It's an Kodi bug and fixed with K18.2, but in first place it's very unlikely you need it. It's just needed for very old not HD screens and analog tvs. Otherwise it's 99% that you have just set wrong settings at your screen.
Well, i'd tryed that but it doesnt work. I updated to K18.2 but after a reboot it was set to standard defaults. 
What can I do? I use the composite out for my car-display which only has a composite input.
I would prefer KODI for my "RPI3B+Car-PC", cause everything what i need is working with KODI
but there is actually no browser available for it.
AFAIK there is no Chrome or Chromium for ARM...
See conversation here:
Browser still missing on ARM? Please provide some kind of viable workaround!
oh, tanks, i didnt found this before.
Hi there,
is there any possibility to install an Chrome or Chromium-Browser on an RPI3B+ and LibreElec with Kodi?
I have found several opinions and ways to install on LibreElec and Kodi but not in connection with an RPI3B+.
Some people say its not possible cause the Chromium and Chrome-Browser is only available for x86-architectures.
But the normal "Google" Chrome-Browser for example on Windows OS is available also for x64-architectures.
Why then isn't a possibility to install x64 Chrome on RPI3B+ with LibreElec and Kodi?
And are there any plans about to make it available for it?
It would be very nice to have any Browser on Kodi, when you use it in your car. So you dont have to switch SD-Cards
any time.
I'm glad about your answers.
Regards,
Sascha K.
