My second monitor of my dual monitor set up does not wake up:
The monitor seems to be in sleep mode and nothing will wake it up. The light (power LED) is in between an amber and green color (it does not flick, blink or anything, it just stays constantly on in the same color). And the monitor screen itself is off (ie no light flickering, backlight or anything) and it stays that way whatever I do: reboot my machine, push the power button, etc.
When I unplug the power cable from the monitor, the light stays on for a few seconds and then goes off. When I re-plug the monitor with the cable the same symptoms show again.
Is there a way to reset to a full OFF mode? And what do I need to fix/change to stop this happening?
This is a second-hand Dell E173FP that I purchased and set up as a second monitor in a dual monitor set up. It worked fine for 2 weeks. Then the problems described above started. At first, and for a few days, unplugging the power cable did work fine (ie. it put the monitor completely off and starting afresh after plugging it back) but now it seems just frozen in sleep.
My set up is the following:
- Dell Dimension 2400 with a Intel 845GV chip set and Integrated Video Controller (Intel 3D Extreme Graphics).
- Windows XP Home SP2.
- The integrated video controller is linked to my original monitor: Dell E172FP - which works all fine.
- The Video card for the additional monitor (the one faulty) is a 8MB Matrox Millenium G200 PCI graphics card (Model No: G2+/MSDP/8, bought second-hand as well).
- In terms of BIOS settings:
- I had to change the Primary Video Controller to "Onboard" instead of "Auto" for the Integrated card to be recognized as primary. Leaving it on Auto was putting the taskbar on the opposite screen to the desktop..
- The Power Management options are unchanged:
Suspend Mode: S3
AC Power Recovery: Off
Low Power Mode: Disabled
I tried several things such as switching connections between monitors and video controllers, plugging the integrated video controller to the faulty screen only (without the other screen) and rebooting my machine but that did not change a thing. It seems impossible to bring that monitor back to life.
It is really annoying as I had just thought of setting turning off the monitor to "Never" in the Power Scheme options in Windows Control Panel (and that seemed to have done the trick). But the problem occurred again when logging with a different user that used a different power scheme and now my screen is in that frozen sleep state which I need to get out.
