Question about ViewSonic VP920b 19" LCD Monitor

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VP920 goes to sleep

I have a Viewsonics VP920 that has been dropped. No sign of internal damage. It powers up and then goes to sleep after 10 secs. Power LED goes from Green to Orange. No components are hot. Screen is ok and displays a no signal message. If I cycle the power, it still runs for 10 seconds. It seems like the sleep timer period is wrong. I have removed the back cover, C805 is 150 volts from a 110VAC supply. Tks for your thoughts!

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Re: VP920 goes to sleep

Running Vista? Seems to be a pretty common problem. Thought it was a driver issue at first, since one of the newest released drivers listed a similar issue.

Posted on Aug 12, 2007

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Monitor goes to sleep immediately after turning on the computer. How can I fix that?

go to start,then pc settings,then monitor or power options the to power and sleep and change on plug to 4 hours and on battery to 10 minutes

Jun 11, 2015 | Computer Monitors

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My monitor won't come out of sleep mode

when the computer enter the sleep mode, it is possible that the computer remove the check mark from this output activation.

When you have multiple ouptut like a internal LCD and output on a monitor, when going into sleep then waked up, laptop reactivate the internal LCD without reactivated the secondary monitor.

you could need to go in desktop property and reactivate the secondary monitor with the check mark listed : Activate.

If you only have one monitor but still a dual output card or two separate video card same thing can happend. try to connect the monitor on the second VGA or HDMI output and see if the video goes there.

then reactivate your secondary output and make it principal.

Does also happend when your computer is connected to a UPS power and your monitor is directly on the sector. (laptop issu also)

if a brief power outage arrive then the monitor shut down (no power) and the computer continu, as there is no monitor on the output any more Windows will automatically deactivate this monitor. when power goes back, this output is no longuer providing video. I suggest putting the monitor on a UPS as well.

Jan 03, 2014 | Westinghouse Electric L1916HW 19" Monitor

1 Answer

Flatron W1943 sb monitor goes into power-saving mode. Does not display data.

If the monitor is displaying the "Power Saving Mode" signal to the monitor, then the monitors internal VGA board is functioning, so you can rule out a broken monitor. However I have seen monitors blow the internal fuse to the VGA board which causes a false "SLEEP" signal. If this be the case then it will require replacement of the fuse (usually a microfuse soldered onto monitor internal board) or most likely a monitor replacement.

To test:

Option A: you can connect another monitor to the monitor output on the back of the computer and see if you get a display. If this monitor goes to sleep, then it is likely that your Video card is malfunctioning. If you get a display, then it is definately the monitor.

Option B: If you have another computer, you can attempt to connect the monitor to another computer. Also most modern laptops will be equipped with monitor output, so if you have one you can check it. If the monitor sleeps, then it is definately the monitor. If you get a display, then it is definately the computer video card.

Hope that helps,


Sep 17, 2012 | Computer Monitors

1 Answer

Why does my screen go black?

The two most common problems with Viewsonics are bad capacitors on the power supply board and bad fluorescent lamps. If the background light comes on and then goes off after a second it's probably a fluorescent tube problem and not worth fixing. Capacitors are easy and cheap to replace. Bad ones look like tiny little AAA batteries with the tops rounded from heat and pressure.

Mar 28, 2012 | Computer Monitors

1 Answer

Monitor flashes on then off power light stays on whats wrong?? shows screen for about 3 seconds then goes black

Some 22" Viewsonics will have worn out bulging capacitors in the power supply that causes this symptom.
Monitor Mike

Apr 14, 2010 | ViewSonic 22" FLAT SCREEN CRT BLACK...

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Went into sleep mode and will not awake, gives message of not being able ti find vga source, but all connections are good and secure, then returns to sleep mode

Sounds like there could be a short in your video cable. I had this problem occur where i would boot up my pc and after about 5 seconds the screen would go blank. Also give your monitor a reset manually after starting up your box. Just unplug the power cable to it for about 10 secs and see if that helps. Good Luck

Dec 09, 2009 | HP vs17c 17" LCD Monitor

1 Answer

5 sec after starting windows the monitor goes to sleep itself.

go to safe mode.. change the power settings for windows...

to go to safemode.. simply restart your computer.. then press f8 several times til you see the boot menu.,.. select safe mode.. from there.. you should be able to boot windows.. change the power settings in control panel

Jul 09, 2009 | HP Compaq FP 7317 17" Flat Panel LCD...

1 Answer

HP Monitor goes into sleep mode

Problem of monitor sreen going black in 5-10 secs is generally dry solder joints around the inverter transformer on the inverter PCB.

Oct 29, 2007 | HP Pavilion F1703 17" LCD Monitor

1 Answer

XG-91D (Black) 19 in. Flat Panel LCD Monitor

Partition shows up as a MS-DOS partition This utility is designed save information you may be working on when it goes into sleep mode or when your battery becomes low on power.

Computer questions and answers listing 700 - 800 CH000735, How do I disable the power, sleep, or wake buttons in Windows?

Good Luck, please dont for get to Vote, Thank You.

Aug 03, 2007 | Xerox XG-91D 19" LCD Monitor

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