Mine similar except the blue light stays on ,monitor goes black
I left my computer on ,when I come back it has gone to sleep mode usually when I press any key on the keyboard my desktop appears but this time nothing happened. My keyboard is not working and the monitor just turns on enough to show the title acer and then says no signal and goes black. The blue light for the power is still on and the other blue light to say the internet is connected stays on. But I can't even get into anything no desktop no nothing just black screen. I've tried turning it off and reconnecting wires and usb cables but to no avail!!
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Re: Mine similar except the blue light stays on ,monitor...
Have you tested the monitor? The monitor could be faulty. Try hooking up the computer to another monitor or another computer up to that monitor if possible. If the monitor is testing good then make sure all USB devices are disconnected and try to boot again. Then open the case and blow out any dust. Check the motherboard screws are tight. If the screws holding the motherboard to the case are loose it can cause a grounding issue. Then swap out the power supply with a working one and see if that fixes it. Disconnect hardware one at a time and re-boot. One of the devices...cd-rom,harddrive,ect could be faulty. Make sure the video card is fully seated and test the card in another working computer or test a working card in that computer. If it has on-board video then install a video card if available and see if it works. If none of these things work then the board is bad and needs replacement.
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I disagree with ikkenom only due to the symptom of the flashing blue light. This would indicate to me that the monitor is not getting any display signal and is in sleep mode at least the is what happens on my Samsung monitor. Used to be that they use a two color led in the monitor, green when ON and getting display signal and amber or orange when in sleep mode. I would check the computer by trying a different monitor. If you have a second monitor, great, if not, maybe a friend will let you bring your computer over and try the computer with their monitor. Could also be a display adapter setting. Do you get any change when you first turn on your computer? i.e. Do you get the BIOS or manufacturer screen when first turned on? Also if you disconnect the monitor cable from the computer and power cycle the monitor, do you get a No Signal display for a few seconds before the monitor goes black and the blue light starts flashing?
Let me know what happens with the testing above or if you need further instructions to carry out testing.
Sounds like your monitor is bad. Try another monitor because if the video card was bad and the monitor is working you would get a No Signal message on the screen. Borrow a monitor from a neighbor, friend, relative or co-worker and connect it to the computer. If the Borrowed monitor displays ok, then your original monitor is bad. If the Borrowed monitor does the same as your original monitor and does not display anything, then there is an issue with your video card.
If this monitor (HP w1907) is going into sleep mode the normally blue power led will change to yellow. This indicates loss of video signal or possible out of range resolution. If the picture goes dark and the power lite stays blue, you have a backlight malfunction. It can be an inverter power fault but this model mostly has worn out backlights causing a shutdown condition. Monitor Mike
Check your power options in your control panel - default is usually 20 minutes to put monitor to sleep - you can adjust the time there. The monitor itself does not usually have this as a function so I would start there first.
It sounds like you have a monitor with a common problem. After a few years some LCD monitors
will blow a power supply. The problem is caused by parts called
capacitors overheating in the confined space of the monitor. If you are
good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work
fine. The capacitors do need to be installed with the correct + and -
connections, note the stripe on the old one and insert the new one the
same way. If you don't want to try the repair yourself we offer a repair service contact us for details.
I hope this helps, if so please rate my solution.
Corporate Computer www.ccl-la.com
Over 21 years of computer and printer support/repair
it is going into sleep mode, good luck with this.... i am currently asking how to get my hard drive to quite putting my monitor into sleep mode.
although it hasn't worked for me because my screen stays black, one of the options given to me is to try to start in safe mode and then adjust your settings to "never" on the energy/sleep/hibernate mode
some one else suggested that i remove and reseat the video card
I have an LG Flatron 19" black w1952TQ that I bought on 2 Apr 2008; when it goes into sleep mode, will not recover. Did the online troubleshooting, reseting things, unplugging/replugging all cables, nothing works except restarting the computer, and that only works until it sleeps... Read more
Sound's to me more like a Video card issue, try the monitor in another computer if you are able 2 , otherwise please make sure video card is in tight and secure , not 2 sure what you mean by sleep mode, are you using windows vista? or xp? you may need to change some settings on your operating system , when you turn on computer do you see anything on screen at the start up? also when you click the menu button on the monitor does anything come on the screen then ? if so then its in your opertating sytem settings , disply settings e.c.t, i really need more info to help you solve this , the best thing i can suggest for now is to try the lcd on another computer a friends computer maybe , before considering the monitor is toast , hope this helps some way , good luck !