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IBM ThinkPad A31 Introduction Manual

Intervideo windvd incompatibility issue with intel cpu’s.
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InterVideo® WinDVD™ Incompatibility Issue with Intel® CPU's
September 20, 2002, document version 1.2
Introduction
InterVideo® WinDVD™ is the preferred DVD movie player for use on the IBM ThinkPad. Due to an
incompatibility issue with the previous release of the InterVideo WinDVD application and Intel's latest
CPU revision, some users may find that the WinDVD application is unable to play DVD mo vies, and may
cause a system crash when they attempt to play a movie.
InterVideo has designed the WinDVD application to be portable and useable by many different system
manufacturers. The cause of this failure is due to a legacy CPU detection method in the WinDVD player
which will cause the DVD player to incorrectly identify the Intel® CPU as an AMD® CPU. This failure is
only exposed on the latest revision of Intel CPU's.
Beginning 4Q 2002 Intel will begin shipping new revisions of the Mobile Intel® Pentium® 4 Processor-
M and the Mobile Intel® Celeron® Processor. The revision changes have been designed to have no
impact to end-users. However, a legacy CPU detection scheme utilized in previous release of the
InterVideo WinDVD player will incorrectly identify the new revision of the Intel CPU as an AMD
processor. This incorrect detection will cause a general protection fault when the WinDVD application is
used.
This document describes the failure condition, ThinkPad systems affected by the change, and the impact of
the failing scenario.
Scope
IBM ThinkPad Models Affected
Intel Corporation has released new revisions for the Mobile Intel® Pentium® 4 Processor-M and the
Mobile Intel® Celeron® Processor. Pentium 4 Processor-M revisions are affected on the 1.6GHz,
1.7GHz, 1.8GHz, 1.9GHz, and 2.0GHz speeds. Intel Celeron Processor revisions are affected on the
1.4GHz and 1.5GHz speeds. These processors will be shifted from the current step level of B0 to the new
step level of C1.
The CPU revision changes will be rolled into the following ThinkPad systems starting October, 2002:
A-series: A31 systems with model number: 2652-xxx, 2653-xxx, 2654-xxx
R-series: R32 systems with model number: 2658-xxx, 2659-xxx, 2677-xxx
T-series: T30 systems with model number: 2366-xxx, 2367-xxx
No other ThinkPad systems are affected by the change.
To determine if you have a C1 revision CPU, you can obtain one of the CPU information utilities available
from www.intel.com.
A Windows based utility is available at:
http://www.intel.com/support/processors/tools/frequencyid/
A DOS based utility is available at:
http://downloadfinder.intel.com/scripts-
df/Detail_Desc.asp?strState=LIVE&ProductID=49&DwnldID=3088
See Appendix A. for installation information concerning the Intel CPU information utilities.

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  • Page 1

    InterVideo® WinDVD™ Incompatibility Issue with Intel® CPU’s September 20, 2002, document version 1.2 Introduction InterVideo® WinDVD™ is the preferred DVD movie player for use on the IBM ThinkPad. Due to an incompatibility issue with the previous release of the InterVideo WinDVD application and Intel’s latest CPU revision, some users may find that the WinDVD application is unable to play DVD mo vies, and may cause a system crash when they attempt to play a movie.

  • Page 2

    Detailed Failure Description InterVideo WinDVD has been designed to take advantage of the hardware acceleration capabilities in both the Intel Pentium processor and the AMD processor family. Both the Intel and the AMD processors use unique instruction sets for hardware acceleration. Each application that wishes to take advantage of these features must detect the CPU’s manufacturer and capabilities to properly utilize the acceleration tools provided.

  • Page 3

    Solutions Description The C1 step has not been shown to cause any other erroneous behavior aside from the InterVideo failure noted above. The failure is caused by a legacy CPU detection algorithm in older versions of the InterVideo application. For a user who has a system already loaded with InterVideo 3.2-41.142 or earlier, an upgrade patch version is available at: http://www.pc.ibm.com/qtechinfo/MIGR-44474.html.

  • Page 4

    Appendix A. – Installing the Intel CPU information utilities Installing the Windows based utility To determine what revision Intel CPU is currently installed, refer to the following process: 1) Download the FrequencyID utility from: http://www.intel.com/support/processors/tools/frequencyid/ 2) Launch the downloaded installation file, fidenu21.exe 3) Click “Next”...

  • Page 5

    10) After you see the above screen, click on the “CPUID Data” tab to view the CPU information. You will see a screen similar to: 11) From this screen you can determine your processor stepping information. If you have one of the affected model types listed above, you can identify your CPU by referring to the CPU Model and CPU Stepping values.

  • Page 6

    Installing the DOS based utility To determine what revision Intel CPU is currently installed using only a DOS boot diskette, refer to the following process: 1) Download the DOS utility from the following location: http://downloadfinder.intel.com/scripts- df/Detail_Desc.asp?strState=LIVE&ProductID=49&DwnldID=3088 2) Save the self-extracting zip file bfid_e16.exe from the above link to a temp directory on your hard drive.

  • Page 7

    3) You can determine the version from the following screen: 4) The numbers displayed after the text WinDVD version represents the major version. In the above graphic, this is version 3.2. The numbers displayed below the Copyright notice represent the minor version.

  • Page 8

    New components: The following list details preload components which were not included in the previous version of the preload, but have been added to the most recent version. Note: Optional components infer that this component is not a mandatory update to continue proper functionality of the system.

  • Page 9

    A31 – Preload updates The following list details the changes that will be introduced on ThinkPad A31 model(s) 2652, 2653, 2654 shipping after September, 2002. Updated drivers: All drivers have been updated to the latest level available on the web. Drivers can be downloaded from the following location: http://www.pc.ibm.com/qtechinfo/TPAD-MATRIX.html...

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