Thanks for the reply.

Following your advice, I used a black background for the desktop. I also realized that it’s possible to remove the trash bin icon, then put the background of the taskbar in black, reduce its size, use auto-hide and even delete all its component one by one (by right clicking on the taskbar).

I also found the way to hide all the boot screens :

Rainbow screen :
- add disable_splash=1 at the end of the line in the file /boot/config.txt

4 raspberries logo :
- add logo.nologo at the end of the line in the file /boot/cmdline.txt

texts :
- in file /boot/cmdline.txt, add quiet at the end of the line and change console=tty from 1 to 3

cursor :
- add vt.global_cursor_default=0 at the end of the line in the file /boot/cmdline.txt

Now when the raspberry boots up, The screen remains fully black until MM starts and all the modules are loaded, except one white flashing screen at the startup of MM, I don’t know why.

Also, from turning on the raspberry until full loading of the MM and modules, it takes 49-50s. Is this normal?

About your comment on the power consumption, mine will be installed in the bathroom, so I intend to turn it on when I switch the light on, as per local electrical regulations, there can’t be no power inside a bathroom when it’s not switched on in purpose.

@bhepler - Nice, thank you.

@sdetweil good to know, thanks for the tip.

According to you, the 50s I’m talking about is ok or long?

Thanks for the reply.

Following your advice, I used a black background for the desktop. I also realized that it’s possible to remove the trash bin icon, then put the background of the taskbar in black, reduce its size, use auto-hide and even delete all its component one by one (by right clicking on the taskbar).

I also found the way to hide all the boot screens :

Rainbow screen :
- add disable_splash=1 at the end of the line in the file /boot/config.txt

4 raspberries logo :
- add logo.nologo at the end of the line in the file /boot/cmdline.txt

texts :
- in file /boot/cmdline.txt, add quiet at the end of the line and change console=tty from 1 to 3

cursor :
- add vt.global_cursor_default=0 at the end of the line in the file /boot/cmdline.txt

Now when the raspberry boots up, The screen remains fully black until MM starts and all the modules are loaded, except one white flashing screen at the startup of MM, I don’t know why.

Also, from turning on the raspberry until full loading of the MM and modules, it takes 49-50s. Is this normal?

About your comment on the power consumption, mine will be installed in the bathroom, so I intend to turn it on when I switch the light on, as per local electrical regulations, there can’t be no power inside a bathroom when it’s not switched on in purpose.

Hello everybody,

I’m currently working on the software part of my first mirror, installed MM 3.11.0 and first modules, everything is going well.

I rotated the screen by 90° also and reduced my borders to 0px, no problem.

The thing is, as I’m quite concern about power consumption (and environmental matters), I’m thinking about how to turn on and off the whole mirror (display AND pi3B+) when (not) needed.

This leads to one aesthetical “problem” for which I haven’t found any solution yet : at startup before I get to MM screen, I see the splash screen, then the 4 raspberries screen, then the desktop screen (I installed full raspbian buster).

Question is : is there a way to hide all of these, so at startup, the screen s powered, but remains black until the MM screen is displayed?

Thanks y’all for your help