Force image size at startup

Hi,

Libreelec is installed on my Raspberry, which is linked to my TV via an AV amp, with only HDMI cables. If I start my TV before my Raspberry, then the image fits perfectly in my TV. However, if I start my Raspberry before starting my TV, then the image is bigger than my TV, thus I have to reboot my Raspberry for it to fit my TV.

Is there a way to fix the size of the image in order to make it fit my TV even if it is off?

Thanks.

Regards

Quote from Da Flex

I suggest to start the RPi with your preferred HDMI mode, defined at config.txt.

That worked perfectly, thanks!