Article ID: 815794
Article Last Modified on 5/27/2005
APPLIES TO
- Microsoft Windows CE .NET 4.2
SYMPTOMS
When you play high bit rate files, video playback may skip frames.
CAUSE
This behavior occurs because Windows Media Player for Windows CE did not take advantage of all optimizations for some Peripheral Component Interconnect (PCI) hardware.
RESOLUTION
Hotfix Information
A supported software update is now available from Microsoft as Windows CE 4.20 Core OS QFE 030805_KB815794. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:
837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products
Hotfix Replacement Information
This hotfix does not replace any other hotfixes.
File Information
The English version of this package has the file attributes (or later) that are listed in the following table.
Date Time Version Size File name ------------------------------------------------------------------------------------ Path: 030805_kb815794\Signed 05-Aug-2003 21:52 4.2.3.805 5,106,280 Wincepb42-030805-kb815794-armv4.exe 05-Aug-2003 21:52 4.2.3.805 5,110,376 Wincepb42-030805-kb815794-armv4i.exe 05-Aug-2003 21:52 4.2.3.805 5,237,352 Wincepb42-030805-kb815794-mipsii.exe 05-Aug-2003 21:53 4.2.3.805 5,364,328 Wincepb42-030805-kb815794-mipsii_fp.exe 05-Aug-2003 21:53 4.2.3.805 5,311,080 Wincepb42-030805-kb815794-mipsiv.exe 05-Aug-2003 21:53 4.2.3.805 5,446,248 Wincepb42-030805-kb815794-mipsiv_fp.exe 05-Aug-2003 21:52 4.2.3.805 4,778,600 Wincepb42-030805-kb815794-sh3.exe 05-Aug-2003 21:52 4.2.3.805 4,799,080 Wincepb42-030805-kb815794-sh4.exe 05-Aug-2003 21:52 4.2.3.805 4,856,424 Wincepb42-030805-kb815794-x86.exe
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Date Time Size File name --------------------------------------------------------------------------------------- Path: 030805_kb815794 05-Aug-2003 19:31 10,606 Wince .net 4.2_qfe_readme_kb815794.htm Path: 030805_kb815794\Private\Winceos\Coreos\Nk\Inc 24-Jul-2003 19:39 58,639 Kernel.h 24-Jul-2003 19:39 18,560 Kwin32.h 24-Jul-2003 19:39 5,395 Mem_x86.h 24-Jul-2003 19:39 16,186 Nkx86.h Path: 030805_kb815794\Private\Winceos\Coreos\Nk\Kernel 24-Jul-2003 19:39 12,718 Kdriver.c 24-Jul-2003 19:39 45,910 Kwin32.c 24-Jul-2003 19:39 99,228 Virtmem.c Path: 030805_kb815794\Private\Winceos\Coreos\Nk\Kernel\X86 24-Jul-2003 19:39 67,916 Fault.c Path: 030805_kb815794\Public\Common\Oak\Lib\Armv4\Debug 24-Jul-2003 18:10 745,030 Ddi_ati_lib.lib 24-Jul-2003 18:10 964,274 Ddi_mq200_lib.lib 24-Jul-2003 18:11 1,254,568 Ddi_perm3_lib.lib 24-Jul-2003 18:11 1,035,154 Ddi_tvia5_lib.lib 25-Jul-2003 18:53 1,900,986 Nkmain.lib 25-Jul-2003 18:53 2,026,740 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Armv4\Retail 24-Jul-2003 18:04 578,664 Ddi_ati_lib.lib 24-Jul-2003 18:04 749,310 Ddi_mq200_lib.lib 24-Jul-2003 18:05 911,242 Ddi_perm3_lib.lib 24-Jul-2003 18:05 778,124 Ddi_tvia5_lib.lib 25-Jul-2003 18:52 1,201,184 Nkmain.lib 25-Jul-2003 18:52 1,303,922 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Armv4i\Debug 24-Jul-2003 18:22 746,176 Ddi_ati_lib.lib 24-Jul-2003 18:22 965,468 Ddi_mq200_lib.lib 24-Jul-2003 18:22 1,255,892 Ddi_perm3_lib.lib 24-Jul-2003 18:23 1,036,694 Ddi_tvia5_lib.lib 25-Jul-2003 18:54 1,905,214 Nkmain.lib 25-Jul-2003 18:54 2,031,218 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Armv4i\Retail 24-Jul-2003 18:16 579,254 Ddi_ati_lib.lib 24-Jul-2003 18:16 750,102 Ddi_mq200_lib.lib 24-Jul-2003 18:17 912,196 Ddi_perm3_lib.lib 24-Jul-2003 18:17 779,498 Ddi_tvia5_lib.lib 25-Jul-2003 18:53 1,203,804 Nkmain.lib 25-Jul-2003 18:53 1,307,060 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Mipsii\Debug 24-Jul-2003 18:34 758,116 Ddi_ati_lib.lib 24-Jul-2003 18:34 978,978 Ddi_mq200_lib.lib 24-Jul-2003 18:34 1,264,634 Ddi_perm3_lib.lib 24-Jul-2003 18:34 1,066,788 Ddi_tvia5_lib.lib 25-Jul-2003 18:55 1,941,006 Nkmain.lib 25-Jul-2003 18:55 2,078,856 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Mipsii\Retail 24-Jul-2003 18:28 567,444 Ddi_ati_lib.lib 24-Jul-2003 18:28 740,882 Ddi_mq200_lib.lib 24-Jul-2003 18:28 910,614 Ddi_perm3_lib.lib 24-Jul-2003 18:29 779,908 Ddi_tvia5_lib.lib 25-Jul-2003 18:54 1,235,862 Nkmain.lib 25-Jul-2003 18:54 1,350,542 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Mipsii_fp\Debug 24-Jul-2003 18:46 760,790 Ddi_ati_lib.lib 24-Jul-2003 18:46 984,504 Ddi_mq200_lib.lib 24-Jul-2003 18:46 1,268,674 Ddi_perm3_lib.lib 24-Jul-2003 18:46 1,067,004 Ddi_tvia5_lib.lib 25-Jul-2003 18:56 2,008,902 Nkmain.lib 25-Jul-2003 18:56 2,146,778 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Mipsii_fp\Retail 24-Jul-2003 18:40 567,130 Ddi_ati_lib.lib 24-Jul-2003 18:40 745,294 Ddi_mq200_lib.lib 24-Jul-2003 18:40 911,564 Ddi_perm3_lib.lib 24-Jul-2003 18:40 780,114 Ddi_tvia5_lib.lib 25-Jul-2003 18:55 1,296,258 Nkmain.lib 25-Jul-2003 18:56 1,411,044 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Mipsiv\Debug 24-Jul-2003 18:58 767,030 Ddi_ati_lib.lib 24-Jul-2003 18:58 987,204 Ddi_mq200_lib.lib 24-Jul-2003 18:58 1,289,690 Ddi_perm3_lib.lib 24-Jul-2003 18:58 1,071,834 Ddi_tvia5_lib.lib 25-Jul-2003 18:57 1,967,482 Nkmain.lib 25-Jul-2003 18:57 2,106,782 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Mipsiv\Retail 24-Jul-2003 18:52 572,558 Ddi_ati_lib.lib 24-Jul-2003 18:52 747,492 Ddi_mq200_lib.lib 24-Jul-2003 18:52 923,714 Ddi_perm3_lib.lib 24-Jul-2003 18:52 783,098 Ddi_tvia5_lib.lib 25-Jul-2003 18:56 1,251,834 Nkmain.lib 25-Jul-2003 18:57 1,367,730 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Mipsiv_fp\Debug 24-Jul-2003 19:10 766,736 Ddi_ati_lib.lib 24-Jul-2003 19:10 989,796 Ddi_mq200_lib.lib 24-Jul-2003 19:10 1,287,550 Ddi_perm3_lib.lib 24-Jul-2003 19:10 1,072,050 Ddi_tvia5_lib.lib 25-Jul-2003 18:58 2,040,250 Nkmain.lib 25-Jul-2003 18:58 2,179,570 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Mipsiv_fp\Retail 24-Jul-2003 19:04 569,144 Ddi_ati_lib.lib 24-Jul-2003 19:04 749,418 Ddi_mq200_lib.lib 24-Jul-2003 19:04 920,290 Ddi_perm3_lib.lib 24-Jul-2003 19:04 783,304 Ddi_tvia5_lib.lib 25-Jul-2003 18:58 1,317,254 Nkmain.lib 25-Jul-2003 18:58 1,433,258 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Sh3\Debug 24-Jul-2003 19:22 711,518 Ddi_ati_lib.lib 24-Jul-2003 19:22 891,070 Ddi_mq200_lib.lib 24-Jul-2003 19:22 1,154,206 Ddi_perm3_lib.lib 24-Jul-2003 19:22 974,298 Ddi_tvia5_lib.lib 25-Jul-2003 18:59 1,574,532 Nkmain.lib 25-Jul-2003 18:59 1,685,810 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Sh3\Retail 24-Jul-2003 19:16 550,012 Ddi_ati_lib.lib 24-Jul-2003 19:16 697,386 Ddi_mq200_lib.lib 24-Jul-2003 19:16 852,232 Ddi_perm3_lib.lib 24-Jul-2003 19:16 716,896 Ddi_tvia5_lib.lib 25-Jul-2003 18:59 1,051,536 Nkmain.lib 25-Jul-2003 18:59 1,151,858 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Sh4\Debug 24-Jul-2003 19:33 709,506 Ddi_ati_lib.lib 24-Jul-2003 19:34 889,400 Ddi_mq200_lib.lib 24-Jul-2003 19:34 1,151,072 Ddi_perm3_lib.lib 24-Jul-2003 19:34 974,298 Ddi_tvia5_lib.lib 25-Jul-2003 19:00 1,594,990 Nkmain.lib 25-Jul-2003 19:00 1,706,346 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\Sh4\Retail 24-Jul-2003 19:27 547,156 Ddi_ati_lib.lib 24-Jul-2003 19:28 694,516 Ddi_mq200_lib.lib 24-Jul-2003 19:28 846,718 Ddi_perm3_lib.lib 24-Jul-2003 19:28 716,310 Ddi_tvia5_lib.lib 25-Jul-2003 19:00 1,070,200 Nkmain.lib 25-Jul-2003 19:00 1,170,508 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\X86\Debug 24-Jul-2003 17:58 679,816 Ddi_ati_lib.lib 24-Jul-2003 17:59 515,094 Ddi_flat_lib.lib 24-Jul-2003 17:59 867,102 Ddi_mq200_lib.lib 24-Jul-2003 17:59 1,127,078 Ddi_perm3_lib.lib 24-Jul-2003 17:59 75,518 Ddi_rflat_lib.lib 24-Jul-2003 17:59 928,690 Ddi_tvia5_lib.lib 25-Jul-2003 18:34 208,902 I486oal.lib 25-Jul-2003 18:52 1,576,138 Nkmain.lib 25-Jul-2003 18:52 1,688,026 Nkprmain.lib Path: 030805_kb815794\Public\Common\Oak\Lib\X86\Retail 24-Jul-2003 17:52 532,372 Ddi_ati_lib.lib 24-Jul-2003 17:53 395,850 Ddi_flat_lib.lib 24-Jul-2003 17:52 681,920 Ddi_mq200_lib.lib 24-Jul-2003 17:53 824,578 Ddi_perm3_lib.lib 24-Jul-2003 17:53 52,912 Ddi_rflat_lib.lib 24-Jul-2003 17:53 702,346 Ddi_tvia5_lib.lib 25-Jul-2003 18:34 155,878 I486oal.lib 25-Jul-2003 18:51 1,006,148 Nkmain.lib 25-Jul-2003 18:51 1,099,314 Nkprmain.lib Path: 030805_kb815794\Pubsrc\Common\Oak\Csp\I486\Inc 24-Jul-2003 16:22 6,739 Msr.h Path: 030805_kb815794\Pubsrc\Common\Oak\Csp\I486\Oal 24-Jul-2003 19:39 31,085 Cfwpc.c 24-Jul-2003 16:22 10,264 Oeminit.asm Path: 030805_kb815794\Pubsrc\Common\Oak\Drivers\Display\Ati 24-Jul-2003 19:39 29,064 Ati.cpp Path: 030805_kb815794\Pubsrc\Common\Oak\Drivers\Display\Mq200 24-Jul-2003 19:39 53,372 Config.cpp Path: 030805_kb815794\Pubsrc\Common\Oak\Drivers\Display\Perm3 24-Jul-2003 19:39 24,483 Memory.c Path: 030805_kb815794\Pubsrc\Common\Oak\Drivers\Display\Rflat 24-Jul-2003 19:39 24,694 Rflat.cpp Path: 030805_kb815794\Pubsrc\Common\Oak\Drivers\Display\Tvia5000 24-Jul-2003 19:39 24,772 Config.cpp Path: 030805_kb815794\Pubsrc\Common\Oak\Drivers\Display\Vgaflat 24-Jul-2003 19:39 25,079 Gpeflat.cpp Path: 030805_kb815794\Pubsrc\Common\Oak\Inc 24-Jul-2003 19:39 45,432 Pkfuncs.h Path: 030805_kb815794\Pubsrc\Common\Sdk\Inc 24-Jul-2003 19:39 253,255 Winnt.h
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
MORE INFORMATION
Note the following about this fix:
- This fix improves video performance by adding PCI host controller write-combine support by means of the Memory Type Range Register (MTRR) and the page attribute table (PAT).
- This fix requires changes in platform-specific initialization source code.
- OEMs must do the following:
- Review the changes in the source files that are listed earlier in this article.
- Integrate changes in their current platform code to take advantage of this fix.
Keywords: kbbug kbfix kbqfe KB815794
