Apparently no bug. After creating a new user, the problem vanished. xkb-data 1.6 and my kxkbrc configuration file conflicted.
Sorry for reporting! -- after update to xkb-data_1.6-1 modifier keys (left and right ALT) dont work in gtk apps anymore https://bugs.launchpad.net/bugs/389836 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xkeyboard-config in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp