Save performance when rotating screen e.g. on Raspberry Pi

evroom

Okay, found it.

In my /boot/config.txt I had the width and height set to 900 and 1600 and this has to be now 1600 and 900.
This is working:

display_hdmi_rotate=0
framebuffer_width=1600
framebuffer_height=900

Works now.

Only need to modify the omxplayer lines to have those streams rotated too.

thedk

Didnt work that easy for me.

You have to take the resolution of your display/monitor in the config.txt, not just 1600,900.
I had to enable overscan, cause the picture was to big.
If you’re using the MMM-Remote_Control the picture is rotated when you have a look at your MagicMirror.

I switched back to the fake KMS driver.

j.e.f.f

Great hack!! I’m going to add this to my CSS 101 guide if that’s OK. I think this is incredibly useful.

ptrk95

@j-e-f-f thank you! Of course you can :)

Joern

Hello,

Iam struggeling on my PI3 to rotate by 90deg to right. Monitor has 1920x1080.
But I see only black screen at any other position than -90deg!!
As I need to change to 90deg or -270deg I got only black screen (also 180deg even) …

So I changed config.txt to:

display_hdmi_rotate=0
framebuffer_width=1920
framebuffer_height=1080

& custom.css to:

body {
        margin: 0;
        position: absolute;
        transform: rotate(90deg);
        transform-origin: top left; 
        width: 100vh;
        height: 100vw;
        object-fit: cover;
        top: 100vh;
        visibility: visible;
}

What is missing?

Worse case I change physical mounting way, but not preferred :face_with_stuck-out_tongue_winking_eye:

Joern

transform: rotate(90deg);
transform-origin: top right;

works at least see have screen, but only half screen is used, so no option…

hdez

Warning! Extreme newbie here. This is only my second day playing with Magic Mirror css.

I changed my css file and boot/config.txt following @evroom’s instructions above and although I was able to rotate the screen with these instructions, like @Joern, the Magic Mirror modules only fill the bottom half of the screen.

My CSS file is as follows (sorry, I don’t know how to put this in a separate box):

body {
margin: 0px; If I omit “px”, Magic Mirror does not display correctly.
position: absolute;
transform: rotate(90deg);
transform-origin: top right;
width: 100vh;
height: 100vh; If I change this to “100vw”, Magic Mirror does not display correctly.
object-fit: cover;
top: 100vh;
visibility: visible;
background: #000;
color: #aaa;
font-family: “Roboto Condensed”, san-serif;
font-weight: 400;
font-size: 2em;
line-height: 1.5em;
-webkit-font-smoothing: antialiased;
}
.MMM-HTMLBox {
font-size: 18px;
line-height: 22px;
}
.MMM-RTSPStream header {
text-align: left;
}
.MMM-RTSPStream .innerWrapper {
border-style: none;
}

…a few more entries after these ones.

My boot/config.txt contains the following entry:

display_hdmi_rotate=0
framebuffer_width=1600
framebuffer_height=900

Any entries shown here that were not included in @evroom’s instructions, are from the original installation of Magic Mirror.

I’m running Magic Mirror latest software on a Pi4 with an Acer 24" monitor.

Any ideas as to what I should change in order for the modules to fill the entire screen?

Any help will be greatly appreciated.

sdetweil

@hdez said in Save performance when rotating screen e.g. on Raspberry Pi:

(sorry, I don’t know how to put this in a separate box

after you paste the text, select it, and then push the button above the editor that looks like </>

hdez

@sdetweil Thanks. Next time.

hdez

Never mind guys I was able to get it to work by following the instructions here
After all it wasn’t the css file that I needed to change, but the Pi autostart file in the /etc/xdg/lxsession/LXDE-pi/ folder.