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Notebook display brightness low when plugging out power cable?

Q: Notebook display brightness low when plugging out power cable?

As long as the power cable is plugged in in my notebook the brightness of my display is fine.

But when I plug it out and use the battery the brightness becomes suddenly darker.


How can I prevent this switch-to-dark-screen?

I found no corresponding option in the power plans


Preferred Solution: Notebook display brightness low when plugging out power cable?

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A: Notebook display brightness low when plugging out power cable?

Try going to the Power options and then click Change plan settings for your power plan then in the next window under battery at the bottom is a adjustment for brightness. Be sure to save changes one done.


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Hi Experts, I have a serious problem using my W520 since a few month. When plugging in or unpluggingthe power cable the system directly jumps into Blue Screen (BSOD). I used a small tool to extract the basic dump message: RESOURCE_NOW_OWNED I installed the newest versions of LENOVO Solution Center, LENOVO Energy Management, ...I did an BIOS update longer ago, but I'm not sure, if there was a time-based relation to my problems. The BSOD occurs when: * Laptop started with power cable => Power unplugged* Laptop started without power cable => Power plugged* Laptop in sleep mode => Power plugged and Laptop started again lifting screen* Bring Laptop in sleep mode => Power plugged Does anybode had this problem. Before every meeting now I have to shutdown and restartthe engine... I'm not sure, if the Windows repair CD could detect and repair such a problem.Thanks in advanceKlaus Wegener

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the subject says it all.brand new t520 with optimus (nvidia+intel) display adapter, 1920x1080 screen.whenever i plus in or unplug power, the display blanks for about 2 seconds, then flashes back on.the problem occurs whether the bios setting is integrated, dicrete, or optimus, and th problem occurs even if the display settings are the same in power profile for AC and battery. is this normal? it is very BAD. thanks in advance.george


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A:t520 display blanks and flashes when plugging/unplugging ac power

hey ghoffman,uninstall the current graphic driver that you have. let windows install its own generic drivers.once generic driver has been installed, test again and see if the problem occurs. If it does not, continue by going to our support site via http://support.lenovo.comdownload the latest graphic driver for your unit, install it and test again.

WW Social MediaImportant Note: If you need help, post your question in the forum, and include your system type, model number and OS. Do not post your serial number.Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! Follow @LenovoForums on Twitter!Have you checked out the Community Knowledgebase yet?!How to send a private message? --> Check out this article.

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I Got my XPS 15 9550    Build Date Dec-16-2015 Bios Ver 01.00.07 4302.13 UEFI
The fault I was able to find so far that is disturbing issue.
Condition1  - "When pressing  brightness keys F11-F12" (little crackling distorted noise from speakers)
Condition 2 - " When music playing out of speakers also at sometimes can hear crackling noise coming" ( like speakers can't handle the frequency properly)
Condition3 major one -  "At the time of plugging in power supply in or out of laptop."                                                                                                                                                When video/audio/u-tube playing I can hear  short crackling noise&nbs... Read more

A:Dell XPS 15 9550 Crackling Noise coming from speakers when plugging and un plugging power supply.

Hi Edwards, I am facing exactly the same issue as yours. First they delay the product, then they cancel the product and when they finally ship the product has issues. Please let me know if you found any solution for this

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Someone used my notebook and the display got bigger, and blurrier. I fixed the blurriness, and I can't really change the resolution except for 800x600 and 1024x768. I thought I had more options than that. Also, when I go to Power options under control panel to changes plan settings, the slider where I could change display brightness is nowhere to be found. So when I unplug the power cord, the screen no longer dims. halp me guise!

A:Halp! Display brightness control disappeared from power options?


anybody? 9 views

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how do i purchase a new power cable for a HP Pavilion g6-2027sa Notebook PC

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Everytime I plug or unplug my charger from my notebook, the brightness keeps changing?!?!?  Its very irritating and I've tried everything to try to fix it including going to the advanced power settings and turning off the "enable adaptive brightness."  Nothing has worked, please advise.

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I have a HP Pavillion n5350 notebook. When the computer is on you can hear it running, but can't see anything on the screen. I took off the keyboard and found that a little black 5 hole cable that connects from the base to the screen was broke. I have tried with no success getting a part number from HP, and cant find anywhere to buy such a cable. Are these standard cables, are there other resources outside HP to find them?

A:No Power to notebook LCD display

I was shadowing a network systems admin and he had to replace an LCD out of a DELL laptop. That cable you are talking about was permantly fixed to the new LCD screen.

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Hello everyone,
I'd like to know how (if possible) to make it so that my laptop does not automatically change screen brightness when plugging in or unplugging.

You see, there is a brightness setting that is saved for plugged in and unplugged, and when you change between plugged in and unplugged it reverts the screen brightness to that saved level.

For example if you have it unplugged and you set the screen brightness to 100% then plug it in, it saves the unplugged screen brightness to 100%. Now when you're plugged in you change it to minimal brightness. Later when you unplug and leave the screen brightness will revert back to 100%.

I'd like to disable this automatic screen brightness change.
Thanks for reading.

A:Stop laptop from changing screen brightness when plugging in

Which OS are you on? Say you were on Windows 7 there is a setting to change the brightness, but some laptops don't work with these settings.

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Trying to locate a replacement power cable for a 27es Display Monitor. Thanks

A:replacement power cable for a 27es display

Which cable?   Please be more specific.

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I had very low local hardrive space (300mb) and disk clean wasn't working.So I did a full reset,it failed at 66%.I then turned on my  pc and it asked for the  power on password,which I entered,it went to the hp loading screen,but then again asked for the power on password(does this repeatedly).So I then tried entering the bios after the power on password and it asked for my admin password,mine didn't work? Please can u help me. I would really like it to be able to reset and use my laptop again.Could using hard reset do the trick,if so how do you do it on my laptop?

A:Hp notebook stream 14 ,stuck on power on password display

After entering incorrect password 3 times you should get a message System disabled and a Halt code. Post that Halt code here to get a passcode for Admin password.http://bios-pw.org/

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Hi all,

My boss is in Arizona and when he plugs in cable at his sister's place, he cannot get on the internet but she can. Is there some configuration he needs to do?
Any help would be great!

A:No Internet After Plugging In Cable

By "plugs in cable" are you saying he is trying to connect to a broadband modem, router, or ?

Is he rebooting the modem or router and then booting his computer?

Is this computer usually used by plugging a cable/dsl modem into its ethernet connection or does it usually use a modem connected to a regular phone line and a dialup ISP?

Has he tried the "New Connection" wizard in Win XP?

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i have two laptops,

both are connected by wireless to a speedtouch router. Also, i used to have them both connected by lan cables to a netgear hub which allowed ethernet. Now that i have them connected to the wireless, when i plug in the lan cables between the laptops and the netgear router, the wireless no longer works... any ideas? thanks.

A:plugging in LAN cable destroys wireless

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The title is somewhat misleading. This event happens maybe once every 20 plug-in attemps and only when I'm slightly up or down from a straight push in.
The device doesn't matter.
The port in question is one of four on the front panel of the case. The rebooting only happens with one port. Never had a problem with the other three.
I haven't pulled the front of the case because it happens so infrequently.
However, I would like some suggestions on the possible cause.

A:System Reboots When Plugging In A USB Cable

As the doctor says, if it hurts don't do it. It sounds like a bad port. Stop using it.
Antec sells the replaceable front port assemblies. Check their website and see if they have one to fit your model of case. They range in price from about $6-$12. It's not likely you'll be able to repair the port.

Antec Spare Parts Link

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I'm having a tough time diagnosing an issue a colleague of mine is having. Basically the problem is that whenever this user plugs in a LAN cable his computer would blue screen with the error 0x40000080. After analyzing the crash dump all signs pointed to "e1e5132.sys" driver for Intel® PRO/1000 Adapter NDIS 5.1 deserialized driver. A quick google search revealed a lot of other systems experiencing the same problems so we decided to install the latest drivers from both Lenovo and Intel as the system was previously using Factory Image software. The updates had no bearing on the blue screens as it continued to occur so we tried to re-install the operating system "Windows XP Pro" and saw the same problem creep up. This machine is a Lenovo T-61 so we contacted Lenovo and they replaced the system board citing bad hardware. The next day the same thing happened, in fact it happened to 3 machines within the same department who were all purchased in the same bulk to the best of my knowledge. This user was so frustrated that we switched him out with a brand spanking new Lenovo T-61 right out of the box. The only remains from his old systems were Documents copied over and E-mail .pst files. About a day later "Boom" blue screen again, same culprit according to the Minidump. I want to think there is some files on the system that possibly got copied over that were corrupt but frankly I'm running out of options on this one.I would appreciated some assistance... Read more

A:Stop Code Upon Plugging In Lan Cable

Read This...and specifically, make certain to follow These Requirements.Post back and let us know if you are now able to connect to the LAN without the bsod. Thanks!

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Hye guys, got a quicik question to ask...

I just moved back up to school and I just didn't feel lik lugging my TV all the way here. Didn't think I'd miss watching it.

Its been 12 hours and I need a TV again haha


I have cable through my coaxial running into my room, but the only video output device I have is my LCD monitor that has both DVI and D-SUB inputs. I also belive my motherboard has an RCA video IN as well.

Basically, I wan't to be able to watch TV on my monitor/computer.

Any help would be great


A:Plugging coaxial cable into LCD Monitor/PC

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I have this weird issue where my notebook starts to stutter after coming out of hibernate whenever the power is plugged in. The mouse doesn't move, the audio goes out, videos stop, and sometimes I get a black screen that disappears in ten seconds. Sometimes after the black screen I get a message saying my video driver recovered. I am running a nVidia 8600M GT with up-to-date drivers. The problems usually resolve if I restart but it's really irritating that I can't get out of hibernate without this stuttering. Switching back to Vista also fixes it. I've tried reinstalling drivers and reformatting with a clean install of Windows 7 neither of which helped. I didn't have this problem with Vista although I had another power issue in Vista (which I still have with 7) where if I put my computer into hibernate with the power plugged in, the computer wouldn't start again until I unplug it and take out the battery.

Would be great if someone could give me an idea of what's going on. Thanks!


A:Plugging in notebook computer causes stuttering

Did it just start doing this recently?
If so then you could try doing a system restore to an earlier time and see if that helps.

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So tonight I shut down my computer and unplugged the VGA cable from my graphics card and tried to plug it into the VGA input on my motherboard. The reason for this was because I tried switched from dedicated graphics to integrated graphics (Long story). When it was plugged into the motherboard I tried switching my computer on and my monitor came up with 'no signal' and the light stayed orange. So I tried to plug The VGA cable back into my graphics card then I still got no signal!

II've tried everything from re-seating the graphics card and RAM to trying different monitors and cables. It simply isn't working and all I did was unplug the VGA cable from my graphics card into my motherboard VGA input. I can't post any detailed system info as I am writing this on my iPod (very time consuming!) as I can't even do anything on my computer. But my monitor was displaying everything perfectly fine before I unplugged my VGA cable (when my computer was shut down) I don't see what's causing this.

Any help will be greatly appreciated.

A:No signal from monitor after plugging VGA cable into Motherboard

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Hi everyone!

Recently I bought a new Full HD TV, it's a Samsung LE40B530. I'm trying to get this TV connected to my Compaq Presario CQ50-100ED laptop from hdmi output to the hdmi input on the TV. The videocard is a GForce 8200M. The latest drivers are installed.

The problem is that when I connect the two, the laptop screen goed black and the TV says 'No signal.' Pressing the FN F4 does not work. Also I'm not able to get back into vista on the laptop. The screen stays black even after unplugging the HDMI cable. I have to hold the power button to switch the laptop off. Not a good thing.

Any tips or advice?


A:Black screen after plugging in HDMI cable

More info, are you using the right input screen on your Samsung? Why a laptop? Does anyone use a tower computer anymore??

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I have a VAIO VGN-AR61S running Vista Premium

Having a Blue ray drive, I wish to play HD movies on my TV... However, when I plug in the HDMI cable, my machine crashes.

If it is already plugged in, my machine won't boot up.... It reports a Hardware error.

If I plug in when up and running.... 'crash'......blue screen.

In panic I didn't take note of error codes....and I obviously don't wish to repeat the exercise .

Any suggestions would be greatfully received.



A:Plugging in HDMI Cable crashes my laptop

This is not a networking issue, I'll move you to the correct forum.

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Hi.. think I might a problem with my hardware here.. sometimes when I plug in my RJ45 cable, the screen goes black but it's still on as I can see the outline of my windows. This happened before when I plugged something into the USB port next to it. I took the RJ45 cable out, and the screen was fine again..

Anyone have any ideas? Is my laptop deteriorating? hehe

Model: IBM R31
Operating: Windows XP Professional

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Wifi turned off when plugging ethernet cable and i really want to use them both for wifi sharing or other reasons

A:Wifi turned off when plugging ethernet cable

I Personnally solved this problem by going to bios settings and disabling LAN\WLAN Switching optioni think that's working on all hp pc's since you got LAN\WLAN Switching option in bios settings

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I have a Lenovo Y50 Laptop.

Seems that everytime I plug an external monitor via HDMI cable, I'll get a Blue Screen, the Laptop will restart and then it'll be working just fine with the 2nd monitor.

I'm new here, so please tell me if I need to do anything else.

Thanks in advance for any help suggested.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.
Locale ID: 1033

Additional information about the problem:
BCCode: 3b
BCP1: 00000000C0000005
BCP2: FFFFF8800636D2CE
BCP3: FFFFF88027A8DB80
BCP4: 0000000000000000
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

A:Plugging HDMI cable into laptop BSOD

Complete this tutorial so our experts can have a look.

Blue Screen of Death (BSOD) Posting Instructions

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Hi all,

I'm at a dorm room with cable internet. It usually works fine, but now if I unplug it, then plug it back, the computer doesn't connect to the internet anymore. Sometimes it says it's acquiring network address, but that doesn't change. The computer connects to the internet fine if I turned on the computer with the cable already plugged in.

Another computer doesn't have this problem with the same cable, always able to connect after being unplugged/plugged. Both computers are on Win XP.

I suspect the Windows firewall has something to do with it, if only because it is turned on the the problematic computer, and not on the other one. I couldn't turn it off, however, because it doesn't let me open up Windows Firewall Settings, giving me the message that the "associated service is not running" and whether or not I could like to start it. If I click "Yes", it simply says it "cannot open Windows Firewall/Internet Connection Sharing service".

Please let me know what the problem might be and what i can try to get it working again. I hope I haven't given too much useless information.. haha. Thanks!


A:can't connect to internet after unplugging then plugging cable

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Ok, I've already ran all the things to not be infected with a virus. What I did in order, removed the drive scanned with nod32, reinserted the drive, ran in safemode networking: spybot, malwarebytes, removed bad files, ran smitfraudfix, then combofix, unchecked things from msconfig, used hijackthis to remove bad things. Rebooted to regular windows, and cant get on the net. The system still responds but its almost like its having issues getting an ip or something. I also tried winsock fix, but it hangs also. Ive had this problem on two seperate computers. What I believe it to be is some registry problem or permission change by the previous viruses i removed. Please dont give me the usual virus scans etc routine. I've been doing this awhile I know how to get rid of viruses. This is separate issue, please help or point me in the right direction. I also had an issue installing avg with the error code 0x80070005, but i solved this by deleting the two DENYs in permissions. Do you think this is a similar issue but a different permission? Its not also a bad NIC card or anything like that because i used a USB nic and same thing, and also i am unable to do a system restore, yes the service is running, but it wont restore. Any help with this?

A:Computer Stops responding after plugging in ethernet cable

btw the other computer that had this internet issue, had the same error code when trying to install avg. some how it has to be related

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Hi all,

New to this forum and I am sorry for this long post.

In 1998 I had house built that included a Lucent Homestar Wiring System ( Series SC200).
Up until know I have provided a Wireless network throughout the 3level house with some pretty good success. I thought I would take advantiage of the Homestar features which were suppose to allow me to use a wired Network through the house.

So i Bought a Linksys Cable Router and a Linksys Switch. I moved the Cable Mdem to the Basement where the HomestarBox is located. Hooked up theHomestar to the cable modem pluggd into to the router. Hooked up the router into the switch . From the swicth plugged into the Homestar Panel. (BTW Had my laptop hooked into the same switch using cat5 cable and I was able to surf internet)
The phonejack are dual mode allowing me to plug in a cat5 cable or a rj11.


Does anyone have any experience with Homestar?
Am I missing something in my Setup or my Logic?

As I said in my profile I know enough to be dangerous. I have built my own computers and setup and troubleshooted wireless networks, Also do room to room sharing of 2 tivos over a wireless g network.

Any help or suggestion would be appreciated.

Happy New Year

Paul in ATL

PS if this post does not match this forum please feel free to suggest the correct forum. THanks

A:Plugging in CAT5 Cable kills dial tone

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Product number: D1C68UA#ABA Serial number: CND3130F7F Hello, I am having trouble with my wifi connectivity. I've noticed that my wifi connection is generally much stronger and stable when I am not plugged into the the power cord. When I plug in my power cord to charge my battery, My wifi signal always loses strength, and most times loses connection. If i unplug the cable once more, the wifi signal will regain strength. I've updated my drivers, reinstalled a couple as well. I've also changed my power options for the Wireless Adapater Settings to Maximum Performance. Still this problem remains. Please help. 

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I have a desktop with a 25 pin cable running to my printer, and want to print from my Dell D400 laptop to the same printer. The D400 does not have a 25 pin socket so I bought a USB to Parallel Printer DB25 Cable. But I can't get anything to print from the D400. I've put the original printer cable + new adapter cable into a USB port on the D400 but cannot get a signal of any sort to the printer.

I guess this is to do with selecting the right port; through Control Panel > Printers & Faxes I have set this as an HP Laserjet 6P printer. The port options are LPT ports, COM ports, USB virtual port, or Microsoft Document Imaging Writer Port. None seem to work for this.

With the desktop, when I plug the new adapter into a USB and leave it on LPT1 it prints fine, so why am I not getting a whisper from the laptop?

A:USB to Parallel Printer DB25 Cable not plugging and playing

With the desktop, when I plug the new adapter into a USB and leave it on LPT1 it prints fine, so why am I not getting a whisper from the laptop?Click to expand...

This doesn't solve your problem; but, I haven't had good luck with those adapters. Either they work or they don't. May be because those adapters just don't work with some computers and some printers.

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Greetings everyone,
Im not too tech savvy so I will try and explain exactly happened and hopefully get some assistance. I have an HP G42 AMD Turion II Dual Core Notebook that I am using for school (had the laptop for a year now, Windows 7 installed). I use it for watching movies (using GOP player), listening to music (itunes), completing term papers and attending online courses. I recently purchased an HDMI cable to watch movies from my laptop to my tv (I have an old Hitachi CRT 1080p w/HDMI compatibility), and when I plugged the cable in my laptop screen turned black for a brief moment, resumed normal and then completely froze. The only thing I was able to do was power it off and attempt to restart. I tried to restart the laptop and was barely able to type in my password as the welcome screen before it froze again. I can run windows in safe mode (both network and cmd prompt) but I cant run in normal. If more information is needed to troubleshoot I will be more than happy to provide. Thank you for your help!!!!

A:Laptop permanently freezes after plugging HDMI cable???

try a windows restore point to an earlier date when all was ok

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Hi my ideapad 110 14IBR just turned off when I tried to put a HDMI cable in. I turned it off ten turned it back on and the light comes on but the screen doesn't turn on. 
Mod's Edit: Additional information added to Subject line for clarity of issue and moved post to its own thread.

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I have an M1330 with the Intel graphics and the LED backlit display. I'm running Windows Seven RC1. I cannot adjust the brightness of the display at all in Windows Seven - it doesn't matter if I use the FN+Up / FN+Down keys, the brightness option slider bar in Windows, or adjust it in bios. The back light is either at 100% brightness, or it's off completely.
Anybody know of a fix for this?

A:Why can't I adjust the display brightness on my M1330? (using Win7 & LED backlit display)

This is a beta operating system - presumably the problem will be fixed before late October when WIn 7 is released.  For now, you cannot expect a manufacturer to support an OS that has yet to be released.

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Whenever I plug in any USB device, the monitor will go blank, but the case fans and lights will continue operating. The computer remains like this until I hold down the power button to turn it off and then restart it. It will restart fine. In addition to the monitor going blank, all power is turned off from USB devices (e.g. optical mouse light turns off).

This occurs probably about 25% of the time I plug a USB device in (sometimes nothing happens, as should be).

It does not mater which port I use. It's happened with rear ports, a hub wired to a rear port, front case ports (plugged into motherboard USB pins), or a PCI USB hub.

I've looked extensively for solutions and can't find any. I checked my motherboard multiple times for swollen capacitors and have not found any.

Today (and never before) when I plugged a mouse in, the same issue occurred, but the monitor turned back on about two seconds later, and a pop-up notified me of drivers successfully being installed. (I didn't notice whether USB power was cut) This makes me think that the computer is adjusting the display (as it does when a program requests administrative permission and the screen sometimes goes blank) but for some reason does not come back from it. There really is no indication that Windows stops. I never get a BSOD.

Operating System: Windows 7 64-bit, regularly updated
Display Adapter: Nvidia GeForce 9600 GSO (756MB)

Let me know if you have any ideas. Thanks a lot.

A:Plugging in USB device causes display to go blank

I'm not sure whether this is the correct answer, but you may need to re-install your chipset drivers.

If it is a self-built computer you should be able to get them from the motherboard manufacturer.

If it is a computer bought from a manufacturer then you'll need to go to their driver support site.

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I am installing a new motherboard, which 2 pins on the motherboard do i plug in the switch that turns on the computer?

A:plugging in a switch for power

Look at the documentation and it should show you which pins on the switch header are the correct ones. With out you providing any information we can not even begin to answer that question properly. You should always include system specs if when you ask for help finding a solution.

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Hello all,

I built an Athon 64 3000+ about 2 1/2 years ago, and had no problems; then one day in the middle of an e-mail it up and shuts off on me, refusing to turn back on. I've detached every piece of hardware from the motherboard, including the CPU, with no effect.

With just the 20-pin power supply connector, the fans run, there is power to the motherboard, and the motherboard lights inform me that the CPU is not posting (as one would expect it not to with no power and now no chip). However, the minute I plug the extra 4 pin 12V supply in to the motherboard, the whole thing shuts off. The 4 pin connector reads 12V when the 20 pin connector is plugged in.

Any ideas? The MB is an MSI K8T Neo. I didn't jostle it before turning off, I don't think, and a 300W power supply I have leads to the same effect: the fans run with the 20-pin connector in, but as soon as the new PS's 4-pin 12-V supply gets plugged in, everything shuts down (no fans, no MB lights).

Thanks in advance for any help!

A:Plugging in 4-pin 12V supply causes power to shut off

At the least you must try another power supply. It could be any rail, or a short, that is causing it.
And if it's not that, I would suspect the CPU or motherboard died.

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Is it possible to get a sound notification every time i plug and unplug my power cord into my laptop ? There is no notification lights around the power jack in Sony Vaio . So after i plug in power i have to see the notification area to check whether the laptop is plugged in properly . Is there a way to get a beep sound when i connect power ?

A:Sound Notification when plugging power


I do not know of a way to do that, but check in Control Panel>Sound>Sounds and take a look around.


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I have a sony vaio with xp home edition. I have a diagnostic program that I can plug into my car to see how it is running and pull codes off the ecu. When plugging the car into the vaio tonight I heard a quick 1/4 second whine like zip sound and then NOTHING! I brought the laptop in to look at it looks fine, smells fine. Plugged it in NOTHING! It's like there is no power getting to it at all. Does anyone know what happened? My guess would be some type of surge through the cord connecting the car to the computer. CAN THIS BE FIXED? Please advise! I need to get this up and running immediately... THANK YOU!!!!

A:Vaio's power supply out after plugging in USB

Please Help!

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Two issues I've had since I got this thing years ago. To repeat an earlier post that was never sufficiently resolved:
I noticed that half the time, when i plug in my adapter to charge my laptop while I'm using it, it goes to sleep. I know it's asleep because (a) the fan stops running and (b) it's woken up quickly using typical methods to wake a computer. Anyone got a clue about how to prevent it from auto-sleeping? Thanks!
Add to that: the video freezes up when watching various videos - youtube, dvd's, VLC player, anything where the screen is showing a video.
Both are a constant nuisance and the recommendations of updating the bios, all drivers and such are a waste of time. On the power issue, should I replace a part on the motherboard or add something?
I'd like an answer. If I have to "replace the motherboard" please share a model that will fit and work properly but will NOT be a 5558 because I don't want to have to go through that and sill have the same issues. At this point wanting to brick it and get an HP laptop.

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We have the same problem, and we noticed if we press down with our fingers on the top and back of the laptop right near the power cord jack the problem resolves. What problem would that represent? 

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This is so odd. I'm running Windows XP SP2 on Dual core INtel with 1 gb memory.

I've installed a front USB panel that has 4 ports in front and 2 more on the PCI card which it's attached to. (added on peripheral).

I can deal with the "this device can run faster if plugged into a 2.0 device" but what is really frustrating is that if I plug in 2 or more USB devices. At least one of them won't work.

This computer is in my family room and wirelessy networked to my other computer in another room. I use a Motorola USB device to connect for the purpose of printing stuff off the printer in the other room.

If I have too many USB devices plugged in - there doesn't seem to be enough power to allow the wireless connection - resulting in not being able to print.

This isn't the only issue. I have some software that requires the USB "key" in order to work. If I need to use that software using the "key" and then I need to print something from that particular software to the remote printer - I have to save it to my desktop firsti - then disconnect the "key" and then I can print.

Do I need a bigger PS? I have a 500W now. I thought that would be big enough. Perhaps the USB issue isn't related to that at all? Is there some way to regulate how much power is assigned to USB devices?

Since my computer is in a desk against a wall - it's very difficult to plug and unplug stuff into the rear slots. Hence the install... Read more

A:Loss of power when plugging in multiple USB devices

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I'm having a problem with my laptop (HP 6530b) locking up when I plug in the power cord.  This happens when I'm actively using the computer on battery and then plug in the power cord.  When I do that, I get two beeps and the computer freezes. Nothing else is plugged into the machine at the time.  Any thoughts on what may be causing this?  I'm also experiencing occasional BIOS errors (501) which may or may not be related.


A:Laptop Freezes when plugging in power cord

Mine is doing the same thing. Any thoughts out there?

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Hi all,

Acer 7740g, Windows 7 HE.
I have this annoying problem that when my AC power is plugged or unplugged it makes a beep.
Muting the sound completely helps, but that's sometimes not an option.

I tried the following and no luck:

Editing a registry entry HKEY_CURRENT_USER\Control Panel\Sound\Beep and changed it to "No".
Uninstalling the Beep device from my device manager.
Turning off my pc speaker, unfortunately, I didn't find where I can disable it.

My sound card drivers are: Realtek

Anyone has another idea?


A:Annoying beep when plugging/unplugging AC Power

This forum is for "Business Applications", not hardware problems.
Please post on the correct forum which is "Hardware" here: http://forums.techguy.org/19-hardware/

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Ok so here's the deal. I just plugged my PSP into my desktop and suddenly all of my peripherals stopped working. I took the psp out out and restarted my machine, but it would not power back on.

Heres what i've done so far:

-unplugged everything; reset the bios battery;turned the psu on and off

-unplugged /replugged in all the important power plugs for the machine

-reset the 6-way that i plug my pc into

I have attached this psp to this machine before with no problems. After doing the steps above, I am ****ing clueless as to what could be going on. also, my mobo power light is green(implying that power is being run to the machine)

any ideas fellas?

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Hello. I have a very frustrating and unusual problem. When I connect my power cord to my laptop, I lose connection with the network and internet. Zap. Gone. If I unplug my power cord, TADA, it comes back! Oddly enough, my wireless network card is not affected by this madness - only my wired LAN card. Any CLUE as to what could be causing this unusual problem?

My gratitude,


A:Plugging Power Cord in Causes Network Disconnect

Please perform the following, so that we can get the exact specs of your computer. This will better assist us in helping you more.Publish a Snapshot using SpeccyThe below is for those who cannot get onlinePlease take caution when attaching a text file to your post if you cannot copy/paste the link to your post, you will need to edit it to make sure that your Windows Key is not present.

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Hi all,

Acer 7740g, Windows 7 HE.
I have this annoying problem that when my AC power is plugged or unplugged it makes a beep.
Muting the sound completely helps, but that's sometimes not an option.

I tried the following and no luck:

Editing a registry entry HKEY_CURRENT_USER\Control Panel\Sound\Beep and changed it to "No".
Uninstalling the Beep device from my device manager.
Turning off my pc speaker, unfortunately, I didn't find where I can disable it.

My sound card drivers are: Realtek

Anyone has another idea?


A:Annoying beep when plugging/unplugging AC Power

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I recently upgraded from Windows 8 to Windows 10. Afterwhich, everytime I plug the power cord, my screen goes black but when I remove it, the screen lights up again. Already checked power settings but I'm pretty sure its not the issue. Please help.

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I have a three port SATA controller PCI card, into which I successfully ran two 500GB SATA HDDs. One of them had the old-style 4-pin power socket (PATA IDE drives), while the other needed an adapter cause it was a SATA power connector only.

Anyway, all was fine until I purchased a third SATA drive and plugged it into the remaining slot, situated on the out-facing metal plate of the controller card. This one also needed a power adapter for my old-style PSU. The new drive worked fine, but the second of the two original drives fails to load.

First of all, am I right in guessing that it's not a power issue? The reason I think this is because in the past when I've plugged an unpowered drive into the SATA controller, it renders the SATA controller useless, and none of the SATA drives appear in My Computer. So, because I can get two out of the three drives to work simultaneously, am I right in thinking that it's not the power?

Is there some sort of SATA BIOS that I need to tap into to enable something? How is this done?

Any ideas?

A:Solved: SATA HDD #2 fails to power up after plugging in HDD #3

Should I just accept that this is infact only 2 port, and that the 2nd and 3rd slot are shared between one inward facing slot and one facing out of the computer case? Or is there some way to enable the 3rd port?

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