I have installed XAMP 5.6 on my Ubuntu 14.04 system.
I have used /opt/lampp/manager-linux-x64.run to start Apache and MySql.
I have used phpMyAdmin without password (MySql root default no password.)
All worked fine.
I have readed it is strongly recommended to put a password on the user MySql root user, so i did it, i found two account in the table: root@localhost and root@linux, i puted the same password (only letters and numbers) to both.
I updated the /opt/lampp/phpadmin/config.inc.php with my password.
I can't login anymore with phpMyAdmin, it says "...error... verify the values of host,username,password...".
The log confirm this login error.
Thank you for your help.