Sleep mode on a dell monitor

This happens when there is no communication with video card. Check cables, re-seat video card, make sure monitor is set to correct mode. VGA (15pin blue), DVI (white), or HDMI.

"Power Save Mode" but it tells you to press a key or whatever?

were you able to reboot the PC?

if you can reboot the PC but no screen is showing up during Windows load (you can see the hard drive activity LED lighting up and your hard drive spinning), then, youre probably have a broken monitor.


Or if your problem is you cannot wake from power saving mode (after your PC goes to sleep, then its probably just the driver for your video card). VISTA has some issues with certain drivers that the PC cannot wake from sleep. http://www.ezsystemrepairs.com/

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_70466cb634a57543

please check your monitor settings may be sleep time is defined there. secondly check your system sleep time again. and also check window power saving mode. may be your system goes to power saving mode.
If you like this rate me kindly

old post 2017, 1 year old. Desktop and very old monitor.
This old monitor is CCFL and those fail super easy now.
built in 2005, backlamps are mostly dead now.
VGA cable? or DVI#1 or 2 port connected
the monotor told you PC went to sleep mode
I believe it. I bet the monitor works on any other PC you try, I bet.
so put the PC VISTA in into presentation mode.
(like we do with presentations, or kiosk mode, or using a nice DLP projector in theater)
just one app does this below
or learn to use
control panel, + Power settings, and advanced.
turn off all sleep modes,all hibernate modes.
turn on all wake-on modes, for sure USB ports.
make sure device manager is not showing dead devices (chips) if it is , that means get the missing drivers from Dell, for VISTA. Dell has them on your support page
and we are not DELL.

https://downloads.tomsguide.com/Dont-Sleep,0301-28162.html

Try holding down the fn and f8 keys or if your problem is you cannot wake from power saving mode (after your PC goes to sleep, then its probably just the driver for your video card). VISTA has some issues with certain drivers that the PC cannot wake from sleep

Check the power setting in control panel of windows. If you have a monitor from another computer swap them and see if the problem stays with the computer or monitor.

Good morning! kindly try to review/check the operations manual of your monitor as there might be proper set-up settings / compatibility requirements to a certain PC. best regards

I have a Dell Inspiron 530S, and it exhibited the same symptoms as rguggemos's & Wilburollie's.

I can put it to sleep, but when I try to wake it, it won't. The screen will stay black. I can hear the drives spin up, and the fans go on FULL blast, and the blue power LED stays flashing, but the computer will stay like that - no picture or anything. Then I'd have to press & hold the power button to force it off, then power back on. Not ideal.

The solution that worked for me?! On boot, at the "DELL" logo, hit F2 to enter the BIOS setup, go to Power Management, and change the standby mode from S3 to S1. The difference? S3 is a "deeper" sleep, w/ more components powered off, which is better, energy-wise, but it is more difficult to wake from. S1 is a "light" sleep. Give it a shot! Maybe it'll work!

Good luck!

- Mike

Stolen from another forum:

S0 (Working) is lit. The CPU functions in entirety; the conservation of power is on a basis of by-device.

S1 (Sleep). The CPU is stopped; The RAM is regenerated; the system functions in reduced power.

S2 (Sleep 2) The CPU does not have any power; The RAM is regenerated; the system is in lower mode of the S1.

S3 (Standby) The CPU does not have any power; The RAM regenerates at minimum; the power supply unit is in mode of reduced power. This mode is also called “Save to RAM”.

S4 (Hibernate). All is powered off, but the memory was saved like temporary file on the hard drive. This mode is called “Save to disk”.

S5 (Off) Everything is shutdown. Means you need a full reboot.

Turn the whole pc off then back on. If the LCD stays in power save then I would try a diffrent monitor on the PC. If that fixes it the the monitor is probably stuck in power save. Check www.lcdrpair.us for parts and instructions.

Press the power button on the Computer it should come out of sleep mode then if it doesn't hold the power button of the computer down until the system turns completely off.

Then turn back on the computer should now boot fine. Once in windows goto control panel and select power option then adjust the setting.


Hope this helps you
Cheers J