How does Laptop Knows After shutdown that lid was opened?
After I shutdown my laptop completely and when I reopen the lid its turns on automatically so, I believe the laptop is not shutting down completely because otherwise how does laptop knows I opened the lid.
HP pro-book 450 g3, windows 10.
laptop power lid open
asked Feb 1 at 6:26
SaadSaad
31
add a comment |
After I shutdown my laptop completely and when I reopen the lid its turns on automatically so, I believe the laptop is not shutting down completely because otherwise how does laptop knows I opened the lid.
HP pro-book 450 g3, windows 10.
laptop power lid open
asked Feb 1 at 6:26
SaadSaad
31
This could be an option in your firmware settings. This happens at the hardware level.
– Appleoddity
Feb 1 at 7:17
add a comment |
After I shutdown my laptop completely and when I reopen the lid its turns on automatically so, I believe the laptop is not shutting down completely because otherwise how does laptop knows I opened the lid.
HP pro-book 450 g3, windows 10.
laptop power lid open
asked Feb 1 at 6:26
SaadSaad
31
After I shutdown my laptop completely and when I reopen the lid its turns on automatically so, I believe the laptop is not shutting down completely because otherwise how does laptop knows I opened the lid.
HP pro-book 450 g3, windows 10.
laptop power lid open
laptop power lid open
asked Feb 1 at 6:26
SaadSaad
31
asked Feb 1 at 6:26
SaadSaad
31
asked Feb 1 at 6:26
SaadSaad
31
asked Feb 1 at 6:26
SaadSaad
31
asked Feb 1 at 6:26
SaadSaad
31
31
This could be an option in your firmware settings. This happens at the hardware level.
– Appleoddity
Feb 1 at 7:17
add a comment |
This could be an option in your firmware settings. This happens at the hardware level.
– Appleoddity
Feb 1 at 7:17
This could be an option in your firmware settings. This happens at the hardware level.
– Appleoddity
Feb 1 at 7:17
This could be an option in your firmware settings. This happens at the hardware level.
– Appleoddity
Feb 1 at 7:17
add a comment |
1 Answer
1
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See
Solved: How does computer know when lid is closed? - Dell Community
There's a lid switch. A mechanical switch. On older laptops, you can often see a small stick button sticking out of the surface, on most modern laptops it's somewhere in the hinge. The button then "sends" an ACPI signal to your operating system of choice. (Very simplified description)
and
The answer is that somewhere in the system there's a switch that opens and closes when the screen is open or closed. On older systems the switch was visible, usually on the strip above the keyboard. On newer ones, it's very often a magnet hidden in the frame of the LCD panel that activates a switch built into the mainboard when you close the cover.
although, I prefer
Actually it knows because when you close the lid because there is a little guy with binoculars who's job it is is to monitor whether the computer is opened or closed. When the lid is closed he calls from his lookout position to the little guys down below, whos job it is is to run to the power switch and click it so the computer shuts off or goes to sleep.
See also What is the exact mechanism by which the laptop knows whether you closed it's lid or not?
answered Feb 1 at 7:59
MawgMawg
1,58553051
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
See
Solved: How does computer know when lid is closed? - Dell Community
There's a lid switch. A mechanical switch. On older laptops, you can often see a small stick button sticking out of the surface, on most modern laptops it's somewhere in the hinge. The button then "sends" an ACPI signal to your operating system of choice. (Very simplified description)
and
The answer is that somewhere in the system there's a switch that opens and closes when the screen is open or closed. On older systems the switch was visible, usually on the strip above the keyboard. On newer ones, it's very often a magnet hidden in the frame of the LCD panel that activates a switch built into the mainboard when you close the cover.
although, I prefer
Actually it knows because when you close the lid because there is a little guy with binoculars who's job it is is to monitor whether the computer is opened or closed. When the lid is closed he calls from his lookout position to the little guys down below, whos job it is is to run to the power switch and click it so the computer shuts off or goes to sleep.
See also What is the exact mechanism by which the laptop knows whether you closed it's lid or not?
answered Feb 1 at 7:59
MawgMawg
1,58553051
add a comment |
See
Solved: How does computer know when lid is closed? - Dell Community
There's a lid switch. A mechanical switch. On older laptops, you can often see a small stick button sticking out of the surface, on most modern laptops it's somewhere in the hinge. The button then "sends" an ACPI signal to your operating system of choice. (Very simplified description)
and
The answer is that somewhere in the system there's a switch that opens and closes when the screen is open or closed. On older systems the switch was visible, usually on the strip above the keyboard. On newer ones, it's very often a magnet hidden in the frame of the LCD panel that activates a switch built into the mainboard when you close the cover.
although, I prefer
Actually it knows because when you close the lid because there is a little guy with binoculars who's job it is is to monitor whether the computer is opened or closed. When the lid is closed he calls from his lookout position to the little guys down below, whos job it is is to run to the power switch and click it so the computer shuts off or goes to sleep.
See also What is the exact mechanism by which the laptop knows whether you closed it's lid or not?
answered Feb 1 at 7:59
MawgMawg
1,58553051
add a comment |
See
Solved: How does computer know when lid is closed? - Dell Community
There's a lid switch. A mechanical switch. On older laptops, you can often see a small stick button sticking out of the surface, on most modern laptops it's somewhere in the hinge. The button then "sends" an ACPI signal to your operating system of choice. (Very simplified description)
and
The answer is that somewhere in the system there's a switch that opens and closes when the screen is open or closed. On older systems the switch was visible, usually on the strip above the keyboard. On newer ones, it's very often a magnet hidden in the frame of the LCD panel that activates a switch built into the mainboard when you close the cover.
although, I prefer
Actually it knows because when you close the lid because there is a little guy with binoculars who's job it is is to monitor whether the computer is opened or closed. When the lid is closed he calls from his lookout position to the little guys down below, whos job it is is to run to the power switch and click it so the computer shuts off or goes to sleep.
See also What is the exact mechanism by which the laptop knows whether you closed it's lid or not?
answered Feb 1 at 7:59
MawgMawg
1,58553051
See
Solved: How does computer know when lid is closed? - Dell Community
There's a lid switch. A mechanical switch. On older laptops, you can often see a small stick button sticking out of the surface, on most modern laptops it's somewhere in the hinge. The button then "sends" an ACPI signal to your operating system of choice. (Very simplified description)
and
The answer is that somewhere in the system there's a switch that opens and closes when the screen is open or closed. On older systems the switch was visible, usually on the strip above the keyboard. On newer ones, it's very often a magnet hidden in the frame of the LCD panel that activates a switch built into the mainboard when you close the cover.
although, I prefer
Actually it knows because when you close the lid because there is a little guy with binoculars who's job it is is to monitor whether the computer is opened or closed. When the lid is closed he calls from his lookout position to the little guys down below, whos job it is is to run to the power switch and click it so the computer shuts off or goes to sleep.
See also What is the exact mechanism by which the laptop knows whether you closed it's lid or not?
answered Feb 1 at 7:59
MawgMawg
1,58553051
answered Feb 1 at 7:59
MawgMawg
1,58553051
answered Feb 1 at 7:59
MawgMawg
1,58553051
answered Feb 1 at 7:59
MawgMawg
1,58553051
1,58553051
add a comment |
add a comment |
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This could be an option in your firmware settings. This happens at the hardware level.
– Appleoddity
Feb 1 at 7:17