Display lights remained black?

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• HP Pavilion dv7-1240us: preheating indicator light, a fan noise is heard, but the screen remains black, laptop will not start.

  Perform a hard reset

  I added an external monitor and restart the computer. All seeing power are on, fan and hard make sounds and still nothing on both screens.

  Reinstall all hardware

  Still nothing but black on both screens.

  Is it possible that a virus could cause black screen and does not start.  Seems the laptop crashes, because all the lights remain.

  Please notify.

  Hi there @SVJ69

  Welcome to the Forums of HP Support! It's a good place to find the help you need, so many other users, the HP experts and other members of the support staff.

  I understand that you get a white screen when you turn on your system. I'm happy to help you with this. I would recommend that you start with searching through this page. Since the construction in and external display do not respond, I would start with the displays.
  Troubleshooting of black screens with no start-up or start-up error message
  Problems related to laptop (Windows 7 and Windows 8) displays

  This can help more evenly. If another hand, you get error messages, or a repetitive pattern of flashing LED, let me know.

  Computer won't start (Windows 7, Vista, XP)

• Screen remains black, while all buttons are light

  original title: serious problem with my computer!

  I'm trying to fix my computer because something is obviously wrong with it and I'm not very good with computers, so I don't really know what I'm doing, and I think I might have messed up even more now.

  Recently, I tried to back up my files on my d drive but he said he couldn't because my c drive was damaged so he told me I could fix it and I tried, but he says he couldn't when it is in use and told me to program it so that he could check it out when I start then my computer. Then I restarted my computer, and every time I restart my computer, it has a problem back on. The screen remains black then that all the keys are lit and then after a minute or two, it hangs, and then she did it again and again until I have press and hold the power button to turn it off. I have to finish by wait 5 minutes before turning on so it lights correctly, otherwise it will just do that again.

  Then he started toward the top of normal, of course I know what the disk check thing looks like now because what happens now, but before it has not then I thought it did not work and as a last resort, I wanted to wipe my hard drive clean because I tried everything I could, and I don't have the money to fix right now and probably won't for a while. So I followed all the instructions for the recovery of the system and none of the other stuff worked and I decided to go with my disk wiping hard completely clean and restore factory settings. I followed all the instructions and then it turns off my computer, trying to wake it up, so his restart of course, but he does what its been recently when it restarts and crashes.

  If I turn it off and wait a few minutes, then turn it on and I was really upset at that time here because I thought that it did not work. Its starts upward and there appears the disk check thing and it says system files verification on c: responding file type is NTFS. __Cannot volume open for access.__windows live has finished check the disc. then goes to the login screen I open a session, but then the screen is black and the only thing I see is my mouse. It was like it maybe 30 minutes or more, and I didn't know what was happening so I turned off and then tried to turn it on and it does the same thing next time. I thought that maybe when he crashed he screwed up the process, or perhaps checking file system on c drive messed up. So when I had the chance, he finally started upward and I connected again but this time on the user prompted and everything was still there but it was EXTREMELY slow, as it took maybe 10 minutes or more to open what anyone and it loaded really slow when I logged in. I finally made the thing about system recovery again after a few hours of waiting so he can keep loading, cause whenever I clicked it, it does not always work. And then it's the same thing all over again. He obviously never erased from my hard drive, so I probably * my computer even more, and then it was already * upward and it was a gift, so I would really like to fix so if someone can help me maybe I would really appreciate it!

  Hi TeresaBilski,

  ·         How have you tried to reinstall the operating system?

  I suggest you erase the hard drive and do a clean reinstall of Vista. I would like to ask if you still have the boot floppies for Windows Vista that came with the computer. If this isn't the case, you will need to get a.

• MacBook Pro 2015 turns on but the screen remains black...

  Hello

  Today, I tried to turn on my MacBook Pro, but my screen stays black. When I press the caps lock button, it turns green which I guess means he lit. I've also heard the startup chime it generally makes when you turn on. I already tried to turn it on and off several times and reset the SMC and the LANDAU... The screen is always black.

  Could someone help me please?

  Also a few minutes ago the fan has started to make noise in the macbook...

  But the screen remains black.

  Thank you

  Shaynidw

  Hi shaynidw,

  From your description, it seems that your MacBook Pro is powered, as soon as you hear the startup chime and see the light on the keyboard.  Thus, it seems that the problem may be with your screen or the video card.

  On the screens you see when you start your Mac

  Power on

  

  When you turn on your Mac, display is off (black) and you hear a startup chime. Your Mac Initializes his BootROM and memory (RAM live). It then performs a power - on that self test (POST) and a test of BootROM. If you hear beeps or chimes at this stage, this indicates a possible hardware problem and start stops. If you add memory to your Mac, check that it is installed correctly.

  White screen

  

  After that only walking self-test is completed, your Mac sends a video signal to your connected screens. The screen may appear black or grey at this point in the boot sequence and backlight of the screen should light up. If you do not see the image appears on your screen after a few moments, try increasing the brightness of your screen. If you use an external monitor, make sure it is properly connected and turned on.

  shaynidw, if set up the brightness of your screen does not help, you have an external display (computer screen or TV) that you can attach to your MacBook Pro to test?

  In addition, you can try to start your computer in safe mode to see if you get different results.

  Try safe mode if your Mac does not end commissioning

  If the problem persists, you may need to take your computer to an Apple Store or service provider authorized Apple , so they can inspect the video card and cables to isolate the problem.

  Take care.

• Toshiba Qosmio DX730 PAQ13A - no signal - the screen remains black

  When I turn on PC (all in a single DX730 PAQ13A-010005) the amber light turns white as it should. However, the screen remains black.
  If I unplug the connection, and then reconnect it, a message appears on the screen indicating 'PC', it then changes briefly to display the message no Signal.

  He will not go to log in screen etc. because the screen stays black.

  All advice appreciated.

  Must be the hardware problem.

  It seems that no signal can be picked up by the monitor...
  Probably the mother or any other element connected to the motherboard is defective...

  I guess its time to contact a technician if you want to solve this...

• Satellite L670 - screen remains black after sleep mode

  I recently bought a L670. When I close the laptop, it goes into sleep mode. No problem with that. But when I opened the laptop again the screen remains black.
  I see on the drive activity light that the laptop come out of sleep mode correctly, but the screen remains black.

  I don't have this problem when the sleep mode is only a few minutes. Then the screen comes up correctly.
  But for example after an hour of sleep mode... no screen.

  I'm doing something wrong?

  Thanks in advance for your feedback.

  Hello

  I recommend the update to the BIOS and the display driver.
  It helped to solve a similar problem on my old laptop.
  Maybe it helps in your case.

  Good luck

• Windows vista screen remain black but the power and the fan runs

  I have a laptop of 5 years that I use for school. Normally, I have my laptop on the way 'sleep' but one day, that the display lights «» I press the power button to restart and it stops, however, when I turn it on, it will only show power and the fan runs. The screen remains black. Can someone help me, I need to access my documents from the school.

  Thank you
  c

  Hello

  Video card problems are the most common cause of this problem.

  Method 1:
  Reinstall your video driver a. right click on the taskbar and then click Start Task Manager.
  b. click on the processes tab, click explorer.exe and then click on end process.
  c. click file and then click New task (run).
  (d) in the text box to open, type explorer.exe, and then click OK.
  e. click the Start button, type device manager in the start search box, and then, in the search results.
  Click on Device Manager.
  f. double click on display adapters, right click the display device, click Update driver software and then follow the steps in the wizard that appears.

  Method 2:

  Start the computer in safe mode and run system restore

  a. click the Start button, click the arrow next to Shut Down and then click on restart.
  b. do one of the following:

  • If your computer has a single operating system installed, press and hold the F8 key as your computer restarts. You need to press F8 before the Windows logo appears. If the Windows logo appears, try again by waiting until the Windows logon prompt appears, and then stop and restart your computer.
  • If your computer has more than one operating system, use the arrow keys to select the operating system you want to start in safe mode, and then press F8.

  c. on the Advanced Boot Options screen, use the arrow keys to select Safe mode, and then press ENTER.
  d. connect to your computer with an account of a user who has administrator rights. When your computer is in safe mode, you will see marked Safe Mode in the corners of your screen.
  e. click the Start button, type "System Restore" in the search box, click System Restore, and then click Next.  If you are prompted for an administrator password or a confirmation, type the password or provide confirmation.
  f. choose a restore point when your PC worked as expected, click Next and then click Finish.
  g. restart your computer normally.

  Keep us updated on the status of the issue.

• 32L3441DG - bright green but the screen remains black

  I turned on my PC and my TV, everything has worked perfectly.

  When I came home from school, my PC was on but I turned off my TV when I went to school. I tried to turn it back on, the light was blinking red and green as usual when you turn it on. When he stopped flashing green, the screen remains black.

  

  Posted by Patrick p
  

  I turned on my PC and my TV, everything has worked perfectly.

  When I came home from school, my PC was on but I turned off my TV when I went to school. I tried to turn it back on, the light was blinking red and green as usual when you turn it on. When he stopped flashing green, the screen remains black.

  Hello, I have the same problem.
  I can hear TV-Programm, but the screen remains black.
  Uwe,

• Satellite A300 - turn is not on, the screen remains black

  I have a laptop Satellite A300. I tried to turn it on when I got home from work and the screen remains blank. The bottom (plug, power and battery lights) turns on but the screen remains black.

  Can someone help me?

  Hello

  It of hard to say what's going wrong here, but maybe it s just a small issue that could be solved easily.
  Try this;
  Remove the battery, disconnect the adapter.
  A few hours and reconnect the two parts.
  I had this problem in the past and leave the laptop disconnected during the night.
  The next day, I connected battery and adapter A\c and the laptop worked again

  Maybe this will help you too

• Satellite a200-1sv screen remains black at startup in Vista

  Hello

  We have a problem with Toshiba Satellite A200-1sv my girlfriend: when we started, most of the time, the screen remains black, while the computer starts: after awhile, we can hear the sound of windows (vista).

  In addition, if connect us another screen of the computer, it displays the scheduled start screen. In order to use the computer, it must launch a few times... The support guy where we bought the computer told us "the computer is not compatible with Vista, we cannot do something".

  Can we do something?

  Thanks in advance,
  Ju

  I have to smile to read this message
  Mainly, this statement is funny;
  > The support guys where we bought the computer told us "the computer is not compatible with Vista, we can't do something."

  I think that this laptop has been delivered with the Vista operating system. So why the guy said that the laptop is not compatible with Vista?  :| …. that's nonsense.

  First the A200-1SV belongs to the PSAE6E series and it s fully Vista capable.
  Secondly, like you say the external screen displays home Toshiba screen and so I guess that's just a matter of adjustment.
  What you can do is to use the FN + F5 key combination to switch between display devices.

  If it doesn't help to try to put the laptop back to the factory settings using the Toshiba Recovery CD!
  In this case, the new OS, driver and tools will be installed and then everything should work fine.

  Good bye

• When I start my Equium P200D screen remains black

  Hello

  I have a portable Satellite P200D-139 (WinVista). I left on during a few hours after work a day to to this subject when I came back the screen was black, but there is no way get back on. I have turned it off manually (I know we're not really supposed to do, but I had no choice) and tried to turn it back on to the it, but there is nothing happening.

  I can hear it start about 2-5 seconds, then it's as if he won. I can still hear a slight noise hum (fan), but it is not from, and the screen remains black. Nothing lights up.
  I tried to cool, I tried to remove the battery, nothing works.
  I tried using F8 to repair, but is not answer either.
  I don't want to reformat it completely right now that I have docs and photos which I did not have time to put on the disk.

  Anyone would be able to help me with this? That's my working tool, so I'm kinda stuck with this problem.
  A big thank you to all those who can help.

  Kind regards
  Stéphane

  Hi Stephanew,
  as I recall it has an ati graphics card...

  but try this to get your machine to work:

  -pull out the hard drive to protect your data (Let's hope that there is no damage yet...)
  -take out the battery and try to start only with the power adapter > shoukld you see the toshiba on-screen logo > failure other components can be 'guilty '...

  -attach an external monitor to your computer and check if there is a visible image > no image at all?
  -check the memory, for this purpose, remove the memory and test if the satellite "buddies" > heard some of this? Yes?

  iasume the grafics card disappeared... see your certified partner...
  Let us know if this helped you.

• Satellite P200D-139 - screen remains black

  Hello, Ive had my laptop for a few years and after leaving in my freezer for a few weeks on vacation, I went to turn it on and the laptop turned on and the lights came, but the screen remained black. The screen was not completely black she lights up very slightly, but nothing was visible at all (not even very thirsty)

  In the past, I encountered a situation where I had a red tinge to objects on my screen, but also red horizontal lines. This was never permanent and only occasionally happened.

  About my most recent problem involving the black screen, I tried taking the battery and holding the switch thing on, but also to take my ram out and put it back again. After that I took the ram out, I turned on the laptop and the screen shows red objects and flashes the screen loading and then black again. I don't know if it was because of the ram or just a coincidence.

  I'm completely stuck on the current situation and would be grateful for all the help I can get. Thank you!

  Hello

  If everything is clear: in your case I would like to connect an external monitor to the laptop. So that you can identify if the problem is related to the screen internal or graphics card.

  In both cases you need professional help, I think the something on the hardware needs to be replaced. Therefore, you must contact an authorized service provider. Technicians can check your laptop and fix it for you it's a little tricky.

  On the Toshiba page, you will find a list of ASP.

  Welcome them

• Satellite A200 screen remains black when you try to start

  Hi all

  My Toshiba Satellite A200 laptop computer no longer works, then everything started when I was playing a game, all of a sudden the screen turned blue with a tiny text written on it. I had to hold the power button for a few seconds to close, because nothing not happening on the computer. Then, I pressed the power button to open it. Everything was fine, until the Welcome screen. In this part, he wrote 'Welcome' but Vista left loading circle of it was not turning.

  After a few seconds, I decided to shut down the computer once again, so I hold the power button for the computer firm. Here's the problem: I tried to re-open it, but the screen remained black. Nothing was happening. The power light is blue, but not all computer activity. So I left it like that a few minutes then it closed and tried again, but it's the same thing. I tried to take it apart and noticed the card two memory was not entirely in its niche. I fixed it, but it does not solve the problem.

  I also tried to plug another screen on it, but this one was also black. So I handed the screen on his computer and tried to boot my laptop and it worked. He was the starter, but the first problem came, the Welcome screen was frooze it. So yes I close it up and then it's the same thing, the screen remained black.

  I don't think the problem is the screen, because as I said some time it goes to the Welcome screen. Also, I hear no welcome sound when the screen remains black as if the computer would simply not starts. And as I said earlier, I see no activity of the computer on the little light in front of the computer. And to the left of it, I see clearly that the computer is ON, because the power light is blue.

  That is my problem, the next time that the computer is able to start I'll try to boot mode SAFE, but until then, I don't know what to do. Please, help me.

  Thanks in advance,
  MrRoy

  EDIT:
  After the computer is turned off for about 30 minutes, I started and booted in safe mode. At this stage, I have locked my computer with the close button instead on the power button. Then I opened my computer and he started and the problem was solved. Now my laptop is open and working.

  So, if this happens to you:
  1. turn off your computer.
  2. wait about 30 minutes.
  3. start in safe mode
  4. close using istead of now off button power button closure.

  It should work.

  Finally, it does not work. I don't know why, but my computer did start after 30 minutes, but now it no longer works. Only, it will not start as I said later, with a black screen.

  The computer worked for about half an hour. I mean, I managed to start but after running a program, it just froze and I had to hold the power button to restart. I made about 3 or 4 times, and then he was simply the black screen again. I think the problem is my processor, maybe that it is damaged or something, would it possible?

  Because I see that the processor does not work when I try start it.

  So let's say that this is the case, would it be the symptoms of my computer?
  And if it's the processor, the only way to resolve this is to send it to a repairman or something, because I don't feel like it, I'd rather do it myself.

  But now, my computer is simply not starting, as I said in my previous post.

  Thanks in advance,
  MrRoy

  -----

  Note: The Edit button was not there so I had to double post :/

• BIOS update failed, now Satellite L500D remains black

  Hello

  I wanted to just install the new update of Bios for my Toshba L500D, Vista 32-bit. When installing the pc freezes. I kept it, but 2 hours late, it was still frozen. It does not respond to any command, so I unplugged the power supply and let the battery run empty.

  Now, I tried to restart but the notebook remains black, the fan turns and the little light that means it works on. but nothing more happens.

  How can I make it work again.

  Thanks for help

  Hello

  You need to reflash the Bios, contact the Asp (SAV) in your country, they will do it for you.

• Failed to start the laptop - screen remains black

  My laptop does not start. Power led and load are also on, HDD LED, but has black screen.
  If I hit F12 when starting with my recovery disk in, I can hear the CD being run/search but screen remains black.
  Seems to me that the (bios) boot is corrupted. Anyone can advice?

  Hello

  As far as I know that these issues are resolved for the most part in combination with the BIOS and update the display driver.
  Maybe you should try to update both of them.