Have XP Pro, SP2 on all machines. About half of them are running dual monitors. Works great, just plug the second one in via a USB port and go to Control Panel/ Display/ Settings and set up which one you want to be No. 1 and 2. But have a new monitor to plug into a system and it won't work. I've plugged this monitor into another system and it works fine. I get power and I get a test pattern of a sort on the monitor itself when it's plugged into the correct computer. I've replaced the USB cable just in case. And I get a little prompt that tells me it's found new USB port. The problem is, when I go to Control Panel/Display/Settings the dual monitor icons and options are not there. And I know it is there whether you have a dual monitor or not, it does not depend on whether or not you've added this hardware. So where is it? How do I get it? This is generally one of the easiest things to do......
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dual monitor setting not available in control panel
- Thread starter boryan
- Start date
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Since you have others of these working, I would think that you know what you are doing with them.
These are the troubleshooting items that come to mind:
1) Do other USB devices work on the computer in question in the given USB port?
2) Did you check device manager to see if the USB video (or however it shows in device manager) has a yellow warning icon indicating driver install problem?
3) Are you supposed to install software first before pluggin it in, does it ask for software after you plug it in, or is this automatically recognized by Windows? And have you removed all traces of the drivers to start the install again from scratch? (You may have to do some registry editing - check manufacturers tech support to see if there are tips on completely removing the device in order to start fresh.)
4) [Wild guess] There may be something amiss with the primary card's drivers that is preventing the second from being recognized. Try reinstalling the primary card's drivers as well.
These are the troubleshooting items that come to mind:
1) Do other USB devices work on the computer in question in the given USB port?
2) Did you check device manager to see if the USB video (or however it shows in device manager) has a yellow warning icon indicating driver install problem?
3) Are you supposed to install software first before pluggin it in, does it ask for software after you plug it in, or is this automatically recognized by Windows? And have you removed all traces of the drivers to start the install again from scratch? (You may have to do some registry editing - check manufacturers tech support to see if there are tips on completely removing the device in order to start fresh.)
4) [Wild guess] There may be something amiss with the primary card's drivers that is preventing the second from being recognized. Try reinstalling the primary card's drivers as well.
- Thread starter
- #6
Well after thinking about this, I think I know what's the problem. Five out of the six machines that have dual monitors are laptops. So I'm plugging the extra monitors into the blue serial port that is obviously provided for just such a thing. The 6th one is a brand new Dell computer that comes equipped for dual monitors. The one I'm trying to make work is about a 1 1/2 year old HP, that don't know nuthin' about dual monitors. So, I'll get an extra video card and install it and then plug the new monitor into that and see where we go. Thanks for all your thoughts and advice here.
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