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8

Try using xset dpms force off to force the screen to turn off.


4

I've encountered the same issue. For me, TimeSnapper turned out to be the culprit: if I remember to disable TimeSnapper before locking the desktop I never have a problem.


4

It certainly does seem like the motherboard is having difficulty, but don’t chuck it out just yet. (My motherboard is working just fine because I have a hunk of wood jammed in behind it to address the broken lead in one of the internal layers, I am using my mouse/keyboard in USB mode because the PS2 connectors have cold-joints, and I have a piece of plastic ...


4

I made a file called /home/me/bin/blank and made it executable chmod +x blank with the following in it: #!/bin/bash sleep 1; xset dpms force off Then I set a shortcut in Gnome3 application "keyboard" (gnome-control-center keyboard) to run that script when I push CTRL+ALT+Q. Man I love linux.


4

If you have the same problem with the on-board graphics then that points to the video cable/monitor. Check your display resolution is not set too high Check the video connection into the monitor Try a different video cable If all that fails, then try a different monitor


4

Your motherboard is now dead and needs to be replaced. There is a bug with Samsung UEFI (similar to BIOS) that means that Linux can completely brick the mobo. http://www.anandtech.com/show/6734/samsung-laptop-uefi-bugs-not-just-for-linux How to destroy a brand-new Samsung laptop: Boot Linux on it - The Register I really wish the news were better but I ...


3

This is a common issue both with Windows and Linux. As you have surmised, it is generally related to the graphics hardware. As you have also worked out, Windows is working fine, you just can't see anything. Did the computer try to go into standby? It is very common for graphics cards to fail to reinitialise themselves correctly when returning from standby ...


3

This just happened to me. Any chance you installed a Windows update that included an optional installation for a driver for your video card? My monitor would go into sleep mode as soon as I started it. If I started it in safe mode it worked fine. Then I remembered the Windows update. I did a system restore to a time before the driver installation and no ...


3

Easy to fix problem. Shut the system down. Open your case and remove one stick of ram. Don't put it back in yet! Restart and your system will wake up because it is forced to recognize the change in ram.


3

Having had this happen to me recently - if the fans turn but there's no beeps even when you remove all the memory modules then it's the motherboard that dead. The fact that the on-board video doesn't work would lend more support to this theory too.


3

"Your motherboard is now dead and needs to be replaced" That's not entirely true. Although it's a pain to actually split the case on the Chronos 7, it can be done. From there the battery CAN be disconnected from the motherboard for a couple of minutes which will actually clear BIOS to default. I know, I've done it. Hope this helps.


3

Almost inevitably this will be due to failing capacitors in the power supply section of your monitor. These can 'dry out' (the commonly used term) and become less effective, with the usual symptoms being some mix of: a failure to power on cycling power on and off taking a longer time to power up This is a common problem with electronics, particularly ...


2

Dude, is it possible that your motherboard is grounding to the case? Did you install those little standoff studs? http://www.amazon.com/Motherboard-Screwnut-Standoff-50-PCS/dp/B00008VF6K Yknow, those things?


2

Have you checked the obvious: All cards properly seated? All power leads connected - including the one to the graphics card? All data leads properly connected? Video cable properly connected to graphics card? Check all outputs (if more than one) Monitor turned on? :) Other than that, take the graphics card out and check you get an output from the ...


2

We had a similar issue with our T410's. On our problem, things would appear again, but it could be 20 minutes later. We found that if you install the Lenovo Power Manager (and its driver) it seems to go away. also, you might want to try booting with the embedded Intel card as the video device, (set it in the BIOS) just to double check its not a hardware ...


2

Long list of issues could potentially be wrong. A bad video card maybe... but you would still hear the first "beep" indicating that the BIOS has performed it's POST and everything seems ok. You would also hear the hard-drive ticking as it's booting... and possibly the startup sounds of Windows (assuming you're running Windows or whatever startup sounds) ...


2

Same thing happened to me, but I was not even able to access the BIOS. I tried to replug everything without any luck. What finally helped was changing the computer's power supply cable.


2

Typically this problem is cause by out-dated video drivers. Ensure that you have the latest video drivers. Get the latest drivers from your Graphics Vendor, or Uninstall the current driver and Scan for Hardware Changes in Device Manager.


1

This turned out to be caused by improperly installed video drivers. Avast free antivirus had to be disabled. Nvidia drivers were reinstalled in Safe Mode, and the problems went away.


1

Did you plug your monitor in to the correct port? When you have a graphics card, you have to (usually) use the monitor ports on that. If you are still not seeing anything, or this s what you have done, try using the ports on the motherboard and see if there are any settings in the BIOS you need to change. Lastly, if you are doing it correctly, but before ...


1

When you see the initial POST on the screen when you first power up you should see something about "Boot Device" or "Boot Order", etc... This will let you select the device you want to boot off of (CD/DVD) without having to change anything in the BIOS settings.


1

slock locks the screen gracefully.


1

I would try this, which is similar to what MS recommended in the link but goes a little farther (and takes a bit longer): go into msconfig (windows key + r then type msconfig) go into both startup and services and uncheck everything not made by microsoft. reboot If it loads like normal, start adding stuff back in. If it fails to load after enabling a ...


1

This is a hardware failure. Diagnosing these kinds of failures remotely is nigh-on impossible. Unfortunately, repairs to laptops, especially older ones made by people like Dell, are often very expensive and sometimes not possible unless you are the manufacturer. As you can get some very reasonable laptops these days for good prices I'd live with it a ...


1

Can you boot from CD using a Windows cd? I suggest (and there might be a simpler solution) using another pc to download the latest gfx drivers for your gfx card and copy them to a flash drive. I know the following works in XP, I can't remember if Vista had the option though I dont see why not.... When installing XP there's an option to hit 'F6' i think to ...


1

http://blog.komeil.com/2008/06/fixing-edid-dvi-monitors-no-signal.html Adding an EDID_OVERRIDE registry entry for the monitor will most likely help. Too much trouble for one day though. I'll try this another time.


1

Hello I had this problem already multiple times with my 2x Vostro1000. Just open the panel which contains the powerbutton (and some light indicators). Under that you will find the backlight inverter to your display. press the 2cm long connector back into its connector-slot (around the location just above the 'printscreen button'. It seems that the design ...


1

Do you have an external monitor you can plug into? that would point to a display/video issue Does it beep? If so, what's the beep pattern? Are any lights coming on? Was it doing anything unusual before this started?


1

I think that might be your clue @Antrikshy: Antriksh-PC kernel: [ 1.120446] ACPI: Battery Slot [BAT0] (battery present) My hunch is that you're seeing a problem because your battery is being improperly detected with ACPI: ACPI Battery problems in Ubuntu I've found a few pages which might help simply by google searching "Kernel oops acpi battery". ...


1

If you do find a break in a cable and it's actual wires instead of a ribbon, find some equivalent wire and splice it in. You can splice the ribbon cable too, but it is a royal pain in a butt. I have done it and it works. A magnifying glass and a lot of patience required though.



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