Upgrade 14.10 to 15.04: some problems encountered

[Valter Mura]

Hi All

I finally decided to upgrade to 15.04. It went well, but I'm 
experiencing some problems:

- when I login, I need to digit my password, even if I checked the box 
"Automatic Login" in the System Setting/User management

- HPLIP software cannot reside in the system tray, because it states "no 
tray available". HPLIP opens regularly from the KDE menu

- if system turns off monitor (after some idle time), it isn't able to 
turn on again the monitor, it remain blank: I disabled this command to 
avoid this (hope temporarily) problem

Does anyone have some hints for them?

A note on Plasma 5: responsive, quick, elegant, modern and clean. Go 
ahead in this way, I like it very much!

Ciao

-- 
Valter
Open Source is better!
KDE: www.kde.org
Kubuntu: www.kubuntu.org
LibreOffice: www.libreoffice.org