Awful beeping sound on boot

I formated the entire hard drive and installed Ubuntu 14.04 in a Macbook 5.2.
Ubuntu boots decently fast, however there is a disconcerting garbled image on screen:
After that Ubuntu runs fairly well but once I restart the machine a long beeping sound takes place instead of booting, the laptop remains with power but nothing will happen after that.
I have to manually shut down the laptop and restart, Ubuntu will load but the next restart will have the same beeping sound of death.
I already flushed the PRAM with hotkeys and by removed the Battery several times.
Nothing has fixed this problem, and I'm unable to install Mac OS X to troubleshoot it.
Note: This problem appeared right after installing Ubuntu for the first time, I already formated and installed several other Distros and the beep remains.
What can I do to fix this?

Perhaps it is because Apple make the kernel drivers that 'help' users by beeping when the hardware is having issues? It's still unclear to me if the sound is coming from the speakers, connect some headphones to see if that redirects the sound.
Other OS's don't always access every hardware feature so they may not make the same checks as Apple software.
I wonder if the display has a sensor for reading the backlight output. When it is found to be off the OS may ring the alarm?
What point does the beeping begin?
If you can get into verbose mode you may be able to see some error messages. This is easiest if you have a bootable OS X disk. The nvram command can also be used to set the verbose mode in the settings to force verbose mode on every boot - but it can be difficult to do if you have no active OS X installation available.
How to Reset NVRAM on your Mac - Apple Support
Mac OS X: How to start up in single-user or verbose mode - Apple Support
http://osxdaily.com/2007/03/25/always-boot-mac-os-x-in-verbose-mode/
https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/ man8/nvram.8.html
It seems odd to me that the boot picker seems to show a fully illuminated screen, perhaps that is driving the inverter differently? Is that always correctly displayed?
Please provide some info on the other equipment you have access to, it could help you jump into some testing instead of discussing hypothetical problems.
NOTE: This is speculation on my part, Apple engineers will have access to troubleshooting manuals - do you have access to an Apple store or service center - is that an option for you? They may be able to say categorically what the sound means if you are lucky.

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