windows vista home premium won't go to sleep automatically

it goes to sleep fine when i put it to sleep manually, but it does not go to sleep automatically as it should after 20 minutes, which is what i have it under in the power options. can someone help? thanks.
 

My Computer

richc46

Vista Guru
Gold Member

My Computer

System One

  • Manufacturer/Model
    Dell XPS420
    Memory
    6 gig
    Graphics Card(s)
    ATI Radeon HD3650 256 MB
    Sound Card
    Intergrated 7.1 Channel Audio
    Monitor(s) Displays
    Dell SP2009W 20 inch Flat Panel w Webcam
    Hard Drives
    640 gb
    Cooling
    Fan
    Mouse
    Dell USB 4 button optical
    Keyboard
    Dell USB
    Other Info
    DSL provided by ATT
yeah i tried that already and it didn't help one iota. i think that advice was intended mainly for computers that go to sleep but wake up inappropriately, whereas my computer goes to sleep fine if you do it manually, but does not go to sleep automatically.
 

My Computer

ilikefree

Vista Guru
Gold Member
Is it a laptop?
 

My Computer

System One

  • Manufacturer/Model
    Lenovo Thinkpad T400
    CPU
    Intel Mobile Core 2 Duo P8700 @ 2.53GHz
    Motherboard
    LENOVO 64734VM
    Memory
    2.00GB Single-Channel DDR3 @ 531MHz
    Graphics Card(s)
    Intel Mobile Intel 4 Series Express Chipset Family
    Sound Card
    Conexant 20561 SmartAudio HD
    Monitor(s) Displays
    15 inch
    Screen Resolution
    1280 x 800
    Hard Drives
    1x 180GB Intel 530 series SSD
    1 x 120GB Hitachi 5400rmp
    1 x 650GB Western Digital Elements 5400rpm
    1x 1Tb Western Digital Elements 5400rpm
    Internet Speed
    Medium for New Zealand
    Other Info
    Weakest part of my computer is the graphics chipset.
    Only ever used a laptop.
    Also use USB Freeview TV Card
    Lenovo Docking Station
    External Speakers
    Other bits a pieces as needed

richc46

Vista Guru
Gold Member
Be sure that the monitor is set to go off about 5 minutes before sleep.
 

My Computer

System One

  • Manufacturer/Model
    Dell XPS420
    Memory
    6 gig
    Graphics Card(s)
    ATI Radeon HD3650 256 MB
    Sound Card
    Intergrated 7.1 Channel Audio
    Monitor(s) Displays
    Dell SP2009W 20 inch Flat Panel w Webcam
    Hard Drives
    640 gb
    Cooling
    Fan
    Mouse
    Dell USB 4 button optical
    Keyboard
    Dell USB
    Other Info
    DSL provided by ATT

ilikefree

Vista Guru
Gold Member

My Computer

System One

  • Manufacturer/Model
    Lenovo Thinkpad T400
    CPU
    Intel Mobile Core 2 Duo P8700 @ 2.53GHz
    Motherboard
    LENOVO 64734VM
    Memory
    2.00GB Single-Channel DDR3 @ 531MHz
    Graphics Card(s)
    Intel Mobile Intel 4 Series Express Chipset Family
    Sound Card
    Conexant 20561 SmartAudio HD
    Monitor(s) Displays
    15 inch
    Screen Resolution
    1280 x 800
    Hard Drives
    1x 180GB Intel 530 series SSD
    1 x 120GB Hitachi 5400rmp
    1 x 650GB Western Digital Elements 5400rpm
    1x 1Tb Western Digital Elements 5400rpm
    Internet Speed
    Medium for New Zealand
    Other Info
    Weakest part of my computer is the graphics chipset.
    Only ever used a laptop.
    Also use USB Freeview TV Card
    Lenovo Docking Station
    External Speakers
    Other bits a pieces as needed
it appears that i have fixed the problem by disabling a startup on my computer, namely the logitechquickcam thing, hope it doesn't **** up my computer though.
 

My Computer

richc46

Vista Guru
Gold Member
You may have to log in to the quick cam manually when needed, not a problem.
 

My Computer

System One

  • Manufacturer/Model
    Dell XPS420
    Memory
    6 gig
    Graphics Card(s)
    ATI Radeon HD3650 256 MB
    Sound Card
    Intergrated 7.1 Channel Audio
    Monitor(s) Displays
    Dell SP2009W 20 inch Flat Panel w Webcam
    Hard Drives
    640 gb
    Cooling
    Fan
    Mouse
    Dell USB 4 button optical
    Keyboard
    Dell USB
    Other Info
    DSL provided by ATT
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