Cosmos S case, Evga 750i FTW Motherboard, PCP&C 860W Power Supply, E8400 OC'd to 3.9 GHz, Zalman 9700 CPU cooler, Dual Evga 260-216 SC, 4 GB RAM, 260 GB HD, Dell U2410 IPS monitor, Windows XP/SP3.
@DELL-Dennis S wrote:SpooRancher,Try going to the audio/video settings and change the the settings for the Video to be enabled during power save mode..the default is not enabled. Does this change things?
The roblem is the dvi cable. I replaced the motherboard and video card on mine and still didnt work. using only the blue cord, into the standalone VGI outlet at top of back of computer and its fine.
I know this is an old thread, but I just came up with a workaround to solve the same problem I'm having with my triple-display with (2) Dell 2001FP monitors, (1) Dell 2408WFP monitor, and an ATI HD 6450 video card.
One of the Dell 2001FP monitors will not wake after Windows Vista tells the displays to turn off. The power light goes from amber to green, but the screen is dark. Turning power off/on to the monitor does not revive it. Rebooting the computer works. Also changing the display resolution or color depth will revive it, but it's a pain to change the resolution to something else, then change it back again.
So, I found a DOS utility to automate the process.
Step 1. Head over to this website and download and extract NirCmd
Step 2. Put the files into a common path, like C:\Windows. I have a directory for my DOS utilities called C:\Util and have added it to my PATH environment.
Step 3. Create a .BAT batch file in the same location as NirCmd with the following contents. I called my batch file refreshmonitor.bat
nircmd setdisplay monitor:1 1600 900 32 60
nircmd setdisplay monitor:1 1600 1200 32 60
You will probably need to replace the "monitor:1" with the monitor index that is affected. The index starts at 0. So the monitor #1 would be "monitor:0". In my case, it was monitor #2 that was giving me the problem.
The other parameters are horizontal resolution, vertical resolution, color-depth, and frequency. They are all required. I found it faster to change the resolution and change it back again, than switch the color depth.
What you're doing is changing the monitors resolution to something else, then change it back again. Changing the monitor's resolution revives the monitor.
Step 4. Add a shortcut to your desktop to your refreshmonitor.bat batch file.
So that's it! It works really well and the only trouble I have to go through is when the monitor is off because the power manager has turned off my displays after 20 mins, is to double-click the shortcut on my desktop. After a few seconds of flickering as the display resolution is changed then changed back again, my monitor is revived.
Hope this helps.
Note: If someone knows how to run a task in Task Scheduler for when the displays are turned on (not computer awake, that's different), that would automate the whole process. There is an Event log System/Power-Troubleshooter event ID=1 which you could use to trigger running the batch file, but that is for when the computer wakes up. I'm looking for an event when the display wakes up.