Knowledge Base

SMS: Poor Mouse Control Using Cirrus-Logic 5436/34 w/ WUSER32

Article ID: 195854

Article Last Modified on 10/27/2006

Microsoft Systems Management Server 1.2 Service Pack 3
Microsoft Systems Management Server 1.2 Service Pack 4

This article was previously published under Q195854

SYMPTOMS

When you attempt to take Remote Control of a Compaq Deskpro 2000 computer with the Cirrus Logic 5436/5434 chipset, you will see mouse hesitations. The severity of this problem increases with the increase in the amount of colors being displayed. For example, the mouse hesitation is a problem with 256 colors, but the mouse is virtually unusable when you are showing 65536 colors. This problem occurs regardless of the driver version loaded on the computer.

CAUSE

Capturing the screen image using BitBlt can take a substantial amount of time, and no mouse movement can be processed while the capture is happening. The jerky mouse movement increases with the screen resolution because Systems Management Server captures a 256 color image of the screen, so screen resolutions other than 256 colors must go through a color translation step that can take a considerable amount of time.

WORKAROUND

To work around this problem, use a faster video card or a faster processor.

STATUS

Microsoft has confirmed this to be a problem in Systems Management Server version 1.2 Service Pack 3 and Service Pack 4.

The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: prodsms sp sp3 sp4 jerkiness

Keywords: kbbug kbfix KB195854