Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Laptop goes to sleep if no battery but AC plugged in

16 Nov 2009   #1
Allan47

Windows 7 Ultimate x64
 
 
Laptop goes to sleep if no battery but AC plugged in

I haven't verified this yet, but I wondered if it's a possible bug?

I bought a Dell XPS M1330 over a year ago and it came preloaded with Vista Home Premium. Since I want to keep the batteries in good condition I run the laptop with no battery connected and AC plugged in whenever it sits on my desk at home.

However, in Windows 7 it seems that Windows wants to put the laptop to sleep after 10-15 minutes if I do this. Since I have various USB devices plugged in, especially external storage, this is a problem. It goes away if I run with the battery plugged in but like I said, not verified yet.


My System SpecsSystem Spec
.

16 Nov 2009   #2
jav

Windows 7 Ultimate x86 SP1
 
 

It's not bug.. It's new power management settings in windows 7.
You can easily change it just press you battery icon and press more power options
You will come up with window like this:


Now press change plan settings for the plan you are using.. After this it's very user frindly ( you can choose when dim you brightness, when put in sleep and when turn off hardware)


Attached Thumbnails
-untitled.png  
Attached Images
 
My System SpecsSystem Spec
16 Nov 2009   #3
Allan47

Windows 7 Ultimate x64
 
 

"Put the computer to sleep" is set to "Never" for "plugged in" in all three power profiles, but the computer still goes to sleep if the battery is not plugged in.

I ran
Code:
powercfg -energy
and it actually think my settings are an error:
Code:
Power Policy:Sleep timeout is disabled (Plugged In)
The computer is not configured to automatically sleep after a period of inactivity.
My System SpecsSystem Spec
.


16 Nov 2009   #4
Frostmourne

Windows 7 Ultimate x86-64
 
 

Some laptops have a built in service or software that requires the battery to be in the laptop. Stick it back in and check.
My System SpecsSystem Spec
16 Nov 2009   #5
Allan47

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Frostmourne View Post
Some laptops have a built in service or software that requires the battery to be in the laptop. Stick it back in and check.
This one doesn't, since it worked just fine in Vista (and Ubuntu).
Unless Dell has some special power management software that's missing from Windows 7...
My System SpecsSystem Spec
16 Nov 2009   #6
Frostmourne

Windows 7 Ultimate x86-64
 
 

It might be. Does the problem go away with the battery inserted?
My System SpecsSystem Spec
27 Nov 2009   #7
Allan47

Windows 7 Ultimate x64
 
 

If the battery is plugged in everything works fine.

I tested setting the power options for "on battery" to 1 minute and waited three minutes without touching the computer, so it's not those settings Windows uses.

I also checked the BIOS and there are no sleep or standby settings available.
My System SpecsSystem Spec
27 Nov 2009   #8
Frostmourne

Windows 7 Ultimate x86-64
 
 

Then its probably built into the dell, can you contact them to clarify?
My System SpecsSystem Spec
Reply

 Laptop goes to sleep if no battery but AC plugged in




Thread Tools





Similar help and support threads
Thread Forum
Laptop Battery 0% avalailable plugged in charging but its not.
I don't know how to fix this one but if i unplug the power the laptop turns off automatically and it's not an OS error i think because i have Windows XP dual booted and that say's the same thing anyone please help. ...
Hardware & Devices
Keeping Your Laptop Plugged in All the Time Will Kill Its Battery Fast
I am not sure about this article but I have always kept my Toshiba's plugged in all the time and have had no problems. Keeping Your Laptop Plugged in All the Time Will Kill Its Battery Faster | Gadget Lab | Wired.com Rich Added: That's why I did not put it anyplace else but here..
Chillout Room
Laptop not booting after the battery died during sleep mode.
Hello everyone. A few hours ago my computer was in sleep mode and unplugged when the battery died. Upon plugging it back in, I was met with an empty black screen. I turned it off by holding the power button, but the laptop refuses to boot now. Upon turning it on, I get the Toshiba start...
General Discussion
Laptop Battery - Plugged in, not charging.
As per the thread title, the battery is recognised as being present, but is not charging, and when the power is disconnected, will not run on battery power. I have come to the conclusion that it is most likely a hardware issue, see below. Comptuer is the one in my 'System Specs', just on 2...
Hardware & Devices
Tip for laptop users: battery condition, sleep problems
Lot of us Seven users have a laptop as a main computer. Todays new Dells, HP's, Sonys and Toshibas are so advanced and powerful you can do marvels with them. The laptop's battery is a consumer product. Battery capacity will fade little by little, and you often notice a weakened capacity of the...
Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 11:58.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App