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- DOCUMENT:Q106373 10-NOV-1993 [W_NT]
- TITLE :Troubleshooting Event Log Error Messages 11 and 12
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- --------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system version 3.1
- - Microsoft Windows NT Advanced Server version 3.1
- -------------------------------------------------------------------
-
- SYMPTOMS
- ========
-
- When the number of mouse or keyboard events buffered internally by the
- driver in nonpaged pool memory is too low, one of the following error
- messages gets logged in the Event Viewer:
-
- Source Category Event User
- -----------------------------------------
- Mouclass None 11 N/A
-
- -or-
-
- Source Category Event User
- -----------------------------------------
- i8042prt None 12 N/A
-
- Both of the above error messages have the following description:
-
- The ring buffer that stores incoming mouse data has overflowed (buffer
- size is configurable through the Registry).
-
- RESOLUTION
- ==========
-
- WARNING: Using Registry Editor incorrectly can cause
- serious, system-wide problems that may require you to
- reinstall Windows NT to correct them. Microsoft cannot
- guarantee that any problems resulting from the use of
- Registry Editor can be solved. Use this tool at your own
- risk.
-
- Use the Registry Editor (REGEDT32.EXE) to edit the following entry:
-
- HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/i8042prt/Parameters
-
- Make the value for KeyboardDataQueueSize and/or MouseDataQueueSize
- larger.
-
- NOTE: The default value for both of these is 64.
-
- The above service (i8042prt) name may vary, depending the type of
- mouse you are using.
-
- Additional reference words: 3.10
- KBCategory:
- KBSubCategory: hrdwr
-
- =============================================================================
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-
- Copyright Microsoft Corporation 1993.