Sony VGN-U750P - Manual (Page 91)

91
Using your VAIO computer
Troubleshooting power management
The power management setting is not responding
Your computer's operating system may become unstable if a lower power state, such as Hibernate is initiated, and then changed
before the computer completely enters the lower power state.
To restore the computer to its normal operating stability, proceed as follows:
1 Close all open applications.
2 Press the ++ button (located on the right side of your computer) or <Ctrl>+<Alt>+<Delete> simultaneously
on the folding keyboard and select Restart from the Shut Down drop-down list.
The computer restarts.
3 If the procedure does not work, press and hold the power button for four seconds or longer to shut down the computer.