Troubleshooting ................................................................................................................. 55
The optical disc tray does not open for removal of a CD, DVD, or BD ............. 56
The computer does not detect the optical drive ................................................ 56
A disc does not play .......................................................................................... 57
A disc does not play automatically .................................................................... 57
A movie stops, skips, or plays erratically .......................................................... 58
A movie is not visible on an external display ..................................................... 58
The process of burning a disc does not begin, or it stops before
completion ......................................................................................................... 58
A device driver must be reinstalled ................................................................... 59
Obtaining the latest HP device drivers ............................................. 59
Obtaining Microsoft device drivers ................................................... 59
Webcam (select models only) ............................................................................................................ 61
Adjusting webcam properties ............................................................................................. 61
5 Power management
Setting power options ......................................................................................................................... 63
Using power-saving states ................................................................................................. 63
Initiating and exiting Sleep ................................................................................ 63
Initiating and exiting Hibernation ....................................................................... 64
Using the battery meter ..................................................................................................... 64
Using power plans ............................................................................................................. 64
Viewing the current power plan ......................................................................... 65
Selecting a different power plan ........................................................................ 65
Customizing power plans .................................................................................. 65
Setting password protection on wakeup ............................................................................ 65
Using Power Assistant (select models only) ...................................................................................... 66
Starting Power Assistant .................................................................................................... 66
Using external AC power .................................................................................................................... 66
Connecting the AC adapter ............................................................................................... 67
Using battery power ........................................................................................................................... 68
Finding battery information in Help and Support ............................................................... 68
Using Battery Check .......................................................................................................... 68
Displaying the remaining battery charge ........................................................................... 69
Inserting or removing the battery ....................................................................................... 69
Charging a battery ............................................................................................................. 70
Maximizing battery discharge time .................................................................................... 71
Managing low battery levels .............................................................................................. 71
Identifying low battery levels ............................................................................. 71
Resolving a low battery level ............................................................................. 71
Resolving a low battery level when external power is available ....... 71
Resolving a low battery level when a charged battery is
available ........................................................................................... 72
Resolving a low battery level when no power source is
available ........................................................................................... 72
Resolving a low battery level when the computer cannot exit
Hibernation ....................................................................................... 72
Calibrating a battery ........................................................................................................... 72
Step 1: Fully charge the battery ........................................................................ 72
Step 2: Disable Hibernation and Sleep ............................................................. 73
vii
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