Comment # 1 on bug 111334 from Gustavo A. Díaz

Ok, fixed. The problem was that KDE neon modify the file /etc/os-release. The
install script run fine since I've modified it (instead of os-releast) from:

case "$ID" in
        ubuntu|linuxmint|debian)

to:

case "$ID" in
        ubuntu|linuxmint|debian|neon)

and then I think DRM_VERSION is empty because of modified ID in os-release.

I think there must a way to support this, since KDE Neon is Ubuntu LTS based.