Abstract: The hibernation of a computing device is initiated in response to user input. The operating system of the computing device initiates a termination process as part of hibernation. Prior to completion of the process, a particular driver detects user input to cancel hibernation. Before terminating, the operating system inquires to a number of drivers regarding whether hibernation should continue. The particular driver responds that hibernation should not continue, and the operating system thus cancels hibernation. In another embodiment, the user does not provide input to cancel hibernation until after the termination process has been completed. Upon completion of the process, the current state of the computing device is saved. Prior to completely saving the current state, firmware detects the user input to cancel hibernation. Once the current state has been completely saved, the firmware initiates a return-from-hibernation process by the operating system, without powering off the computing device.

Abstract: A computer system and methods for determining whether to compress the content of memory in a computer system, optionally including video memory, prior to storing the contents of memory within a non-volatile storage device prior to entering a hibernation mode where power is disabled to memory. An evaluation of the actual performance of computer system speed in storing and retrieving a file having the content of memory and decompressing the file is made to determine whether time is saved as a result of reducing the size of the file by compressing as compared to the time to compress and decompress the file. The evaluation of actual computer system performance takes place after each exit from hibernation mode and a determination is made whether to compress the content of memory the next time a hibernation mode request occurs in response to that evaluation.