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Q169125: SMS: Bitmap Buffering Causes Remote Control Corruption

Article: Q169125
Product(s): Microsoft Systems Management Server
Version(s): winnt:1.1,1.2
Operating System(s): 
Keyword(s): kbnetwork kbtshoot smsremtshoot kbRemoteProg
Last Modified: 31-JUL-2001

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The information in this article applies to:

- Microsoft Systems Management Server versions 1.1, 1.2 
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SYMPTOMS
========

If you use the Remote Control feature to access a client computer running
Windows 95 that is using a video card with Bitmap Buffering, like the Cirrus
Logic 5446 or the Matrox chipset, the Quick Viewer display will become
corrupted. Corruption will include odd colors, screen "droppings," and missing
parts of remote windows.

CAUSE
=====

The display corruption is caused by the Bitmap Buffering feature used by this
graphics adapter and driver. The graphics chipset and driver use features like
this to enhance the graphic performance in special areas. Bitmap Buffering
bypasses the Remote Control Agent, so Remote Control sessions display corrupted
information.

WORKAROUND
==========

To avoid this specific problem, it is necessary to disable the Bitmap Buffering
feature. In general, to ensure that the Remote Control Agent can work as
designed, it is a good idea to switch off any enhanced features like Bitmap
Buffering. Please consult your graphic card's documentation for the necessary
configuration.

STATUS
======

Microsoft has confirmed this to be a problem in Systems Management Server
versions 1.1 and 1.2. We are researching this problem and will post new
information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION
================

For more information on using Systems Management Server's Remote Control feature
with either the Cirrus 5446 or Matrox chipsets, see the following articles in
the Microsoft Knowledge Base:

  Q162409 SMS: Remote Control Windows Corrupted with Cirrus 5446 Chipset

  Q157756 Remote Control Problem with Matrox MGA Millennium PowerDesk

Additional query words: prodsms win95 help desk helpdesk logic cl5446

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Keywords          : kbnetwork kbtshoot smsremtshoot kbRemoteProg 
Technology        : kbSMSSearch kbSMS110 kbSMS120
Version           : winnt:1.1,1.2
Issue type        : kbbug

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