push the power on off button on tower one time fast should bring it back to life.
To save power
eat it
Hibernate is a power mode that allows the computer to save an image of the desktop to the hard drive and enter a state of reduced power consumption to save energy.
turn off power save mode
You can do it from Power Option in Control Panel.
Control Panel --> Power Options
70%
Hibernate.
That means your computer has entered a state of Hibernation to conserve battery life. Very useful if you're working on something at work or school, and you want to resume the progress at home.
En el modo de ahorro.
Check the power specs for your monitor at the Dell website. There are many. many Dell monitors.
It shouldn't. If there is no actual power to the CRT (no picture visible) then there really can't be any degradation of the tube.