Black monitor after PC turn-on

Hi!
HP Pavilion a6600f
Windows 7 64-bit
Black monitor screen after system turns on
"I've tried numerous troubleshooting procedures to see if the computer really works like connecting the tower to another monitors, tried a dvi cable that I have as well. I've open the tower and unplugged each cable attached to the motherboard plus the two memory dimms. After that, I dusted off most of the dust bunnies from inside the tower including the fan attached to the motherboard. I used an air spray can.
After all that was done, plugged all the cables and memory dimms back in place. I connected the tower to my monitor and still have a black screen.
What should I do?
V/r,
Potros35

You'd need to purchase a PCI-E video card. Here are a few examples. Also, this video shows you how you go about replacing the graphics card in the computer tower.
Let me know if this helps or if you have any questions!
Please click the white star under my name to give me Kudos as a way to say "Thanks!"
Click the "Accept as Solution" button if I resolve your issue.

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I don't know if it's something to worry about per se, but it might be a sign your computer isn't happy. If it's been a while, I would:
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Reset the Ram/Pram:: Resetting PRAM and NVRAM
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
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Try these and post back, I'll do more research and figure this out, promise.\
Ray

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Macbook Pro suddenly shuts off. screen goes black and won't turn off till after a few hours.

Hi everyone!
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Hold the power button down for 10+ seconds. Then bring the MBP to an Apple store for an evaluation.
Ciao.

Monitor won't turn on after "sleep"

Hi,
I have an Apple Studio Display 17" hooked up to a New Mac Pro, running 10.4 Tiger. When the computer goes to sleep the monitor won't come back on when I wake it unless I shut the monitor off and turn it back on again. Why?
Dan

What did ssh probing tell you.
Try using PC blindly. For example, leave music player on screen, wait for the fault to appear and than start it. If you hear the sound, then it is either:
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Black Screen After Fans Run at Maximum

Hello,
I inherited an iMac and it an issue. It boots up fine but within the first five minutes the fans start to slowly ramp up to full speed. After about five to ten minutes of the fans running at full speed the screen goes black and I lose control of the computer. I cannot see anything on the screen, not even the cursor moving. I am also not able to shut down the computer using keyboard shortcuts. I have to hold down the power button.
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Airport Card: 141
Ambient Air: 76
CPU Heatsink: 93
GPU Die: 262
GPU Heatsink: 254
GPU Proximity: 223
Hard Drive Body: 102
LCD Proximity 94
Misc: 103
Optical Drive: 99
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The computer is an iMac model EMC2134
OS X 10.8.5
24" Core 2 Duo with ATI Radeon HD2600 256 MB video card
I also ran EtreCheck and the output is below.
I would like to repair the computer even though it is old. I however do not want to bring it in to a repair shop. What do you think is the issue and what leads you to that conclusion?
Thank you,
jbr
EtreCheck version: 2.1.8 (121)
Report generated February 24, 2015 7:56:31 PM CST
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information:
    iMac (24-inch Mid 2007) (Verified)
    iMac - model: iMac7,1
    1 2.4 GHz Intel Core 2 Duo CPU: 2-core
    4 GB RAM
        BANK 0/DIMM0
            2 GB DDR2 SDRAM 667 MHz ok
        BANK 1/DIMM1
            2 GB DDR2 SDRAM 667 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
Video Information:
    ATI,RadeonHD2600 - VRAM: 256 MB
        iMac 1920 x 1200
System Software:
    OS X 10.8.5 (12F45) - Time since boot: 0:4:59
Disk Information:
    WDC WD5000AAKS-00V1A0 disk0 : (500.11 GB)
        disk0s1 (disk0s1) <not mounted> : 210 MB
        Big iMac (disk0s2) / : 499.25 GB (337.62 GB free)
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
USB Information:
    Apple Inc. Built-in iSight
    Alps Electric Hub in Apple USB Keyboard
        Logitech USB Optical Mouse
        Alps Electric Apple USB Keyboard
             Patriot Memory 7.92 GB
        PATRIOT (disk1s1) /Volumes/PATRIOT : 7.92 GB (7.62 GB free)
    Apple Inc. Bluetooth USB Host Controller
    Apple Computer, Inc. IR Receiver
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        /Library/Application Support/Kaspersky Lab/KAV/Bases
    [loaded]    com.kaspersky.kext.kimul.44 (44) [Click for support]
        /System/Library/Extensions
    [loaded]    com.kaspersky.kext.klif (3.0.2d239) [Click for support]
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    Panasonic_MFS_PushServer: Path: /Library/StartupItems/Panasonic_MFS_PushServer
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    [not loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [loaded]    com.adobe.CS5ServiceManager.plist [Click for support]
    [loaded]    com.hp.help.tocgenerator.plist [Click for support]
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    [loaded]    com.adobe.SwitchBoard.plist [Click for support]
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Internet Plug-ins:
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        Total number of backups: 26
        Oldest backup: 2013-04-09 03:34:37 +0000
        Last backup: 2013-06-25 21:20:55 +0000
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Top Processes by CPU:
         5%    mds
         4%    WindowServer
         3%    mdworker
         2%    Memeod
         1%    kav
Top Processes by Memory:
    283 MB    kav
    215 MB    firefox
    47 MB    mds
    47 MB    Dock
    43 MB    WindowServer
Virtual Memory Information:
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    1.27 GB    Active RAM
    268 MB    Inactive RAM
    518 MB    Wired RAM
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As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosened. Reinstall the RAM grille. Plug in the keyboard and mouse if not bluetooth. Insert power cord...
You are now in a perfect position to do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
It is the 5 second timing that initiates the reset.
Here is a link to a Widget to monitor your temps and other operations:
http://islayer.com/apps/istatpro/

GTX670 - Signal lost/black screen after windows loading icon

Hello,
I hope I am posting this in the correct forum area. If not I do apologize.
Here are my specs:
Board: MSI Z97-G45 Gaming
Bios: ?? whatever pre-installed on mobo
VGA: MSI GTX670 OC
PSU: Corsair HX750 750W
Intel Core i7-4790K
MEM: 12 GB Kingston HyperX DDR3 1600 2x 4GB, 2x 2GB sticks
HDD: SSD Kingston 120 GB (Win7), HDD 1 TB WD 7200 RPM (Win7), HDD 1.5 TB WD 7200 RPM (storage)
COOLER: Corsair Hydro Series H60 Water Cooler
OC: no overclocking done by me..default settings
OS: Windows 7 64bit Professional
So to keep this as direct and as short as humanly possible here is my situation.
Had a gtx670 card that I had to send back to MSI under RMA. They sent me what looks like a new gtx670 card (no dust) that I received yesterday (4 Aug). Last night I removed temporary old card (9800gt) and plugged in new 670gtx. Things seemed to be ok, reinstalled driver after card was recognized. Played one round of Battlefield 4 for testing purposes and all seemed good.
Upon exiting the game things went south in a hurry. Moving the mouse cursor around was extremely slow and choppy. Mouse clicks were not recognized. I could not bring up ctrl-alt-del to get to task manager. At this point the cursor turned to spinning circle as if things were happening. However, after 5+ minutes of nothing changing I did a hard boot.
Restarted and after the windows loading screen the signal appeared to be lost to the monitor and I was left with black screen. This was with the SSD. I then attempted to load into the HDD windows OS that I hadn't logged into yet with this card and was greeted with the same issue.
I can load into Safe Mode with no issues. In safe mode I removed all nvidia drivers and was then able to load into windows normally using basic windows vga drivers. The moment I load the Nvidia drivers and restart the computer I then have the issue again. This happens with both drives.
I have reset the video card in the PCI-Ex16 slot and still received the problem. I have tried a different PCI-Ex16 slot and still had the issue. I put the old 9800gt card back in and windows loaded perfectly and without issues on both drives. I put the 670gt in and try to load into normal windows and I lose signal and get black screen after the windows loading screen.
I'm at a loss at the moment. I think it's the drivers, but could it be the card?
Doing some research I've come across some people saying there may be issues with the nvidia HD audio drivers that are installed with the video drivers. Could it be as simple as uninstalling or unchecking that particular driver?

Flashed the BIOS last night to the latest version and attempted to launch windows with the GTX670 card. I still experienced the same issue where as soon as windows finishes it's loading animation (with Nvidia drivers) and it goes to the login screen, the monitors cut out.
At this point I feel like it has to be the card. The moment I install the video drivers and restart, I have the problem of losing the signal/black screen.
What I have done:
1) Completely wiped any/all video related drivers from the computer and started from scratch. No success.
2) Ran Memtestx86 to see if it's a problem with my memory sticks. No problems found.
3) Put the card in a different PCI-Ex16 slot to see if there was a problem with the slot. No success.
4) Flash updated the BIOS on the motherboard to the latest version. No success.
I have a dual boot computer with Windows 7 64-bit installed on an SSD and a HDD. The problem happens on both drives. Yet, the moment I install my old 9800GT the problem disappears and I can login to Windows just fine.
I will be sending the card back today on another RMA.

Black screen when I turn on Satellite M

When i turn on the notebook, i cant get into the system, just black screen, after i tried several times, then i can get into the windows system.
What is the problem???
Tanks ,buddy

Hi
Are you able to access the BIOS?
If not then there could be a motherboard problem
Did you try to connect the Satellite notebook to the external monitor to check if something would be visible on second screen?
I think this would be helpful to get more information about possible hardware issue
If an second display would stay black too, then an graphic card issue might be possible
However, I doubt you could fix it yourself. In most cases its a job for an technician

Black screen after windows auto update

New laptop in use for 3 weeks. After Windows auto update restart I get to splash screen and am able to enter Windows password to log onto desktop. After successfully entering password I am not able to view my desktop; I get the black screen with cursor function; cursor disappears when moved within an inch of left or right of screen (seems to go behind something). I believe I am at the desktop but just not able to view it, because I receive app popups on the black screen (need to update McAfee, etc).
In safe mode I restored to pre auto update date; manually installed all Windows updates; worked fine until NEXT auto update, same problem.
Graphics Card: Stock Intel HD Graphics
Monitor: Generic PnP
Why would it be fine with the manual update and not after auto update?
I do not have an external monitor to attach this laptop for diagnosis. I have run windows partition checks and hard drive partition checks with no issues to resolve.
I did get an error message once when running a diagnosis (can't remember which) : Windows Update Error 0x80070490
No real luck finding anyway for me (the average Joe) to resolve this issue.
If this is a harddrive issue I don't want to keep pussyfooting around while my warranty window shrinks.
I have downloaded driver updates from HP, but cannot get the Synaptics Touchpad driver to download. I don't think this is my issue though.
I am going to manually update all my drivers then manually update Windows. We will see what happens on the next auto update.
Please advise if this is an issue I need to just give up on and return this laptop for replacement. It seems like this is not a completely unheard of issue, but I'm shocked at what we are asked to do to attempt to resolve it. Out of my depth.

Hi @Justanothermom
Welcome to the HP Support Forums!
I understand that you are having troubles with a black screen after an update. I am happy to help you with this.
Firstly, there is nothing wrong with modifiying your update settings. I was going to suggest it myself as I read through your post, and then saw you ask the question. Sometimes updates can have unintended results by the creator. With all the different combinations of hardware, and the fact that updates come from different sources, it is one of those things that is hard to completely control.
Please see the following for how to make adjustments to your update settings.
Turn automatic updating on or off - windows.microsoft.com
Or if you know which update seems to be causing the issue you can take a look at this page:
win 8.1 August 12 updates - black screen after 2nd reboot - answers.microsoft.com
Let me know if this helps at all.
Malygris1
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!

Computer wakes from sleep but screen remains black even after restart

So, I installed SL yesterday and everything seemed fine. Last night, I closed my computer's monitor (putting it to sleep) for the night. This morning, when I opened it, the screen was black. I could not see anything, so I just restarted the computer.
On restart, the screen remained black.
After some experimentation, I realized that the computer was actually running, but I just couldn't see anything. So, I typed my password - screen was still black.
I then pressed the power button and enter - shutting down the computer properly.
After it shut down, I turned it on and the screen came on as normal...
What's going on here?
I checked some other threads and there was some potential issue with the iphoto screensaver, but I am not sure if that is the case here or not.
Any thoughts on how to fix this or prevent it form happening in the future?

I just had a similar thing occur. After resetting the pram the screen came back on.
I had noticed some problems with the hot corners for sleep mode earlier so I have deactivated them now to see if this was the problem. The only other thing I can think of is the recent Java update. I installed it right before the problem occurred.
Kurt

Lenovo G560 - Issue with won't boot and black screen after HDD upgrade

Lenovo G560 - Issue with won't boot and black screen after HDD upgrade.
What happen: My laptop was working fine, no blue screen issue, no funny business at all. I bought a new SSD Intel 120 GB and thought it would be a good idea to replace the HDD. I shutdown and disconnected the power adapter, waited a couple of minutes and removed the battery. I opened up the back case and replaced the HDD. And put all the screws back and put the battery back in.
Problem: The very first time I turned the power on, nothing happens besides a black screen. I pressed the dvd drive it works and opens up and closes. I waited for about 30 mins and still has blac screen. When I mean black screen, no bios menu, no logo, just a black screen with the fan sound on.
I have tried these:
1. Unplugged everything - battery, adapter, and pressed the power on button for about 60 seconds, nothing, the laptop turns on with the LED display on for both on and battery LED's. But nothing but black screen, no sound of windows loading just the fan and black screen.
2. I tried putting back my old 2.5" and nothing but black screen.
Thoughts and suggestions?
Solved!
Go to Solution.

Hi Autoexit173,
Welcome to Lenovo Community!
As per the query we understood that you are facing issue with system not booting in your Lenovo G560 laptop.
As you have mentioned that the system not booting, please try to remove the RAM and turn on the system and check if you can hear any beep sound. Also try to clean the RAM slots and check for the issue.
Click here for the steps to remove the RAM and refer page number 40.
Hope this helps. Do post back if issue persists!
Best regards,
Ashwin.S
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[SOLVED] Black screen after boot

Hello,
I've been running Arch for a while now successfully, and decided to give Windows 10 a go, so I installed it on the side. Naturally, Windows overwrote the Grub2 bootloader, but I knew that was going to happen.
So after playing with Windows 10 for a while, I decided to go back to Arch. I put in the Arch Live CD, chrooted into my Arch installation, and ran the grub-install commands
# grub-install --target=i386-pc --recheck=/dev/sdc
# grub-mkconfig -o /boot/grub/grub.cfg
Grub reported no errors, other than something "invading" block 32. But nevertheless reported "success".
I reboot, and sure enough Grub is there, but when I try to load Arch, the first time I got a message that it was re-checking the /dev/sdc3 (which is where Arch is installed, /dev/sdc2 is where Windows is) because it's mount time is "in the future". That check ran for about 10 seconds, then proceeded with "normal" boot. The problem is... I see the message "/dev/sdc3 is clean" after which the SDDM (former KDM, the display manager) should load.
But all I see is black screen (not screen turned off, just black). I tried going to tty's (Alt+F1 to F5), but couldn't. I erased the Xorg.0.log (through another chroot) and rebooted with the same problem, then accessed the log later only to find them empty. I tried disabling SDDM and enabling GDM which I had installed, same problem.
What could it be? I don't even know where to look, as I don't really see any error messages anywhere.
Thanks!
Last edited by Deusdies (2014-11-08 04:54:46)

Once again duck programming, err, problem solving to the rescue.
I chrooted again and removed the nvidia drivers and disabled sddm. Installed xf86-video-noevau drivers and rebooted. This time I was greeted with tty1. Success!
Did some more fiddling, but I think it was the SDDM that was the culprit. I uninstalled it, and installed LightDM (with kde-greeter). Enabled the lightdm using systemctl, also removed the noevau with nvidia (back to proprietary), rebooted, and voila, it works! I am greeted with the login screen.

[SOLVED] Black screen after GRUB

Hello everyone
I was setting up a machine with E17 and was trying various DM's since none seemed to work. After attempting to use LightDM, I get a black screen after GRUB. I was trying to read the various logs at /var/log/ but I cannot understand them properly. I tried reinstalling entrance and LightDM with no luck. I even tried editing grub's entry appending '1' or 's' and still no dice. Any help would be appreciated.
Last edited by Linoman (2014-01-20 09:22:33)

Hi tnx for both answers.
I missed something important in Xorg.log. As you can see, fbdev and modesetting aren't loading as usual. I didn't check grub stuff, I don't think it's related, since loading in level 3 (text mode) I get a black screen but I can login as root and turn off the computer blindlessly.
[ 2.969] (II) LoadModule: "modesetting"
[ 2.969] (WW) Warning, couldn't open module modesetting
[ 2.969] (II) UnloadModule: "modesetting"
[ 2.969] (II) Unloading modesetting
[ 2.970] (EE) Failed to load module "modesetting" (module does not exist, 0)
[ 2.970] (II) LoadModule: "fbdev"
[ 2.970] (WW) Warning, couldn't open module fbdev
[ 2.970] (II) UnloadModule: "fbdev"
[ 2.970] (II) Unloading fbdev
[ 2.970] (EE) Failed to load module "fbdev" (module does not exist, 0)
[ 2.970] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
GM45, 4 Series, G45/G43, Q45/Q43, G41, B43, HD Graphics,
HD Graphics 2000, HD Graphics 3000, HD Graphics 2500,
HD Graphics 4000, HD Graphics P4000, HD Graphics 4600,
HD Graphics 5000, HD Graphics P4600/P4700, Iris(TM) Graphics 5100,
HD Graphics 4400, HD Graphics 4200, Iris(TM) Pro Graphics 5200
[ 2.970] (II) VESA: driver for VESA chipsets: vesa
[ 2.970] (++) using VT number 7
[ 2.974] (WW) Falling back to old probe method for vesa
javex wrote:Post the content of the following files:
Also does disabling LightDM again help resolve the issue, i.e. can you get it to work without LightDM?
No, I can't get it to work changing DM's. I'm not sure if I pacman -Syu before changing DM's another time. Maybe it wasn't LightDM's fault afterall.
Spider.007 wrote:Additionally; try booting without the 'quiet' entry that is in the kernel line by default; and disable https://wiki.archlinux.org/index.php/Ke … de_Setting too
Thanks for pointing out that. I didn't knew I had it on.
Last edited by Linoman (2014-01-11 21:34:08)

Black monitor after PC turn-on

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