How-to easy install of Mythtv to Kubuntu 18.04

[barfly]

Setting up mythtv on kubuntu 18.04 as of 19th June 2018

Ensure your tv card or usb stick and video card drivers are correctly installed, test with Kaffeine.

For nvidia users - add to /etc/X11/xorg.cong the following if you have small fonts on login screen:
~add to "monitor option"
Option "UseEdidDpi" "FALSE"
Option "DPI" "100 x 100"

and to "Screen" section to stop cogging on video playback:

eg. Option "metamodes" "1920x1080_50 +0+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On}"
(This last can also be changed from the nvidia-settings > advanced tab via the gui)

Then sudo the following commands:

apt-get install mythtv-backend-master,mythtv,mythtvplugins,mythtv-theme-mythbuntu

then sudo the following with your users

adduser *** mythtv
adduser *** video
adduser *** audio

find password generated on install in:
/etc/mythtv/config.xml
eg. NPUjqo3j

Reboot

Ensure all copies of config.xml are identical or delete
all except one and create symlinks to it from these locations:
/etc/mythtv
/home/mythtv/.mythtv
/home/<your user>/.mythtv
/home/root/.mythtv

Run mythtv-setup using above password

then change password as below to your own if required.

# mysql -u root -p mysql
myqsl> GRANT ALL PRIVILEGES ON *.* TO 'mythtv'@'localhost'
-> IDENTIFIED BY 'mythtv' WITH GRANT OPTION;
mysql> UPDATE user SET authentication_string=PASSWORD('YOUR_PASSWORD_HERE ') WHERE user='mythtv';
mysql> FLUSH PRIVILEGES;
mysql> quit

reboot

Then run mythtv-setup and complete configuration.

gotchas:

Folder permissions on the default/default/live/videos/
and all the other art directories ensure they are r/w

config.xml files, check ALL the above locations twice

If you find that your playback and mythtv menu gui are set to the same size but the playback is in a box, make sure
on the setup configuration in the settings>appearance>theme-screen settings menu the "use fixed window size" is ticked
this caused me many hours of head-scratching.

Tony