RDP on dual monitors - screen update delay

Posted on 2012-03-21
Last Modified: 2012-05-16
We have a Win Server 2008 R2 running a software package with an SQL Backend.

All clients run RDP to the server (terminal services) & they are all running the latest version of RDP.

If the software is used under RDP on systems running Windows XP & dual monitors, the parts list in the software takes minutes to update (and doesn’t display the list until all items have been rendered / updated). If we use it on just a single monitor on the same PC, the software works fine.

However, if the software is run under RDP on any other system, there is now issue & the list populates within 5 seconds. We have used it on WinXP systems with single screens OK, and on a vista PC running dual screens & it runs fine as well.

We have changed colour depth & resolution etc, with no luck. Any help would be appreciated.
Question by:me_likey_sbs
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Expert Comment

ID: 37751062

Please log in with another user profile and try the same and see whether same problem persists.  Because if you say that the Dual Card driver is set correctly and latest version of Driver installed in the machine means it should be a problem with the User profile or may be a admin access issue.

Please check and revert to us.

P. Praveen Raj

Author Comment

ID: 37763707
Hi Raj,

thanks for reply. Yes we have tried different users & the issue remains so it isnt a user issue. What do you mean by "the Dual Card driver is set correctly"?

Expert Comment

ID: 37766374

Once you insert Graphic Card in the Machine you need to install the Graphic Driver which provided by the manufacturer of Graphic Card.  And you have to set the graphic mode to default.

Please let me known what the model of the Graphic Card.

P. Praveen Raj

Accepted Solution

me_likey_sbs earned 0 total points
ID: 37850173

Just to inform, the fix for the above issue was a colour depth setting on the client's desktop.

It was set to 32Bit colour. Even when the RDP session was set to 256 colours, the issue remained. Once we reduced the colour depth on the client desktop, the RDP session ran fine.

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