Solved locale problem by editing
Code:
/etc/default/locale
. The problem was xfce4-power-manager wasn't able to launch because of incomplete locale settings. Strange that Ubuntu changed this file itself during upgrade as I never touched it.
Before
After:
Code:
LANG="en_US.UTF-8"
LANGUAGE="en_US:en"
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE=en_US.UTF-8
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES=en_US.UTF-8
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"