From ce0cafa1151841b46dedce616472cf5f38ffde83 Mon Sep 17 00:00:00 2001
From: Adam Jackson <ajax@nwnk.net>
Date: Fri, 23 Sep 2005 22:32:23 +0000
Subject: Bug #3913: Suppress kernel-generated repeat events for chording keys.

---
 src/evdev.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/evdev.c b/src/evdev.c
index f1c7cea..aa1eb5d 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -99,6 +99,22 @@ PostButtonClicks(InputInfoPtr pInfo, int button, int count)
     }
 }
 
+static void
+PostKbdEvent(InputInfoPtr pInfo, struct input_event *ev, int value)
+{
+    /* filter repeat events for chording keys */
+    if (value == 2 &&
+        (ev->code == KEY_LEFTCTRL || ev->code == KEY_RIGHTCTRL ||
+         ev->code == KEY_LEFTSHIFT || ev->code == KEY_RIGHTSHIFT ||
+         ev->code == KEY_LEFTALT || ev->code == KEY_RIGHTALT ||
+         ev->code == KEY_LEFTMETA || ev->code == KEY_RIGHTMETA ||
+         ev->code == KEY_CAPSLOCK || ev->code == KEY_NUMLOCK ||
+         ev->code == KEY_SCROLLLOCK)) /* XXX windows keys? */
+        return;
+
+    xf86PostKeyboardEvent(pInfo->dev, ev->code + MIN_KEYCODE, value);
+}
+
 static void
 EvdevReadInput(InputInfoPtr pInfo)
 {
@@ -170,8 +186,7 @@ EvdevReadInput(InputInfoPtr pInfo)
                 break;
 
             default:
-                xf86PostKeyboardEvent(pInfo->dev,
-                                      ev.code + MIN_KEYCODE, value);
+                PostKbdEvent(pInfo, &ev, value);
             }
             break;
 
-- 
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