I'm having problems with the KVM3122 and a desktop with a nvidia 8300 video card. For some reason when the monitor (a 17 inch viewsonic) is running through the KVM the color is way off. It appears as though one of the color channels is not coming through and the image is washed out in blue and red. When I connect the computer directly through to the monitor this problem goes away. Any ideas?
Check the KVM switch and make sure that the cords are not frayed or the device did not overheat. Also make sure that the cords are all securely fastened into the approptiate plugs. (Sometimes - however inconvenient - it is useful to tape the plugs in securely as well as ***** in the monitor plugs with the small knobs on either side of the plug. If the cord is defective you may need to buy a new one. Some of the pins from the cord may be missing and they may be the ones responsible for the missing color (green). I also suggest, checking the monitor and KVM color settings (if presant) before doing anything else. Sometimes devices auto calibrate and mess themselves up instead of doing any good. I may have more solutions later, if these don't work. There may just be a problem with the kvm switch because according to what you wrote, it seems that nothing like this happened to yor monitor before, did it?
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One of your applications are changing your color scheme to 16-bit because it isn't compatible with your OS or graphics card. Try reinstalling your drivers, then disabling programs one by one when the problem occurs. For example, games that used to run on windows XP or older tended to change the color scheme and resize the monitor to 480p.
You should be able to adjust the color balance for the card. There will be software on your machine that allows you to set the color balance and other things. Usually there is at least some red However if the red is totally gone then it could be a problem with the cabling/connector between the desktop and the monitor, like a loose pin or wire. It is possible that it may be the monitor that has the red out. So first check your connections and your color balance. If that seems ok then try another monitor before you go further. If a different monitor has the same problem (with different cabling too) then you will know.
You could try right-clicking your desktop and going to settings. There you need to select the other (grey or a 2 in it) monitor and select "extended desktop". If that doesn't help, check the monitor cable. (maybe try another one, you never know...)
If it's still not detected, you could look around the NVidia control panel (I myself have always had ATi graphics cards) for a "detect monitor" option.
As i understand from the situation, Please do the following:
1. First confirm that the problem is with the monitor. You can do this by trying this monitor on any other CPU. If the monitor behaves Fine, the problem is with the Video Card (Nvidia in your case). If the monitor behaves the same way on other CPU as well, i recommend taking it to nearest service centre. Please Do Not open monitors yourself (Some CRT's may have a possiblity of electrocuting people because they can store a charge upto 25000 Volts in Capacitors). Better get that serviced by authorised people if it doesnt work on any other computer.
2. If the above monitor just works fine on any other machine, probably the problem lies with Video card adjustment.
Please Right click on an empty place on your desktop and click on Nvidia Control Panel. (or you can go to control panel and try to run the same from there).
you will see that Nvidia's video card utility will open. On the left hand side, you will find (depending on the model) 3 basic options.
1. 3D settings
3. Video & television
Expand the Display option and select "Adjust desktop color settings" on the extreme right on the top, you will find an option of "Restore Defaults." Click on that and close the utility. Check if that has resolved the problem.
If not, please try resetting all the options back to Default on the Video control Panel one by one.
I am hopeful that it will solve your problem.
Feel free to contact me if it doesn't solve. I will try to help you till it does.
You cant.. Unless the nvidia card you added has two video OUTs. Plugging in a aftermarket card causes the motherboard to disable the onboard video..
If your nvidia card has two "outs" then you can use two monitors... most newer nvidia cards support this. sometimes it requires an adaptor, but usually it was included in the box
Hello Virna, i have that exact graphics card and dell GX270 desktop here at home, tho it has been awhile since i removed the Nvidia PCI card for a more favorable AGP card. From what i remember, first check your BIOS (hit F2 on startup) and select integrated devices, scroll down and make sure your default video output is either PCI (if available) or AUTO) exit saving changes. If that yields no result. Plug in a second monitor to your old integrated video output, if you can view windows after bootup from there, then you can install the proper Nvidia display driver for windows Xp (available here: http://www.nvidia.com/object/winxp_175.19_whql.html ). After installing, right click on the desktop, select properties, display settings tab, and make sure the Geforce card is the main monitor and the desktop monitor. Click apply, unplug the integrated VGA output, and restart. Hope this helps.