LOG]   Starting module helper: updatenotification
[2025-04-04 21:19:31.686] [LOG]   Connecting socket for: calendar
[2025-04-04 21:19:31.687] [LOG]   Starting node helper for: calendar
[2025-04-04 21:19:31.688] [LOG]   Connecting socket for: newsfeed
[2025-04-04 21:19:31.689] [LOG]   Starting node helper for: newsfeed
[2025-04-04 21:19:31.690] [LOG]   Sockets connected & modules started ...

The container is running but electron not (the line Launching application. is missing), I think it is waiting for an active display …

The Pir-Sensor which would active the screen again is running inside mm (which is not really running).

So I have no idea at the moment, maybe we have to live with the situation before, where after restart we need a sensor interval before the screen is blanked again.

smegbadger · Apr 5, 2025, 8:42 PM

@karsten13 thank you for all the effort you are putting into this issue. I agree, let’s go back to the version that will kill and restart the container if the display doesn’t respond to wlr-randr (and then waits for a MMM-Universal-Pir cycle to sleep it again).

Steve

karsten13 · Apr 5, 2025, 8:42 PM

@smegbadger said in I cannot disable screen blanking with MagicMirrorOS:

@karsten13 thank you for all the effort you are putting into this issue.

Well, it is a pleasure to have such a good tester as you

I agree, let’s go back to the version that will kill and restart the container if the display doesn’t respond to wlr-randr (and then waits for a MMM-Universal-Pir cycle to sleep it again).

for now I did exactly this, but this issue is still working in my brain …

So to revert all the changes done before:

cd /opt/mm
git switch master
git pull

Change the images back to latest in .env:

MM_IMAGE="karsten13/magicmirror:latest"
LABWC_IMAGE="karsten13/labwc:latest"

Get new images and restart:

cd /opt/mm/run
docker compose pull
docker compose up -d

Last point: You should add the --transform 90 to the onCommand of the MMM-Universal-Pir config:

                {
                        module: "MMM-Universal-Pir",
                        position: "top_right",
                        config: {
                                deactivateDelay: 30000,
                                onCommand: "wlr-randr --output HDMI-A-1 --transform 90 --on",
                        }
                }