Ok. ive had this problem for awhile now and not sure what to do about it. no matter what application i use on my pc after its on for like 10 minutes the screen keeps flashing from normal to black to the no signal screen to back to normal , its happening quite frequently. ive tried replacing my dvi cable, cleaning it, making sure everything is in tight. i've already brought it in to the shop twice. first time they said they could'nt find the problem. second time they said it's a virus. i've scanned it with multiple anti virus programs and its still happening. any help would be much appreciated.
This is incorrect. I have the same problem. I purchased a new monitor. a different brand and all was fine for about a month...now it has returned. I think it may be related to my graphics card...that is my next step to fixing this problem. Let me know if you had any luck Cheers
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Re: monitor flashing from normal to black
If this is a lcd monitor, sounds like your back lamp is going out. check to see if you can see your desktop by looking at different sharp angles from above the monitor and if you can barely make out your desktop icons. If it is the back lamp, I am sorry to say it will be expensive to replace (I had the same problem myself and it was just cheaper to replace the monitor).
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Hi , Ok , lets go to your control panel and find the recovery icon , press on that icon and do a recovery of your system , also check screen res. to make sure your settings are ok , let me know if this works for you if not i will advise futher Good luck Roy
Hi! For dell machines when u unplug the video cable/VGA from the tower while the system is on it will show monitor self test.If you are seeing a black box moving around the screen it means that monitor is ok.Check connection between monitor and tower.Make sure cables are securely plugged in.Check if the tower is ok. There is a possibility that your monitor is ok but the tower is not.check the power button (whats the color) if amber/orange, this means there is something wrong the the tower. If its blue or white it means its ok.Also check if you are going to hear one beep, it means system is booting up properly. If tower is ok and you are using a expansion video card then try to use internal one, normally its the vga port above the usbs.If you are going to use onboard video card make sure you enable it first in bios.If all things fail, contact your manufacturer, if the system is under warranty then they will send a tech to check the machine.hope this helps...
Quick and dirty here we go, before you click finish see if the hard drive light is on, if it is is it on steady or is it flashing. Doesn't matter so long as it is on, go have coffee for 30 minutes or so and then come back.
Check to see if the hard drive light is still flashing if it isn't then do this press ctrl+alt+del this will bring up an screen. On windows 7 you want to click on task manager then open the applications windows, look and see if there is anything there that says not responding. If not click the finish button and let it run for awhile.
Thing you have to realize about this system of installing is that everything is compressed and needs to be unpacked and this can take awhile to do this, also make sure that network cable and phone cable are disconnected from the computer.
Under display settings, it's best to use default theme like vista or xp theme. You can also go to screensaver, then power options and set how long it takes for monitor to shut off. I also recommend updating the video card drivers.
Check to see if this problem follows in safe mode. Reboot and when the Dell splash screen comes up tap F8 until you see the multiboot options. Scroll to "safe Mode with Networking" let the machine boot up and see if you have a screen. If you do, right click on the desktop and set the resolution to 800 X600 and reboot normally. Usually when a screen goes blank in normal mode but shows up in safe mode means you have an incompatible resolution for the monitor or graphics adapter. This may be a driver issue or hardware. If the screen boots up in normal mode at the lower resolution, then try and go to properties again and bump the resolution up a bit, if it blanks again, try to go online and update the driver for the graphics chip.
Hmm it seems to be problem with Power Supply, but still if you can give a try connecting your system into other socket may be which is properly grounded one.
if the above didn't fix your issue, i would suggest you to disassemble and then assemble it again. try changing the data cable as well..
Last option left is if you have a spare SMTP checkout with that.
Let me know if it works..!!
tricky!! oh hi im Dyanne.. a totally unresponsive black screen can be th result of failure of th LCD or LCD inverter.( a specialized piece of electronics that energize th screen) to rule out th failure of th video display adapter or circuitry, try plugging in an external monitor..a standard pc monitor.. attached direct to th lappy. if it works, (as i susopect) th motherboard and video display are both working ok and its th LCD which is at fault. this can sometimes be repaired by a competent specialist. good luck xx