Solved: Magento Dashboard Chart/Graph Broken
After migrating a Magento installation from an older server to a new VPS. Magento admin is not displaying the graph/chart which usually shows upon Magento admin login. I realise this is isolated to the 24 Hours view ONLY.
This is related to the minimal allowed GET variable length settings. Check your settings for suhosin:
Add/Edit line - > suhosin.get.max_value_length = 1024
So, edit /etc/php5/fpm/conf.d/suhosin.ini
If the above file doesn't exist for you. Then locate & edit, /usr/local/lib/php.ini
I know I have bad taste in colours.
If this helped, please leave a comment below!