About the last bits after installing the MagicMirror in the automatic way: This is what I did:

Turn Chromium into a kiosk

Now we’ll configure Chromium to run in kiosk mode.

Open the autostart config file in the Nano editor.

Config file for Jessie:

sudo nano ~/.config/lxsession/LXDE-pi/autostart

Disable the screensaver
For both Wheezy and Jessie, comment out the following line using a hash symbol (#):

# @xscreensaver -no-splash

Launch Chromium on startup in kiosk mode
For Wheezy, add the following lines to the bottom of the file:

@xset s off
@xset -dpms
@xset s noblank
@unclutter -idle 1
/usr/bin/chromium --kiosk --ignore-certificate-errors --disable-restore-session-state "http://localhost"

For Jessie, add the following lines to the bottom of the file:

@xset s off
@xset -dpms
@xset s noblank
@unclutter -idle 1
@chromium-browser --incognito --kiosk http://localhost/

To exit, press CTRL-X, type Y and press enter.

Next, we need to modify the Pi’s BIOS settings for a little extra awesomeness.

Open BIOS config:

sudo nano /boot/config.txt

Use portrait monitor orientation
Add the following line to rate the display 90 degrees:

display_rotate=1

To rotate in the other direction (270 degrees), use the following line instead:

display_rotate=3

Enable HDMI hotplugging
Uncomment the following line:

hdmi_force_hotplug=1

Save and exit. Finally, reboot your Pi once more:

sudo reboot

Please help.

thanks,
Mir

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