Monitor indicates no signal (shuts off) when computer goes into log off mode or when I am not using the computer. I move both cables sometimes it will come on sometimes not. Turning switch on and off sometimes works. I have checked all connections and they are connected properly. Did not have problems until I moved computer.
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Re: Monitor indicates no signal shuts off
Try checking your windows monitor settings and disable the windows monitor shutdown timer. also, check the cables and try to keep them firmly in place (duct-tape would be useful for that). if the problem is related to windows settings, then ok. if not, use the second resolution. I'm glad if could help!
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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.
power save mode indicates no input signal. Check the input signal with a known good monitor. if the signal is good then dell monitor is faulty. Power cycle (unplug the power then plug it back in) the monitor to reset to factory and if it still goes directly into power save mode the unit is faulty.
I guessing that when you say "goes off" you mean it goes into power-saving mode?
Assuming that you're working on the computer at the time (so it's not actually going to power saving mode from inactivity), this might indicate one of two things:
a) the VGA cable to the computer is not in a good contact with the monitor. This might happen if you haven't used the screws to fix it in place, just try to plug it fully in on both ends (computer and monitor). If the monitor sees to VGA signal, it goes into power saving mode automatically.
b) there's a problem with the monitor that builds up after a few minutes. When you turn it off, it "cools down" and can be used again. If that's the case, you should take it to a dealer's shop and have it checked (or replaced if it's still under warranty).
Unfortunately, this is a standard problem, as when your laptop goes into sleep mode, it shuts off power to the secondary monitor, without giving it the signal to go into sleep mode. You could try digging around your settings, but most likely you'll just need to turn off the monitor when you're not using it.
Possible reason is that input signal goes out of range that probably a Screen refresh rate that the monitor cannot handle. Instead of bursting into flames, the monitor shuts itself down as a protection feature. Look at the monitor manual if you got one.
Safe Mode should allow the monitor to work in the problem account.
Boot in Safe Mode (see below) Switch users to the problem account Right click the desktop Select Properties Click the Settings tab Click the Advanced button Click the Monitor tab Select: Hide modes that this monitor cannot display Select a different Screen refresh rate Click Apply twice and then Click OK
Or try this:- power on the system and press and hold F5. When a screen appers with some option, try to find a option something realted with VGA setting. Click that option and let pc start normally. It will surely work
If the monitor is going into sleep mode the normal power led will change to another color. This indicates loss of video signal or possible out of range resolution. If the picture goes dark and the power lite stays on, you have a backlight malfunction. It can be bad capacitors causing an inverter power fault or it may have worn out backlights causing a shutdown condition. Monitor Mike
OSD Warning Messages
A warning message may appear on the screen indicating
that the monitor is out of sync range. Cannot
Display This Video Mode
This means that the monitor cannot synchronize
with the signal that it is receiving from the computer. Either the signal is
too high or too low for the monitor to use. See Specifications
for the Horizontal and Vertical frequency ranges addressable by this monitor.
Recommended mode is 1024x768 @ 60Hz.
Occasionally, no warning message appears, but the
screen is blank. This could also indicate that the monitor is not synchronizing
with the computer or the monitor is in a power save mode.
The problem is in the "soft switch" technology:
On some of Sylvania's newer monitors they have incorporated what is called "soft switch" technology. This allows your ATX power supplied computer to turn your monitor on and off using it?s software controls. Therefore, your monitor?s light will always stay on blinking even when your computer is off.
The monitor in normal operation consumes about 80W of power; in the "OFF" state it will be reduced below 8W. The "OFF" mode of the monitor can be controlled by the PC input signal or by pushing the soft-power button to disable the PC signal control for manually turning off the monitor screen.
Thus, when the monitor is in soft-power "OFF" mode it still consumes a very small amount of power. For the purpose of making it noticeable to the user that the monitor is in soft-power "OFF" mode, we designed the power indicator to provide for a slow blinking signal (every 2 seconds). If you need to totally turn off the power, then the power cord would have to be unplugged. The same is true of the PC itself, but the PC does not provide for notification while in "OFF" mode.
Your monitor looks like it may be in need of repair, contact info:
PTI Technologies Inc.
7372 Doig Dr.
Garden Grove, Ca 92841
Hours: Mon - Fri 8:00am to 6:00pm PST