From f821b2833dd2a2cefa77c4d07ebd5c9b8dab39da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A9=20van=20Geldorp?= <ge@gse.nl>
Date: Sun, 23 Oct 2005 11:32:52 +0000
Subject: [PATCH] Don't issue KBD_LINE_TEST, the results are unreliable. Fixes
 reopen of #688.

svn path=/trunk/; revision=18699
---
 reactos/drivers/input/i8042prt/i8042prt.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/reactos/drivers/input/i8042prt/i8042prt.c b/reactos/drivers/input/i8042prt/i8042prt.c
index b555ef23fce..30cdbf2c411 100644
--- a/reactos/drivers/input/i8042prt/i8042prt.c
+++ b/reactos/drivers/input/i8042prt/i8042prt.c
@@ -577,12 +577,12 @@ static NTSTATUS STDCALL I8042BasicDetect(PDEVICE_EXTENSION DevExt)
 		return FALSE;
 	}
 
-	if (I8042Write(DevExt, I8042_CTRL_PORT, KBD_LINE_TEST))
-	{
-		Status = I8042ReadDataWait(DevExt, &Value);
-		if (NT_SUCCESS(Status) && Value == 0)
-			DevExt->KeyboardExists = TRUE;
-	}
+	/*
+	 * We used to send a KBD_LINE_TEST command here, but on at least HP
+	 * Pavilion notebooks the response to that command was incorrect.
+	 * So now we just assume that a keyboard is attached.
+	 */
+	DevExt->KeyboardExists = TRUE;
 
 	if (I8042Write(DevExt, I8042_CTRL_PORT, MOUSE_LINE_TEST))
 	{