Some Czech letters cannot be writtent with the Czech keyboard layout anymore

[Pavel Hok]

After upgrading to Xubuntu 15.10 on a lenovo laptop, some Czech letters cannot be written anymore. Letters which still work are those mapped to specific keyboards (replacing numerical keys at the top of the keyboards. Less frequent letters, such as ď, ň and ť (had to copy them from Wikipedia) are usually written by preceding them with the ´ or ˇ sign (located just left of the backspace). Normally, the first keypress won't produce any output on the screen but will modify the following letter, but since the upgrade, pressing the key '=' will type '´' immediately (similarly SHIFT+'=') will type 'ˇ'. The following letter is then not modified. Although these letters are not very frequent in Czech, writing a document or even an e-mail gets really annoying, since these letters have to be copied from somewhere else. Thanks for any help.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-34.39-generic 4.2.8-ckt4
Uname: Linux 4.2.0-34-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Mar 26 19:28:55 2016
InstallationDate: Installed on 2016-02-07 (47 days ago)
InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: xserver-xorg-input-evdev
UpgradeStatus: No upgrade log present (probably fresh install)