SOURCE: LG Flatron 775FT monitor distortion
Doesn't look very good :( You can try returning to the "factory settings" in your monitor's menu. Maybe try the monitor in another computer to check whether your graphics card is faulty. But all in all it looks like a fault from the monitor :( Good Luck!
SOURCE: DVI input on monitor not working
Contacted viewsonic about this issue- they suggested- have both dvi and vga hooked up to same machine. start with poweroff on both. power on monitor, then power on computer. when you see display coming from the vga, power off pc, then disconnect vga cable, turn off power to monitor, disconnect power cord from monitor for 5 + seconds, reconnect power cord, power on monitor, then power on pc.
If this doesn't work to get the dvi working, (as happened to us) we returned our monitor for a replacement, since it was still under warranty.
SOURCE: dancing red pixels
Your Video Card´s DVI output is probably damaged. You will have to replace your video card , or use only the VGA output.
SOURCE: Dell 2407WFP Monitor losing signal and having colored line artifacts
To your problem number 1:
I would check to see what the refresh rate is on your main monitor. Especially after waking the monitor from sleep, Windows tend to forget the refresh rate settings on secondary monitor and set it to the same as your main monitor. If your main monitor is set at 75hz or something, it could cause the secondary monitor to display the "out of range" message. When you reset the "extend my desktop to this monitor" setting, it probably resets the refresh rate to 60hz again.
This can sometime be remedied by checking to see if the monitor drivers are installed correctly. A lot of times the video card driver also gets in the way. I've had a lot of experiences with ATI drivers behaving very sporadically with multi-monitor setups, where they will consistently change to "plug-n-play monitor" and thus reverting any custom setting I have.
As to your problem #2:
I've had a fair bit of experience with this as well. The fact that the line shows the same way regardless of the monitor's own tilting orientation, means the error is probably coming from the video card signal rather than the LCD panel itself. This usually is a foresight of a nVidia card that's about to break.
I've went through many, many nVidia video cards over the years. They all inevitably break over time, probably because nVidia relies strictly on third party vendors... and to stay price competitive the third party vendors cut corners wherever they can. I always get the same horizontal line error over time as you described here.
The only way to know for sure, is to get a replacement video card, borrow one from a friend if you can, and see if the same problem still comes up. It's very possible for this to show up on only one of your two monitors. Try switching the monitor output as well, to see if the line now shows up on the other monitor instead.
SOURCE: Monitor screen turns off almost immediately
Do you connect all monitor wires on ... Do you got with screen or computer some MSI thing... the monitor blue wire must connect that thing then that MSI or whatever must connect to computer
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