DO NOT use a vacuum cleaner. See what the temperature is when the screen goes dark. It's strange because I noticed when my laptop starts up the fan is quiet as a new laptop should sound but progressively the fan sounds a tad louder as i'm browsing with multiple tabs or using different programs (at the same time) then ultimately my screen shuts off. Yeah, I did see a lot of dust come out after I blew it out and after I cleaned it out I got this warning on my screen "Warning: A problem with the cooling system has been detected. Get you see a lot of dust come out when you blew it out? I have a Toshiba Satellite L675D-S7052 and as I turn my laptop on it works fine for about 5-10 minutes however after that time frame my screen goes black. That is about 10 degrees F. hotter than the room temperature. In that case I wouldn't know what to change. Try blowing out the vents with canned air. Some laptops have two modes. Either your fan is bound up by dust bunnies or you dislodged the heat sink. Once you're sure it's getting power, check the cable connecting the monitor to the computer. Then there is probably nothing wrong with your graphics. I've tried that already and when it's connected to an external monitor it works as long as the laptop monitor works but when my laptop monitor goes blank. Your Mac laptop display should immediately turn off. Check your power saving options in Control Panel> Power options. Laptop Screen shuts off but computer is still running, Alienware M15x laptop screen shuts off but computer still on, [Solved] Laptop Screen shuts off but computer is still running. After I opened my computer and cleaned it all up, the screen is on longer than what it has been since this problem began. If … One for battery and one for AC power. I noticed that after I blew out some of the dust from the laptop there were a couple balls of dust in the fan area. Computing.Net and Compnet Ventures, LLC hereby disclaim all responsibility Write down that message and tell it to the tech. The screen might remain black when there is a … Make sure you have solid connections on both ends. If you want, you could try blowing out some more. And laptop temperatures dropped considerably. With any of these tricks you can easily turn off your laptop display without having to shut it down or put it to sleep. If the monitor is still going black, you may have the power settings set to turn off the display after a set time span. I'm still having the same problem. What is happening is normal, but is changable in the above settings. I opened up my computer and did find that there was a bunch of dust around the fan so I cleaned up all that build-up. Your temperatures are kind of high. So does my external monitor. I suggest you read your manual to determine what settings will work for you. Install HWmonitor from the link below and run it in the tray by the clock. Laptop screen turns off but still running. Yes, it could be heat related. However, when I put the laptop down in it's normal horizontal position the screen shuts off withing a few seconds but the computer still running. [Solved] Laptop screen shuts off while on, have to force power off, computer screen shuts off computer remain on, Laptop screen shuts down but is still running, [Solved] My laptop's screen turns black but computer is still run. Computing.Net cannot verify the validity of the statements made on this But here's the thing, both times I had the laptop standing in a vertical position to let the air flow and so the laptop will be cool. Could be heat related. Here's an update. I've turned the laptop on with the battery connected and also without it connected and both times have operated for 10+ minutes. I'm worried what that could lead to. Maybe I have to do some more configurations? Connecting an External Monitor to Test the Display. I got the impression this was a new laptop. I'm looking at my Toshiba PC Health Monitor and everything there seems to be just as it was before all this happened. You may need to partially dismantle the case to clean things better. In this case, you can take the graphics card driver into consideration. So, is that what the message is referring to? If older, the air vents could be crapped up. Monitor the temperatures in real time by having HWMonitor display in the tray next to the clock. site. For example, you are listening to music or playing the games, but only the screen becomes black while the voice is still present. Making Laptop Screen Go Blank & Still Running. Laptops are meant to go to suspend or even hibernate modes when not in use to preserve battery life. Such Could all of this be heat related? To wake up the display, simply press any key, move your cursor, or use the trackpad. I installed HWMonitor and it all seems to be fine, the temperature isn't bad (imo) the lowest temp I recorded was 54 degrees (Cel) and the highest was 69 degrees (Cel). My desktop CPU is currently running 31C. If you don't have the skill set to open the case then you need to take it in for service. Some of you report the issue - the computer screen goes black but computer still running. https://www.windowscentral.com/how-fix-black-screen-problems-windows-10 I have a Toshiba Satellite L675D-S7052 and as I turn my laptop on it works fine for about 5-10 minutes however after that time frame my screen goes black. The information on Computing.Net is the opinions of its users. I don't have a laptop fan to rest it on but from what I've been testing it seems that heat is most likely the cause. opinions may not be accurate and they are to be used at your own risk. I have checked my power options and made one change because I am given a choice between two setting and did noticed it stayed on a bit longer but in the end still gave me a black screen. Everything is still running perfectly as I hear nothing that's out of the norm however like I said my screen goes black and noticed that the "caps lock" key doesn't light up either. Watch the temperatures and fan activity to figure out what is going on. So if you are hitting 69C the processor is probably slowing down to maintain that temperature. Everything is still running perfectly as I hear nothing that's out of the norm however like I said my screen goes black and noticed that the "caps lock" key doesn't light up either. So, my question is this. I couldn't record the fan activity because for some reason it wouldn't show and I couldn't figure out how to bring up that activity. and liability for the content of Computing.Net and its accuracy. To view those settings go to: I think cleaning all that dust out solved the problem. Laptop processors are set up to run at variable speeds depending on the demand. It's been working fine ever since I cleaned it out. And yes, I do hear the fan run. Please turn off the computer immediately, and return it for service." Is it possible that it could be the connections to the display given that the screen does light up and I can see my desktop and surf the web a bit before the screen goes blank (note: I see no flickering when it is blank either).