It was fine the night before. I turned on the laptop and it would show it starting up. then the screen goes completely black, I can tell the just the screen turns off but the hard drive is still spinning
Ok, so I have a Dell Inspiron 2650 with the same problem. Screen randomly turns off (or rather the backlight of the screen turns off, and if you look closely enough the screen itself is still on). Using the function key mentioned above, or closing/opening the lid brings the screen back for a while, but the problem repeats randomly every few seconds.
Now, this just started happening a couple of hours ago, and after stripping my computer, found that there is a fan at the back of the machine (roughly in the middle) that blows directly onto the graphics card heat-sink. This fan seems to not be working at all.
I have currently got a normal upright fan blowing directly onto the back of my computer, and this seems to reduce how often the screen turns off substantially.
Try to attach laptop to an external monitor and use the FN/ F keys toggle back and forth to the external display. If the external monitor displays ok then the problem is the LCD display screen on your laptop. They can be replaced fairly easy if you are handy if not have a Tech replace it.
However if the external monitor is also not displaying any video it is most likely your motherboard or video card which is probably built into the MB. I have not taken apart HP's yet only Dells & IBMS.
If you have an HP, you probably have a bad display. They are very bad about that very thing. Where the display hinges are, press on the left hinge just above the keyboard. I have a similar HP and mine has the same problem. I was told a shop that it is the inverter for the display. You might see if there is a shop that can look at it for a small fee.
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I find sleep mode nothing but trouble, eventually corrupts window files over extended use, go into power options, go to stand by and select never and click apply, next go to hibernate "top right" and click, make sure the check box is clear, if not! remove check and click apply and restart your laptop.
When you turn on the laptop and get a black screen, does it sound like the computer is still running(are any lights lit up etc) ? If so, then you possibly have a bad video display. I would highly recommend visiting a repair shop or contacting the manufacturer of our laptop for service repairs.
If the laptop is plugged up to any other display, or TV , unplug it and reboot.
If it does not sound/look like your laptop is actually turning on then you may have a power issue. You can try some of the following tips to see if it resolves your issue. -Leave the laptop charging for 10 minutes then try and turn it on. It may not be charged up enough. -Try a new power cable -Try a new battery -Try a different wall to charge the laptop.
1 Disconnect the battery and the charger 2 Let it sit for 1-2 minutes. 3 Press and hold down the power button for 30 seconds. 4 Reconnect battery and charger and try to start by pressing the power button.
If it remains same, restart and tap F8.
If you get an menu, select safe mode and press Enter
Since you have power on your laptop. I have this questions you need to answer: 1. have you seen Dell logo after turning on the computer? 2. After turning on the computer heard beeps? If all no do this
1. Turn off laptop remove batt and use ac adapter 2. While laptop is off press Fn key + Power button to run test check if you see display test in progress. If no, wait for 5 minutes to listen to beep codes. Once heard beeps keep pressing hold on N key. If fails turn off laptop
3. While laptop is off, press hold D key + power button. Check if you will see colors display whole screen. If no this will need to replace LCD call Dell. If see colors whole screen replace motherboard call dell.
The backlight is the light bult that illuminates the screen. Before it finally goes out completely it will turn your screen a pink color on startup (and then usually become brighter and the pink fades). It is also possible that the backlight, also called a Cold Cathode Flourescent Light, CCFL, died an immediate death. But usually they take a while and signal with the "PINKNESS" first. If you found that your computer is working just fine connected to an external monitor (and you moved the base of your laptop around while connected to the monitor to be sure and left the computer on for a long time) then you have verified that the screen is the problem. It is usually two things: (1) the inverter, a circuit board that increases the voltage to supply the LCD which eats around 700 volts (yeah baby); or (2) the backlight itself. The first problem is a relatively easy and inexpensive fix. You can find how to replace an inverter by downloading the Hardware Maintenance Manual for the T40, T41, etc., from IBM/Lenovo's site. Replacing the backlight itself, a bulb that is like a strand of speghetti and even more delicate, is a tougher job. I would suggest purchasing a replacement screen in that event rather than replacing the backlight yourself. (The HMM probably does not show you how to replace the backlight/CCFL as it is a potentially dangerous job.) That suggestion assumes you can find a cost-effective replacement screen and do not mind opening the TP and putting the new screen in. At least look at the HMM to see what is involved. Good luck.