Q: iPhone 6 Plus horizontal  keyboard

Hello, DEBGver.  

Thank you for visiting Apple Support Communities.  

I understand that you are experiencing an issue with the keyboard on your iPhone 6 Plus when used horizontal.  Could you elaborate on what exact behavior your are experiencing as this may help me provide a better answer.  Does this happen in all application that allow typing?  Does the touch screen function without the keyboard present?  In the interim, please try the troubleshooting steps in the article below.  

If the screen on your iPhone, iPad, or iPod touch doesn‘t respond to touch

Get help with the keyboard on your iPhone, iPad, or iPod touch

Cheers