From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux ppc; en-US; rv:1.7.5)
Gecko/20041220 Fedora/1.7.5-2

Description of problem:
Apple iBook laptop keyboards do not have an "Insert" key.  These
modifications
to some of the xkb configuration files will cause the Mod4+Backspace
combination
to produce a clean "Insert".  This can then be used in text editors
and word
processors for toggling insert/overtype mode.

This modification should go completely unnoticed by people who do have an
"Insert" key. I tested it on a computer with an "Insert" key (a
regular IBM PC
compatible) and it didn't affect it at all. "Mod4+Insert" results in
just that,
and "Mod4+Backspace" results in "Insert".

I suppose the only side effect is that the user cannot assign
"Mod4+Backspace"
to anything in, say, the "Keyboard Shortcuts" applet, because trying
to do so
would cause "Insert" to be bound to something, and not "Mod4+Backspace".

diff -r -u xkb.orig/symbols/pc/pc xkb/symbols/pc/pc
--- xkb.orig/symbols/pc/pc      2004-12-18 07:19:58.000000000 -0700
+++ xkb/symbols/pc/pc   2005-01-09 14:26:36.000000000 -0700
@@ -24,7 +24,8 @@

     key <BKSP> {
         type="CTRL+ALT",
-        symbols[Group1]= [ BackSpace,   Terminate_Server ]
+        symbols[Group1]= [ BackSpace,   Terminate_Server, Insert ],
+        actions[Group1]= [
Noaction(),NoAction(),Redirect(key=<INS>,clearmods=Mod4)]
     };

     key  <TAB> {       [       Tab,    ISO_Left_Tab    ]       };
diff -r -u xkb.orig/types/pc xkb/types/pc
--- xkb.orig/types/pc   2004-12-18 07:19:58.000000000 -0700
+++ xkb/types/pc        2005-01-09 14:23:21.000000000 -0700
@@ -6,7 +6,7 @@
     // Some types that are necessary
     // for a full implementation of
     // a PC compatible keyboard.
-    virtual_modifiers Alt;
+    virtual_modifiers Alt,Mod4;

     type "PC_BREAK" {
        modifiers = Control;
@@ -25,9 +25,11 @@
     };

     type "CTRL+ALT" {
-       modifiers = Control+Alt;
+       modifiers = Control+Alt+Mod4;
        map[Control+Alt] = Level2;
+        map[Mod4] = Level3;
        level_name[Level1] = "Base";
        level_name[Level2] = "Ctrl+Alt";
+       level_name[Level3] = "Mod4";
     };
 };


Version-Release number of selected component (if applicable):
xorg-x11-6.8.1.901-1

How reproducible:
Always

Steps to Reproduce:
1. Buy an Apple iBook
2. Open the lid.
3. Look for the "Insert" key.

Actual Results:  You will find no "Insert" key.

Expected Results:  What kind of a self-respecting laptop doesn't have
an "Insert" key ... *shake head* ...

Additional info:

None.