UNSOLVED MMM-RemoteControl or vcgencmd Issue
I’m using a Raspberry Pi 4 Model B Rev 1.2 for my mirror. In attempting to shut off the hdmi to the mirror using both MMM-RemoteControl, or a bash file using vcgencmd display_power 0/1, the monitor turns back on within 12 seconds. Research indicates that it’s due to kernel control on the P1 4 model. Oddly, no one in the forum seems to be experiencing this. Any suggestions or tips that I can employ? Thank you.
@Stroke-0 my pi4 doesn’t have an issue
off command is
(sudo /usr/bin/vcgencmd display_power 0) >/dev/null
on command is
(sudo /usr/bin/vcgencmd display_power 1) >/dev/null
commands issued over ssh
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@Stroke-0 No Problems here. Im using MMM-RemoteControl and a PI4. I also use MMM-NewPir to turn the Monitor off.
bdeelman last edited by
I had the same issue, I use MMM-PIR-Sensor-Lite to switch the monitor off and on again. On the command line “vcgencmd display_power 0” does not work, the return is always: “display_power=1”.
I have tried a few things, they all did not work.
Edit the “config.txt” in the “/boot” directory.
“# Enable DRM VC4 V3D driver
And change “dtoverlay=vc4-kms-v3d” to “dtoverlay=vc4-fkms-v3d”.
There is a bug in the “vc4-kms-v3d” driver.
After changing in the “config.txt” “vcgencmd display_power 0” returns a “display_power=0”.
MMM-PIR-Sensor-Lite now works as desired.
@MiPraSo Well done! Thank you. Your solution works perfectly. I do not understand why others are not experiencing the same issue however, they now have a solution. Thank you, again.
@OberfragGER do you have it set for cec-client mode? it does all 4 approaches
@sdetweil I dont have any proble with CEC e.g…? Or do you just mistakenly quotet me…?
@OberfragGER no, I was just asking how you used NEW-Pir