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pavilion dv9600 start screen blank if screen not fully open,...

Q: pavilion dv9600 start screen blank if screen not fully open,...

pavilion dv9600 entertainment start screen blank if screen not fully open, external screen fine and shows login infoif fully open all is fine, after login screen to the pc it can be partially closed or pulled back and will operate in the window environment perfectly

Preferred Solution: pavilion dv9600 start screen blank if screen not fully open,...

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A: pavilion dv9600 start screen blank if screen not fully open,...

Hi @reneC, Good day! Thanks for posting your question in the HP Community. It is a terrific place to find answers and tips and to have the best experience in the HP forums. I read the post regarding issues with the display which works at a specific angle. I?ll be glad to assist you with this. You are a valued HP customer and we appreciate you greatly for doing business with HP. I have reviewed the situation and it is paramount that we address your issue. Thank you for giving us the privilege to assist you on this platform. You?ve done some awesome diagnosis and troubleshooting. Kudos to you on that score. . I would require more information regarding this to assist you better. When did this first occur? Please provide the complete model# of the unit.As this is an older computer, service options with HP may not be available as the parts for this unit is not supplied anymore by our business partners. I request you to contact a technician locally, like Best Buy or Staples and get the situation corrected. Hope this helps. Let me know how this goes. I genuinely hope the issue gets resolved without hassles and the unit works great. Please reach out for any issues and I'll be there to assist you. To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as ?Accepted Solution? as it will help several others with the same issue to get it resolved without hassles. Take care now and have a splendid week ahead.

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pavilion dv6000 start screen blank if screen not fully open, external screen fine and shows login infoif fully open all is fine, after login screen it can be partially  closed  or pulled back and will operate 

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When opened fully (at right angle) the screen is blank. I can initially see a very dim Thinkpad logo on boot but nothing else, no BIOS, grub or luks screens. Also during this time the bluetooth LED on the inverter is on. The thinklight still works as does external display: If I move the screen down towards the keyboard the display comes on and I can see the screen as normal and other inverter lights come on such as the battery light.WHILE DISPLAY IS DOWN IN KEYBOARD   PLEASE ANY ONE SUGGENST ME WHAT SHOULD I DO?    

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Initially my system got crashed while running and when it was recovering in the blue screen, I instead of letting it complete the recovery , hard booted my system by pressing power button for few seconds. After which when I started my system, I am constantly getting Blank screen on my laptop, even tried to start my system in Bios but no help, tried pressing various function keys at startup of windows like F2, F9, F10, F11 and also tried Esc key. All the time getting blank screen only. Even tried to remove any external usb and remove power cord and then battery. After pressing power button for few seconds, putting battery  and power cord back, still no use. Even tried removing the RAM and putting back. Also tried connecting to external monitor to check if there is any issue with laptop screen, didn't worked. I understand its probably an hardware issue, but I want to try to fix the issue myself instead of taking to service shop. Would really appreciate any sort of help regarding my issue, I have already went through numerous blogs but no help.  

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Please see the picture below. This error happens randomly when I close my lid, and/or move my laptop fast from one place to the other. I get either the error screen below or a blank screen. Both the error screen below and blank screen require me to hold the power button down and reboot my W530.
Has anyone ever experienced this error? What is the cause of this issue? Does anyone know of a fix that won't void my warrantee? 
Link to image
Moderator note: images larger than 50k converted to links per forum rules:  Lenovo Community Participation Rules

A:ThinkPad W530: Blank Screen/Weird Colorful screen on Lid Open

Looks like a loose/damaged connection between the display and the laptop. no way to fix it without opening the laptop. Which warranty do you have? if you have the on-site, they send a tech or parts out to fix it.

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I have here my Mother in Laws C670-14D and its developed an issue whereby when you power up the screen is blank. it does have backlight and you hear the windows startup sound that you get before you login as windows starts up.

I can see the screen if I start in safe mode, in fact I'm using the PC in safe mode as I type this.

I did hae a similar problem in the past with another Toshiba laptop and that was windows 8, the issue was connected with power save settings but I've tried all of those and no luck. Also tried the remove battery suggestions, nothing has worked.

I'm guessing windows has done an update that is causing this but I'm at a loss and google has turned up nothing.

Running Windows 10 Home edition 64 bit

Any ideas anyone?

Thanks in advance


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I have an Acer AspireOne D150-1322. When the netbook is open less than 45 degrees I can view and work on the computer, but if I open it greater than that the screen starts flashing Grey, White, Red, Green, Blue, and other colors like it's during a screen test.

When I lower the screen to less than 45 degrees it is ok again. If I connect an external monitor to it, the display on the external monitor is fine if I open the netbook all the way, but still flashes different colors on the netbook.

Anyone seen this before?


A:Netbook Screen Not Working When Fully Open

My initial thoughts would be a dodgy connection somewhere. How old is the machine, is it still under warranty at all?

If not, you could always take the screen casing off and check the connections to the screen / inverter board. They are normally just plug in type cables and may have become loose.

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HP Pavilion G6 shows Black Screen on start up; have tried all the HP recommended work-arounds to no avail.

A:HP Pavilion g6 w/blank screen

Hook up the laptop to an external monitor. If that works then the LCD screen has failed, and needs to be replaced. If you get nothing with the monitor, but the computer sounds like it is booting up, then the video chip on the motherboard has failed and you will need to replace the motherboard.

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I have turn my notebook on twice and it was fine. After 1st time charge and the screen stays blank. The power n cap keys lights up tho. I would try hard reset but battery is built in. Any suggestion?

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I really need your help guys.
I installed some drivers for my iphone, install with no props, when asked to restart, I do.

(This have nothing to do with the iPhone)
When computer automatic power on, no screen is shown, no boot, and all LED's is on.

1st try:
I let i stay that way for 20 mins, when i look to it, the fan is running like hell, and ite hot! - FAILED

I let it cool off, and try to power it on with alt key pressed - FAILED

I take out AC, then battery and hold down power button for one minute, plug in AC and try again - FAILED

I take out HD, RAM, RTC battery, let it stand empty for and hour, put it all back - FAILED

I try to take out only RAM's and plugged them back in every diffrent way i could - FAILED

6th and last:
Plugged out HD, turned on the computer, and it acted like it never had been removed - LOL?

Im pretty stucked right now, all tests has been done in every diffrent way, with AC in and out.
Also had tried with boot cd in, and have read so many post here and on HP support with no luck.


A:HP Pavilion DV6 - Blank screen, no boot, LED's on

Oh, and its a HP Pavilion DV6 - 2150so
Windows 7 Home Premium x64 OS

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Hi I have a pavilion p6 2442ea tower  all was working fine and 1 day I switched it on I got no beeps just a blank screen the fans all work OK, so I trI'd all the tips I was given but no luck ,and by mistake I left it running and a few days later I just come on all working fine for about 1hour but then it just stopped and went back to a blank screen  . Any help pls many thanks

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It seems like some virus. When I start the laptop,it starts fine and then yahoo messanger pop up comes,but the background remains blank.If I close messanger window, it remains blank for few minutes and then again messanger pops up. I cant open anything thru shortcut keys from keyboard.
OS is windows vista.It will be great if i can get some help.
thanks inadvance.

A:hp pavilion dv6000 screen blank

Hi sktomer777,

You said that your background remains blank. Can you see your desktop icons?

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Laptop stopped displaying after leaving it for an hour assumed it hibernated.  Attempted to wake it up with the space key, no luck.  Rebooted the system, no luck.  Noticed constant blinking led's on Cap Lock and Num Lock.  Left it off and plugged in for 2 days, it fired up.  Collected important files decided to reboot system, no luck since (about a month now)  History: started with XP updated to Windows 7 pro, then got updated to Windows10 pro.  Recent Battery messages at start up.  Decided to replace battery to see if this would solve the issure.  Left it Charging (think since no feed back) and attempted reboot, no luck.  Will attempt to recharge BIOS battery.  Have attempted RAM reinsertion method.  Noticed dark discoloration on the back of lid, could be indications of a burnt display.  Any other opinion/suggestions on trouble shooting would be appreciated  Thanks in advance all

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i have a hp pavilion g6-1015eei shut it down last night went to it today try to turn on i can here the fan but get a blank screen any help welcome

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Hi I have a pavilion p6 2442ea tower  all was working fine and 1 day I switched it on I got no beeps just a blank screen the fans all work OK, so I trI'd all the tips I was given but no luck ,and by mistake I left it running and a few days later I just come on all working fine for about 1hour but then it just stopped and went back to a blank screen  . Any help pls many thanks

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Hi, I've been having problems with my display whenever I login.  When I login, the screen goes blank, but is backlit.  It will remain like this even if I close & open it.  The only thing that changes it is restart, where the screen goes to normal... until I login, and the cycle repeats.  Any help would be apprieciated!

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i have problem with my laptop the screen is blank,but it work perfectly with an external monitor,i therefore assume the screen is faulty.replaced the new screen have not resolved the issue.Anybody has got any ideal i would be appriciated.

A:Hp pavilion dv6500 screen blank

was the screen replaced with the correct make and model...?

Did you change the inverter over from the old board or did it come with one, (inverter: a small board usually across the bottom of the screen)

when you fitted the board did you make sure you seated all the conenctions properly..

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This problem has been persisting for a while now. Whenever I try to turn on my computer, the lights go on like it's booting up, but the screen stays completely blank. Not just dim or black, but off, completely blank. In other words, the computer essentially can't turn on. Any ideas?

A:HP Pavilion dv7 screen issue-blank

Nothing? Come on people

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Pavilion boots up with no display this morning. Audio bootup is heard from Windows.wifi blue light on.power and speaker LEDs on.flashing led on hard drive flashing so accessing hard drive. tried... hardware reset.remove battery and drain charge from depressing power button while off and disconnect power.all external devices disconnected. same problem after hardware reset. appears so is running but no display.

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Hey there guys, i got a problem with my laptop and i spend some time to find a solution but came to none. So, my problem apeard after i cleaned my laptop from dust. When ever i turn it on, i only get blank screen but the led power button is on and i can hear the fan running. Now here is the odd thing, if i remove my HDD and then plug it in back the laptop will work, but after the 1st restart it will not work again, i did check my HDD for errors with HDD dst check, so can anyone help me with anything please? I tried removing the ram and then check again but none. I tried external Monitor still no luck. Thanks in advance.

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first of all, i have no background knowledge of this laptop, i was just givin it whenever one of my friends was fustrated about this problem.

Anyways, bacl to the laptop, whenever i turn it on the screen does that little dim light where you can tell the screen has power, then shows the HP logo. once the HP logo is gone, it goes right back to that dim lit screen and stays like that.

ive tryed waiting it out but after about 4 hours it still did that screen problem. the solution of taking out the battery and holding the power button did not work for it eathier, i tryed it multiple times. also pressing f8 or f11 at start up does not show up with anything.

I do not care about any files or programs on this computer, i just want it to work normally, i am probably going to end up selling it anyway so dont worry about trying to save my files while fixing it

thanks to anyone who can help me, this is really annoying me.

A:(kinda) blank screen when HP pavilion is booted up, help?

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I unplugged the power cord while my laptop was still on. It continued to run. I left it for a few hours and forgot that it was unplugged. When I came back it would not boot up and the screen remains completely dark. It just beeps for a total of ten times in what sound like five groups of two closer beeps. The light on the caps lock button also flashed with the same pattern.So far I have done a hard reset, reseated the two RAM cards and pulled the RAM cards out one by one and trying to start it with one card out or swapping them. The symptoms remain the same.I found a page that said two blinks or beeps mean there's a problem with the BIOS.Any help or suggestions?! Thanks!

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Plz anybody help yesterday i my dad gifted me a pavilion x2 windows 10 at morning it was working properly but after i had breakfast and tried to power it up the screen was on but it was blank only i can see my cursor plz help

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I have recently installed a new processor to my PC after the old one fried I kept getting a blue screen with a error message A_CLOCK_INTERRUPT_WAS_NOT_RECIVED_ON_A_SECONDARY_PROCESSOR_WITHIN_THE_ALLOCATED_TIME_INTERVAL after a whole lotta blue screens now the PC will turn on but nothing shows up on my display is there any way to fix this

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Recently, when I start my computer, the Asrock splash screen appears, followed by the pulsating windows logo. Once this is done, it moves on to a black screen with only the cursor visible. The cursor is movable but no key commands seem to do anything. Eventually the desktop appears but it can take up to two minutes and seems to be getting longer every time. I was also looking at my event log and found this entry: "The Religious Religion service failed to start due to the following error:
The system cannot find the file specified." I'm not very knowledgeable on the subject but "The Religious Religion service" sounds a lot like a virus. I'm not sure if these two things are connected, and an AV scan has turned up negative. Thanks for any help.

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Hello there, Recently, the screen on my 23xi monitor started to go blank after some usage (the time varies).  When this happens, the power light on the right corner of the monitor remains lit, however the power button doesn't do anything when pressed.  I don't think it's my computer putting it to sleep, since I've already checked my power settings for that, as well as the ones on the monitor's OSD.  The only way I can get a video image back is by unplugging and replugging the power connector located on the back.  I've had the monitor for only a year and a half.  Any ideas? Thanks!

A:Pavilion 23xi monitor - problem with screen going blank

GLP65, welcome to the forum. Have you tried the monitor with another computer?  This would be my first suggestion.  This will let you know if it has anything to do with your computer. Please click the "Thumbs up + button" if I have helped you and click "Accept as Solution" if your problem is solved.

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Hello Everyone,

I have a hp pavilion p6126f desktop configured with an AMD Athlon 7750, 6GB DDR2 RAM, 750GB HHD, DVD BURNER and Integrated NVIDIA GEFORCE 9100. It has windows vista SP2 (home premium, 64bit) installed.

This was working great until suddenly when I press the power button this mourning and the power light on the power knob came on for a few seconds, fans etc were heard spinning up and then the light shuts off and this repeats unitl the power cable is pulled off. I installed a new working PSU with same results.

can anyone here assist me with this issue.

much thanks in advance.

A:HP Pavilion p6126f desktop restarting with blank screen

Have you checked that the CPU fan is running?

Try to boot from the Vista disc and also try tapping the F8 key at startup to see if you can get into safe mode. Report back.

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After a hard reset my laptop has a blank screen that has the hp logo that goes on and off

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I have replaced a cracked screen on my HP laptop.  Whilst the new screen is connected correctly and has power, windows does not display on the screen. I have plugged the laptop into a seperate VDU via a VGA cable and the homescreen appears.  I have performed the updates the HP website recommends, new BIOS, drivers and can see vis MS tools that the laptop has all the latest drivers but the screen still won't work. Any ideas as to why this is and how to fix it?  Thanks Since posting this message I have accessed the BIOS and that does not show up on the laptop screen either and only appears on the VDU instead so I am stuck with regards what to do next.

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hi there, my laptop does not work properly it has a problem with start up,when i press the start button it does not start just i can c blank screen with my cursor moving around, i m really frustrated of this computer, its happening for last 1 week so pls tell me what should i do.

A:HP Pavilion g series, startup problem,hangs up, blank screen...

Could you please give me the exact model number of your notebook?You can use the following document if you need assistance in finding it. How Do I Find My Model Number or Product Number?

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hi - this old dinosaur has been a good workhorse - but has suddenly packed up.  I'm wondering whether its the motherboard which needs replacing or is there any other troubleshooting to locate the component at fault. forced a hard reset, and have reset memory and hdd.look forward to your responses. thanks

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please analyze my hijackthis log. i can't log into my email account on this particular computer only. i also have other problems with links on other websites. i also have a virus or something that plays music and commercials randomly, usually after i've run a program that plays music. please help, i've been dealing with these problems for weeks.

thanks, chris

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 8:46:47 PM, on 8/7/2008
Platform: Windows Vista SP1 (WinNT 6.00.1905)
MSIE: Internet Explorer v7.00 (7.00.6001.18000)
Boot mode: Normal

Running processes:
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\Hewlett-Packard\On-Screen OSD Indicator\OSD.exe
C:\Program Files\Intel\Intel Matrix Storage Manager\IAAnotif.exe
C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\McAfee.com\Agent\mcagent.exe
C:\Program Files\Portrait Displays\Pivot Software\wpCtrl.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Hewlett-Packard\Digital Imaging\bin\HpqSRmon.exe
C:\Program Files\HP\HP Software Update\hpwuSchd2.exe
C:\Program Files\Common Files\ArcSoft\Connection Service\Bin... Read more

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Hardware Dell AMD desktop, 3 GB ram, pre-loaded from dell with Vista, SP 2 is installed.

Initial problem: Windows screen went black, Icons still show and was able to open IE. It was not full function, lost fav and it did not remember me when I went to know sites that use to have my data. Also in the lower right hand corner of the black screen it said I was not running a genuin copy of windows vista.

It would not allow me to do a restore in normal mode. Booted in safe mode and was able to restore to a previous date.

When I booted back up in normal mode all looked fine, went to start IE and it comes up with a white screen for about 3 seconds then just closes back down. Can start IE from safe mode but it still has limited function.

MCafee anti-virus is current
Installed Malwarebytes while in safe mode, ran it and it found 3 problems, deleted the files but the problem still exists. Can not tell you which MB fixed, I did not write them down.

Should I try downloading IE 8 while in safe mode, install it and then re-boot in normal mode?

Any help wouldbe appreciated.


A:IE 8 will open to a blank screen then close right away

See this MS website: Internet Explorer opens, flashes, and then closes immediately when you start it

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My laptop was working fine the other day... Came back to it the next morning and the screen wouldn't come on and it kept resetting every 30 seconds or so. Once I finally got it to boot and get to sign in page the screen was all scrambled. But, everything else worked I could log in but couldn't do anything...

Anyone got a solution?

A:blank screen and restarting laptop every few secs or scrambled screen at sign in screen

What do you mean scrambled?

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When turn on computer, everything lights up as normal except screen stays blank. Worked fine one day, next day turned it on and nothing but blank screen

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hi guys !
i have just installed a new hdd and clean install of xp on a acer veriton m261 and when needing to re-start lets say after a update from installing Microsoft updates upon the restart it goes by the option to go into bios etc and hangs on a black screen until i re-start completely , now nothing of anything unto-wards happens from a normal power up ? all good and i have never had any problems at all of this nature prior to the fresh install of xp and the new hard drive anybody can shed any light on the situation please !!

A:blank screen on re -start

Please Post your specs?


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My HP Stream 11 starts with a blank screen on start up. Responds sometimes with a hard reset but doesn't always. Have changed settings to do nothing when lid is opened or power button is pressed but still having problems.

View Solution.

A:Blank screen on start up

Hello, Thank you for posting in the HP Support Forum. Welcome ! Seems like a driver issue to me. Please, use HP Support Assistant => http://support.hp.com/us-en/document/c03467905Ensure you have applied all the latest drivers and updates from HP. Please, use Windows Update and check if you have installed all the latest patches. Let me know if this works for you.

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Was overclocking my ati x-800 though ntune, it locked up and i restarted. It doesn't show anything on the screen when I restart. I reset the cmos, but nothing. Don't know what to do next?

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Once I turn on my computer and enter my password to log in, my screen turns black. The only way that I can get anything to appear is to press control alt and delete and go to task manager. Once in task manager I go to file then new task and find where it says explorer and click on that and my home page will appear. I have to do this everytime I start up my computer. Any thoughts?

A:blank start up screen

see if this helps.. http://i.nconspicuo.us/2007/08/28/rebuild-windows-vista-icons-cache-vista-displaying-wrong-icons/

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My computer has two ram slots filled with 512 mb each, I replaced 1 ram card with a two gb ram card and tried to start my computer after I plugged it in. All I got was a blank screen. I replaced the new card with my old one and my computer started up normally. Does anyone have any suggestions? I also can't enter bios, it is just blank.

A:Need help with ram, got blank screen when tried to start up


We have a few possibilities but first try these two:

1) Verify that your motherboard can support up to 2 GB per slot.
2) The RAM You bought is defective; return it and purchase another one. I suggest 2 stick of one 1GB each.

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When pressing the power button it makes a quiet start up sound and the only indication that it is working is the tiny flashing light on the "Caps Lock" button on the left hand side of the keyboard. The system does not load and the screen is blank.The laptop arrived new only a couple of days ago, and worked fine for over 24 hours.To help me get used to using a laptop I used a wireless mouse via a small USB which went into the port on the right hand side.What appears to have happened is the AA battery in the mouse expired which caused the screen to freeze. I then removed the USB and attempted to carry on by using the touchpad, but nothing seemed to work. I replaced the mouse battery but this did not rectify the situation.With no other option I switched the power off by holding down the power button, but since then I have not been able to start up......I can hear the laptop by putting my ear very close......but the screen is blank.Do I need to send this product back...Can anyone help..?Alan

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Hello everyone, need some serious help!!!

Whn i start up my windows xp in normal mode it just comes up a completly blank screen.However, it will allow me to start up in SAFE mode.

I start running a scan in safe mode but it wont let me... think its a virus.

I have tried restoring my computer back to a couple of days ago when it was working but that wont even let me restore... think it is a virus you know peps.

Anyone got any ideas or can help me pritty please:-D

I know i can reinstall the xp disc, but will loose all my pictures and music:-(


A:Blank screen when i start up???

If it starts in Safe Mode, copy all your pics and music to CD, or USB drive, before you reinstall.


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soon after I fixed a virus on my computer, when i booted it up, after the windows welcome screen, there is only a black screen with the mouse arrow.I have tried chkdsik, fixboot, and several other commands in the recovery console.I used an cord and was able to back up all of my files, they are still in tack.I also ran the manufacture diagnostics.When i tried to start it in safe mode, the same blank screen, this time the arrow is larger.I will start fresh working through the problem if that is what is needed.I noticed last time i turned it on, the lights for the disk drive is not flickering after boot and the keyboard lights (num lock, cap lock) are not illuminated.I am just not sure what else i need to look at for a fix.Thanks,It is 3 year old dell laptop with a westerndigital hard drive running xp media center.

A:Blank Screen on start-up

Did you try the fixmbr command from the XP Recovery Console?Louis

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hey was wonbdering if ne-one could help me this problem before it goes to taking it to be repaired ..

Bout a week ago grpahics card messed up, tryed to download new drivers, didn't help, rolled back to old drivers, nout happened ..
Screen was stuck in 4bit colour, and was on 640x640 setting (thinks)
anyway tryed to restart a couple of times and adjust the screen back to normal but screen would go funny and a visual wouldn't return ..

now on start up no screen to be seen, completely black
have had trouble with black screen on start up cuz i'm on a amd processor ..

am using an acer laptop, nvidia 5700 go 64mb graphics card ..


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Product Type: Notebook
Product Model: Asus C90S
Operating System: Windows Vista 32-Bit Service Pack 1
Chipset: Intel 945 G Chipset + ICH7
Processor: Intel Core 2 Duo 2.4Ghz
Display: WSXGA+(1680x1050) Color Shine 15.4'' LCD
Graphics Card: NVIDIA Mobile PCI Express Module/GeForce 8600M GT 512MB
Memory: 2 SO-DIMM 1GB each
Hard Drive: 2.5" 9.5mm SATA HDD 160GB 5400RPM

My notebook has been working fantastically for a long time, but when I tried to boot it up this morning the screen stayed black as the blue power button and the other buttons came on. All of the LED's work normally and the keyboard lets me use the lock buttons as if the keyboard is still working. I have no updated any drivers and have not updated any programs for at least several weeks. I tried holding Fn and pressing F7 at the same time but the screen stayed black. I opened the case up and reseated the hard drive and memory modules, and even reset the on-board battery to flash the BIOS. I have tried running the notebook without the battery and just on battery. I also did the electrical/Bios reset suggested by the Asus technician. Nothing has worked and the notebook is still having the same behavior. I have never dropped or damaged the notebook, and this has never happened before today. I don't have to do a "hold for 5 seconds" restart to turn the laptop off, but I do have to press the power button a single time. I have also tried hooking up an external monitor to the laptop but it stay... Read more

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Hello everyone I have been having some issues with an hp pavilion f1903 monitor, which I will summarise below: Upon start up / or when bringing the computer out of sleep mode after a long period of time has elapsed, the screen remains blank.Turning the monitor off and on again, and then clicking the mouse will bring up the screen for a fraction of a second before it disappears.After a while of going back and forth like this, the display will re-appear and there are no further problems with the monitor which functions normally, with no flickering. The period of time that it takes for this to happen appears to be increasing.The blue light on the monitor power button no longer functions, although the orange light indicating that it has entered sleep mode does still work.My suspicion, given the monitor's age, is that this is a power supply problem, however I would wlecome anyone else's thoughts.  Whatever the outcome, this has been a very good monitor. Many thanks in advance.

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