I had a variety of distros on this Lenovo G50-45 laptop, most recently Debian 8 and now Xubuntu 15.04 x64. Whenever I want to put the system to sleep (suspend) I get the error message written in yellow:
Warning!!! Boot script table modified, please contact your vendor!!!
The system sometimes suspends, but mostly it either reboots or shuts down.
I have 20 GB swap, so that's not an issue.
What could be wrong?