Bug#533863: xserver-xorg: keyboard layout switching not working properly after hal / evdev upgrade

[Julien Cristau <jcristau@debian.org>]

On Sun, Nov 29, 2009 at 20:49:08 +0100, Julien Cristau wrote:

> With your keymap it seems I can reproduce your bug: switching from il to
> us(dvorak) seems fine, but switching from us(dvorak) to il needs 2
> alt-shift presses.  Not sure what's up.  As a last data point, does this
> also happen if you just run 'startx -- /usr/bin/xterm'?  If so please
> file a bug at bugs.freedesktop.org against the xorg product, component
> Input/XKB.  Attach your X log and the file from xkbcomp.
> 
Hmm.  Actually, running xserver 1.7.0, things seem to work fine if I
switch to your keymap using "setxkbmap us,il -variant dvorak, -option ''
-option grp:alt_shift_toggle,ctrl:swapcaps".

Diffing the xkbcomp output shows this:
[some stuff in the xkb_compatibility section, probably not relevant]

then:
-    key <BKSP> {         [       BackSpace ] };
+    key <BKSP> {
+        type= "CTRL+ALT",
+        symbols[Group1]= [       BackSpace, Terminate_Server ]
+    };
because you have the terminate:ctrl_alt_bksp option enabled, fine.

then it gets weird:
     key <LSGT> {
-        type= "FOUR_LEVEL",
-        symbols[Group1]= [            less,         greater,             bar,       brokenbar ]
+        type[group1]= "FOUR_LEVEL",
+        symbols[Group1]= [            less,         greater,             bar,       brokenbar ],
+        symbols[Group2]= [            less,         greater ],
+        symbols[Group3]= [             bar ]

there's a Group3 symbol here for some reason...

dunno if the following matters:
-    key <RALT> {
-        type= "TWO_LEVEL",
-        symbols[Group1]= [           Alt_R,  ISO_Next_Group ]
-    };
+    key <RALT> {         [           Alt_R,  ISO_Next_Group ] };

[some other irrelevant stuff]

So, that may be a bug in server 1.6, fixed in 1.7.  Hopefully we can get
it in a usable state in experimental soon.  I don't have an 1.6 server
handy to easily confirm.

Cheers,
Julien