Some times MySQL service could not start on Lampp latest version, When you start the Apache, MySQL, ProFTPd on lampp the output is shows like below,

# /opt/lampp/lampp start


Starting XAMPP for Linux 1.8.3-5...

XAMPP: Starting Apache...ok.

XAMPP: Starting MySQL...ok.

XAMPP: Starting ProFTPD...ok.

When you will check on lampp status "MySQL is not running."
 
# /opt/lampp/lampp status


Starting XAMPP for Linux 1.8.3-5...

XAMPP: Starting Apache...ok.

MySQL is not running.

XAMPP: Starting ProFTPD...ok.


We have already discussed a few solutions on previous posts for the same issue, also try with mysqld_safe
 
# /opt/lampp/bin/mysqld_safe


2015-03-21 14:41:02 16074 mysqld_safe Logging to '/opt/lampp/var/localhost.err'.

2015-03-21 14:41:02 16074 mysqld_safe Starting mysqld daemon with databases from /opt/lampp/var

2015-03-21 14:41:05 16074 mysqld_safe mysqld from pid file /opt/lampp/var/localhost.pid ended

Again stop and start all the services.