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Trying Set Up 2 Monitors On 1 PC

Hi there,
I wanted to set up 2 monitors on 1 PC, but when i go to do this it says INPUT NOT SUPPORT
on both screens. The original monitor works fine with the PC, but the PC only has 1
VGA port at the back, so i brought a VGA switch, which is 2 VGA cables going into 1
so i can have 2 monitors working at the same time, i tried this at home and it worked fine,
but when i tried doing this at work it dosen't work.
Is there something i have to set on the PC itself so i can have both of them working?
If anyone can get to me when they can that would be great.
Thanks.
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ASGO09
Asked:
ASGO09
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1 Solution
 
thegofCommented:
It sounds like your work PC is sending a resolution signal that isn't supported by the monitors.  Try setting the resolution on the work PC lower to start and then increase until you get the error. Then you'll know the max.
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ASGO09Author Commented:
I tried that but didn't work, it seems that the original monitor that is conected to the
PC is the only one that works on that computer, i tried conecting the second monitor
on its own to the PC but it didn't work, just said the same thing, INPUT NOT SUPPORT, once i plugged
the original monitor back into the PC it worked straight away. Should i unistall the driver for original
monitor? it s a HP  w2228h Wide LCD Monitor
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thegofCommented:
You can delete the driver, or select generic VGA.  One other way to test this is to try booting in safe mode which selects a generic driver. If it works there, you just need to get the driver properly configured.
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GraemeEvans1Commented:
if you boot up the work pc with the second monitor directly attached do you see the initial bios screen and the starting windows splash screen? if not then either the monitor is knackered or has somthing set up on it wrong, like which input it's actually using. can you turn it on without the PC and on the on screen buttons select reset defaults? there is usually a menu where you can adjust colour settings and sharpness etc.

if you loose the picture when it gets to windows then (when windows loads the driver) then its a driver/resolution issue.

HOWEVER...

i'm sure you have a great reason for having two monitors with the same thing on each but usually this is done with a twin output graphics card... its very easy them. and they need not be expensive...You can if you want even display different things on both screens. and us the right resolution on each screen rather than having to use the same on both.
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ASGO09Author Commented:
It does work in safe mode, so it must just have to be configured, what's the best way to do this
thegof?
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thegofCommented:
I would start by deleting the monitors in display manager and only hooking up the least capable monitor.  If that doesn't work you can then try deleting the display adapter , rebooting with the dual monitors (it'll come up as generic VGA), and then reinstall the driver.  Other than that it's hard to guide you directly.
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jamietonerCommented:
A vga switch isn't going to give you 2 monitors running at the same time. You'll just be able to switch between 2 monitors. If you want 2 monitors that display the same thing(clone) you can get a vga splitter but both monitors must support the same resolutions. If you want 2 independent monitors you'll need to buy a video card that supports dual monitors.
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GraemeEvans1Commented:
I assumed ASGO09 has a splitter as he/she had it working on another PC (home) and was just calling it by the wrong name.

ASGO09 - can you confirm?
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ASGO09Author Commented:
Sorry GraemeEvans1, your right, it's a VGA splitter that i have, ive deleted the driver
for the monitor, but when i shut down the computer and started it up again, it still dosen't
work off the splitter, the main computer which is the one that has been always been
plugged to the PC says INPUT SIGNAL OUT OF RANG. CHANGE SETTINGS TO 1680x1050-60Hz,
but those settings are already set on the computer, and the second monitor, the new one, is saying
INPUT NOT SUPPORT.
Ive treid to conect the new monitor to the PC and that does not work on it's own as well, it seems
the original monitor is the only one that works on the PC, anyone know why? would there
be something wrong with my video card?
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jamietonerCommented:
What kind of dual monitor setup are you wanting? As I mentioned before using a splitter will only clone the image onto 2 displays. A possible cause of the issue you are running into is the current video card's signal is too weak and the splitter has weakened it further to the point that its unreadable, or the splitter is bad(broken wire, bent pin, etc).
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ASGO09Author Commented:
Splitter is fine cause ive tried this on other pc's and it worked fine on those, the reason for 2 monitors
is that the new monitor has a touch screen panel attached to it. I have a retail shop
and the reason for the touch screen is so customers can put there details straight into
the system, thats why i need a dual monitor setup. What about the fact that another monitor
on it's own will not work on this PC, only the original monitor seems to work on it for sum reason.
Is there something im surposed to configure so any monitor can work on it?
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jamietonerCommented:
Could be a DOA monitor have you tried it on another system? If you don't have another system to test with connect just the w2228h to the system(without the splitter) do you see the bios screen and the beginning of windows loading?
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ASGO09Author Commented:
Ive tried the new monitor on 2 other systems with and without the splitter, and it's worked fine,
when ive connected the new monitor to the PC that we  have been speaking about, it doesen't
work, just says input not support, ive gone to re-start and bios screen comes up, but
when it comes to startup part where you enter your password it goes blank and says
INPUT NOT SUPPORT, it dosen't make any sense. Ive started up the PC in safe mode and the
monitor works fine, only when im starting it up the normal way it dosen't work. What do you think?
I'm pulling my hair out with this thing.
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jamietonerCommented:
Have you tried installing the driver for the monitor?
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ASGO09Author Commented:
Ive just tried that, re started the computer but still nothing, you see the bios
screen when it starts up but than nothing, could it be a faulty part with the
PC itself?
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jamietonerCommented:
Possible but here's something else to try. Boot into safe(with the new moniotor) and uninstall the video cards driver, restart into normal mode and install the latest video driver.
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thegofCommented:
The computer is shifting to an unsupported resolution which is why it's not working. I see from your earlier post that you're using an HP w2228h which wants to be driven at 1680x1050. You can also use lower resolutions as well, for example what you're seeing on bios startup and/or safemode. (see http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01489685&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&product=3733146)

What's the other monitor (make and model) we can then use that to find the best resolution possible for you? What happens if you set the computer (before connecting the splitter and extra monitor) to a lower resolution, say 1024x768?  640x480?  Set the lower resolution, apply the change, then swap to the splitter, rebooting if necessary.
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ASGO09Author Commented:
The other monitor is a AOC 19" (4:3), ive tried setting the monitor to a lower
resolution as well, but that still has no effect. The AOC monitor only works in safe mode,
you only see the bios screen in normal mode than nothing, just says INPUT NOT SUPPORT,
the HP monitor is the only monitor working on the PC.
The HP monitor has only been connected to this PC for about 6 months, before that ive had
other monitors connected to it, it seems that when i connected the HP monitor to the PC,
its the only one that will work on it now.
Any other ideas before i get a tech guy out?
 Thanks for all your help to this point guys
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jamietonerCommented:
What resolutions are you trying to use? Did you try reinstalling the video driver as I suggested in my last post? The 19" AOC doesn't support the same resolutions as the 22" HP. If you want to use clone mode its highly recommended you have 2 monitors that support the same native resolutions, ortherwise you're stuck finding a low resolution they both support and usually both end up looking blocky an pixilated.
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ASGO09Author Commented:
The best way to uninstall the driver is to go to device manager, click on the display adapter icon, and
the video card driver should be listed, right?
If this is so, the only drivers listed is Intel(R) G33/G31 EXPRESS CHIPSET FAMILY and
LOGMEIN MIRROR DRIVER
I would be uninstalling the intel driver right?
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thegofCommented:
Yes, the intel driver assuming it's in the Display Adapter area. Just highlight it and press the delete key.

Before you do this, I wanted to make sure one last time you've tried the following.  I'm guessing you have this AOC monitor since you didn't say which model but mentioned touchscreen. http://www.cyclotouch.com.au/product_info.php?products_id=2487

So, it has a native resolution of 1280x1024. Your HP w2228h supports up to 1680x1050. So with the HP w2228h connected, see if you can set the display resolution at 1280x1024 (don't forget to let us know if it works). Then follow the sequence below.

1. With HP w2228h connected, set resolution to 1280x1024. Will the HP w2228h Sync?  
     2. If YES, then connect switch and AOC monitor.
          3 If the AOC doesn't work, disconnect AOC return to (1) and try a lower 4:3 resolution
          4. If AOC does work, you're done :)
    5. If NO (w2228h doesn't sync) try a lower 4:3 resolution. Try 640:480 as a worst case since it's VGA mode.
End.

Note that if you want the touch screen functionality to work, it might need to be in it's native resolution for proper scaling.

Looking at the INF file for the HP w2228h it should support the following resolutions. I've bolded the supported 4:3 modes you should try.

HKR,"MODES\640,480",Mode1,,"24-83,48-76,-,-"
HKR,"MODES\800,600",Mode1,,"24-83,48-76,+,+"
HKR,"MODES\1024,768",Mode1,,"24-83,48-76,+,+"
HKR,"MODES\1280,960",Mode1,,"24-83,48-76,+,+"
HKR,"MODES\1280,1024",Mode1,,"24-83,48-76,+,+"
HKR,"MODES\1440,900",Mode1,,"24-83,48-76,-,+"
HKR,"MODES\1600,1000",Mode1,,"24-83,48-76,+,-"
HKR,"MODES\1680,1050",Mode1,,"24-83,48-76,-,+"

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ASGO09Author Commented:
That is the same touchscreen monitor, but there is no 1280x1024 in the resolution area when the HP monitor is connected, only 1680x1050, this is what it is set on, 1600x1000, 1440x900 and 800x600,
the only way to get 1280x1024 is to click on advanced setting in the display area and than click
on list all modes, once in there ive selected 1280x1024 resolution, but the HP screen
still didn't even sync at that resolution, screen was fine but didn't connect with the AOC monitor,
the AOC monitor didn't work on it's own as well. Just said INPUT NOT SUPPORT.
Should i uninstall the video card driver and give that a go?
Also, just say i wanted to get rid of the HP monitor all together and connect another monitor to
this PC on its own, even that does not work, for sum reason only the HP monitor is the only one
working, should i still attempt to uninstall the video card driver or try something else to try to get
another monitor, say the the AOC monitor to work on this PC first?
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thegofCommented:
The code section above is from the monitor INF file. Go to the HP site and download, then install, the monitor inf file. It should then support the 1280x1024 res
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ASGO09Author Commented:
Ive restarted the PC in safe mode with the new monitor and deleted the video card driver like you
said JAMIETONER, when ive gorne to restart the PC in normal mode, the AOC monitor works
on its own and with the the Hp monitor connected thru the VGA splitter, when the PC starts
up it automatically reinstalls the video card driver, when install is complete it says to restart
computer for install to be completed.
If i don't restart the computer everything is working fine the way i wanted it to work from day 1,
but if i restart the PC everything goes back the way it was, only the Hp monitor works thru
its own VGA cable, not thru the splitter, and if i connect the AOC monitor that does not work
either.
Am i able to install a different driver for my video card? does that sound like the issue? or do i have to replace the video card in the PC to do that?
The video driver is Intel(R) G33/G31 EXPRESS CHIPSET FAMILY
Thanks.
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ASGO09Author Commented:
thank you for all your help.
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