Japanese keyboard layout is incorrct in the case of upgrading 7.10 to 8.04

Results of commands shown in error message.

Results on a PC upgraded 7.10 to 8.04 as follows:
$ xprop -root | grep XKB
_XKB_RULES_NAMES_BACKUP(STRING) = "xorg", "jp106", "jp,jp", "latin,","grp:alt_shift_toggle,grp_led:scroll"
_XKB_RULES_NAMES(STRING) = "xorg", "jp106", "jp,jp", "latin,","grp:alt_shift_toggle,grp_led:scroll"

$ gconftool-2 -R /desktop/gnome/peripherals/keyboard/kbd
 layouts = []
 model =
 overrideSettings = true
 options = []

Results on a PC clean installed 8.04 as follows:
$ xprop -root | grep XKB
_XKB_RULES_NAMES_BACKUP(STRING) = "xorg", "jp106", "jp,jp", "106,","grp:alt_shift_toggle,grp_led:scroll"
_XKB_RULES_NAMES(STRING) = "xorg", "jp106", "jp,jp", "106,","grp:alt_shift_toggle,grp_led:scroll"

$ gconftool-2 -R /desktop/gnome/peripherals/keyboard/kbd
 layouts = []
 model =
 overrideSettings = true
 options = []

diff of xorg.conf as follows:

$ diff -ru xorg.conf.error xorg.conf.good
--- xorg.conf.error 2008-04-15 18:03:51.000000000 +0900
+++ xorg.conf.good 2008-04-15 18:03:39.000000000 +0900
@@ -20,7 +20,7 @@
        Option "XkbRules" "xorg"
        Option "XkbModel" "jp106"
        Option "XkbLayout" "jp,jp"
- Option "XkbVariant" "latin,"
+ Option "XkbVariant" "106,"
        Option "XkbOptions" "grp:alt_shift_toggle,grp_led:scroll"
 EndSection

This problem seem to be caused that new xorg doesn't support Option "XkbVariant" "latin," for Japanese 106 keyboards, but the upgrade program doesn't rewrite xorg.conf to change "latin," to "106,".

Possible two solutions:
a) xkeyboard-config supports Option "XkbVariant" "latin,".
b) upgrade program changes "latin," to "106," in the case of Japanese Keyboard

a) is better solution than b). This is because there are many xorg.conf examples for Japanese users on many web site including Option "XkbVariant" "latin,".
If xkeyboard-config remain the current configuration for JP keybaords, many Japanese users will be puzzled.

I'm attaching updated /usr/share/X11/xkb/symbols/jp file which supports "latin,".
I hope this file included in new xkeyboard-config package if OK.

Repeat of this bug. Please fix it.

Same problem on a friend's box. I second Jun that solution a) would be better. Is solution b) even feasible after the upgrade to Hardy?

Hi jkbys,

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering is this still an issue for you? Can you try with the latest development release of Ubuntu? (ISOs are available from cdimage.ubuntu.com)

If it remains an issue, could you also attach a new /var/log/Xorg.0.log?
Thanks in advance.

The output of lspci -vvnn would also be worth having.