<![CDATA[suddenly the screen can't turn on]]>I am using the following command to turn off and on the screen at the scheduled time, it has been working fine for years until the last few weeks, the screen will be on using --auto command but its blank, if I quickly do the --off again, wait until the screen go to sleep mode itself and run --auto, the screen will start without issue, since this problem is unpredictable, would it caused by hardware issue? would it be the cable or the screen?

export DISPLAY=:0 && xrandr --output HDMI-1 --off
export DISPLAY=:0 && xrandr --output HDMI-1 --auto

]]>https://forum.magicmirror.builders/topic/18362/suddenly-the-screen-can-t-turn-onRSS for NodeFri, 15 May 2026 07:18:06 GMTTue, 09 Jan 2024 00:19:14 GMT60<![CDATA[Reply to suddenly the screen can't turn on on Wed, 10 Jan 2024 13:11:54 GMT]]>@lkthomas yes @schris88 gave you a solution that you can’t use.

]]>https://forum.magicmirror.builders/post/114297https://forum.magicmirror.builders/post/114297Wed, 10 Jan 2024 13:11:54 GMT<![CDATA[Reply to suddenly the screen can't turn on on Wed, 10 Jan 2024 13:09:00 GMT]]>@sdetweil I am using RPi 3B+

]]>https://forum.magicmirror.builders/post/114296https://forum.magicmirror.builders/post/114296Wed, 10 Jan 2024 13:09:00 GMT<![CDATA[Reply to suddenly the screen can't turn on on Wed, 10 Jan 2024 13:08:14 GMT]]>@schris88 only pi4 or 5 will have Wayland display manager.

pi3 is still on x11

]]>https://forum.magicmirror.builders/post/114294https://forum.magicmirror.builders/post/114294Wed, 10 Jan 2024 13:08:14 GMT<![CDATA[Reply to suddenly the screen can't turn on on Wed, 10 Jan 2024 07:54:54 GMT]]>I was just trying to get a PIR Sensor running to toggle the display on Pi5 and this was the way to go on a fresh OS install, maybe it´ll help you out too

WAYLAND_DISPLAY=“wayland-1” wlr-randr --output HDMI-A-1 --off
WAYLAND_DISPLAY=“wayland-1” wlr-randr --output HDMI-A-1 --on

If you monitor turns back on by itself after ~10 secs add vc4.force_hotplug=1 (1=hmdi1 / 2=hdmi2 / 3=both) to the end of your /boot/firmware/cmdline.txt

if you´re running rotated you can add that as --transform 90 (more options see wlr-randr --help)

vcgencmd, xrandr and xset were not working anymore for me

]]>https://forum.magicmirror.builders/post/114292https://forum.magicmirror.builders/post/114292Wed, 10 Jan 2024 07:54:54 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 18:12:02 GMT]]>@lkthomas
Hmm, you are on Bookworm, right?
Maybe this helps: https://forums.raspberrypi.com/viewtopic.php?t=358689

]]>https://forum.magicmirror.builders/post/114264https://forum.magicmirror.builders/post/114264Tue, 09 Jan 2024 18:12:02 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 16:17:53 GMT]]>@MyMirror I got the same issue using FKMS with “vcgencmd display_power 1” command, it got blank screen after 2 seconds of showing the object on the monitor

]]>https://forum.magicmirror.builders/post/114253https://forum.magicmirror.builders/post/114253Tue, 09 Jan 2024 16:17:53 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 15:31:28 GMT]]>@MyMirror testing now, but isn’t fkms deprecated already?

]]>https://forum.magicmirror.builders/post/114250https://forum.magicmirror.builders/post/114250Tue, 09 Jan 2024 15:31:28 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 14:12:55 GMT]]>@lkthomas

Give this a try:
in /boot/config.txt
change

dtoverlay=vc4-kms-v3d

to

dtoverlay=vc4-fkms-v3d

then
vcgencmd display_power 1
vcgencmd display_power 0

BR
Jens

]]>https://forum.magicmirror.builders/post/114242https://forum.magicmirror.builders/post/114242Tue, 09 Jan 2024 14:12:55 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 00:48:20 GMT]]>@sdetweil yes, it failed even before upgrading the OS, it’s not “upgrading”, it’s a fresh install

]]>https://forum.magicmirror.builders/post/114221https://forum.magicmirror.builders/post/114221Tue, 09 Jan 2024 00:48:20 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 00:47:17 GMT]]>@lkthomas do it failed before you upgraded the os.

]]>https://forum.magicmirror.builders/post/114220https://forum.magicmirror.builders/post/114220Tue, 09 Jan 2024 00:47:17 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 00:46:06 GMT]]>@sdetweil nope, I was using a 3 years old OS, so I did an upgrade to latest version of the OS on my RPi 3B+, problem still the same.

]]>https://forum.magicmirror.builders/post/114219https://forum.magicmirror.builders/post/114219Tue, 09 Jan 2024 00:46:06 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 00:44:17 GMT]]>@lkthomas you made no changes to the system before this trouble?

]]>https://forum.magicmirror.builders/post/114218https://forum.magicmirror.builders/post/114218Tue, 09 Jan 2024 00:44:17 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 00:38:22 GMT]]>@sdetweil sorry what do you mean?

]]>https://forum.magicmirror.builders/post/114217https://forum.magicmirror.builders/post/114217Tue, 09 Jan 2024 00:38:22 GMT<![CDATA[Reply to suddenly the screen can't turn on on Tue, 09 Jan 2024 00:22:08 GMT]]>@lkthomas no other changes?

]]>https://forum.magicmirror.builders/post/114214https://forum.magicmirror.builders/post/114214Tue, 09 Jan 2024 00:22:08 GMT