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Dual monitor issue with Latitude D430 and docking station

Laptop model: Latitude D430
Dual monitors: 22" Dell LCD
Operating System: Windows Vista

In Vista I can only set the resolution to one of my monitors (on the right) to 1680 x 1050 pixels. The other monitor (on my left) doesn't have that resolution, however. So if I change it to anything other than 800 x 600, the monitor either goes to standby mode, or gives black screen with message saying it's intended for 1680 x 1050.

Not sure what the problem could be here or how to fix.

I've tried rebooting and redocking laptop, but same issue.
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Will SzymkowskiSenior Solution Architect
Most Valuable Expert 2015
Top Expert 2015

Commented:
Have you taken a look at the refresh rate on the monitor to make sure that it is not set to high? Sometimes when switches between resolutions monitors can timeout for the simple fact that refresh rate is too high.
SteveArchitect/Designer

Commented:
Could you advise how you have got two monitors on the base station please?
IE, one on docking station VGA port and one via USB adaptor.

Model numbers if possible as some of these things do not play nice.
>> So if I change it to anything other than 800 x 600, the monitor either goes to standby mode, or gives black screen

If still cannot, it could be the output is mirroring the display of your laptop's LCD size / resolution ..... try press the "Fn" key + the key to change the display either to external monitor or internal monitor (mine is F8) (depends on the design of the laptop, could be F7 as well, normally will have an icon there with 2 monitors , between F1 - F12) .......1st choce will be just disply on the laptop itself , 2nd choice while you press both button together again, will be mirroring the display to both laptop LCD + external monitor, 3rd choice will be only display on external monitor ....... use the 3rd choise, so that it won't get limited by the screen redolution of the laptop LCD .....

Author

Commented:
One is going in as DVI, the other into VGA.
the VGA monitor is having the issue.
IT Manager
Distinguished Expert 2019
Commented:
What is the specification of your Dell Latitude D430?
If your Dell D430 has only Intel Integrated UMA Graphics, you can only use either one of the VGA or DVI port at the resolution of 1680 x 1050, not both at that resolution.
The D-Family docking station can only provide dual display to D-series Dell notebook which has dedicated graphic memory.
SteveArchitect/Designer
Commented:
@garryshape

Not going to happen I'm afraid. The graphics card cannot handle two monitors in that res. you need a seperate graphcis adaptor to handle the 2nd screen.

Author

Commented:
The docking station has a vga port and dvi.
Are they not intended to be used for dual extended monitor mode?
No splitter is being used.
Not sure what the best solution would be then other than a usb to vga adapter that supports higher resolutions...
Jackie Man IT Manager
Distinguished Expert 2019
Commented:
The docking station has a vga port and dvi.
Are they not intended to be used for dual extended monitor mode? YES, provided that the graphic card of your Dell notebook can handle that.

Author

Commented:
Well, I guess the graphic card does handle it, but just won't support anything higher than 800 x 600 on the vga monitor.

The driver software for the laptop's video card (only one available based on service tag) has dual monitor settings in side and is setup for extended desktop.
SteveArchitect/Designer
Commented:
@Garryshape,

The dual coonnectors are intended to allow for one monitor but gives you two options of how to connect it. Most systems with this faciity will allow you to plug a screen into each but are limited.
Each screen takes up space in the graphics memory, which your graphics card probably gets by stealing some of the normal memory (shared memory.
When you try to run two screens at such a high resolution the graphics card simply cannot cope. Either turn the resolution down on both monitors or by a screen adaptor (USB ones are not expensive)

This graphics card was not intended for high end graphics use.
Jackie Man IT Manager
Distinguished Expert 2019

Commented:
Agreed.

Have a look of the link below for a similar situation likes yours.

http://en.community.dell.com/support-forums/laptop/f/3519/t/18120304.aspx

It seems that the output resolution from the VGA port of the docking station has limitations inherited from the Intel®  Graphics Media Accelerator 950 card of your Dell D430 notebook.