I reinstalled ibus, which caused system settings to disappear. While mucking about with that an update was announced, but it did not seem to have anything to do with input bus. I went ahead an applied it. To resolve the system settings issue I reinstalled ubuntu-desktop
$ sudo apt-get install ubuntu-desktop I then rebooted the laptop. Unfortunately this did not end up being a very deterministic approach to troubleshooting this issue. However, after reboot, the keyboard is working correctly again. Teď můžu klavesnici použivat jako dřív. Mňau! Something went wrong during the upgrade, but since 16.04 has been out now a few months, it is probably something peculiar to my system. You might want to close this with no change. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ibus in Ubuntu. https://bugs.launchpad.net/bugs/1615222 Title: [REGRESSION] Unable to use czech diacritics from czech keyboard for two stroke combinations Status in ibus package in Ubuntu: New Bug description: Upgrade REGRESSION $ lsb_release -rd Description: Ubuntu 16.04.1 LTS Release: 16.04 GENERAL DESCRIPTION I just upgraded from 15.10 to 16.04 this morning. Everything seemed fine until I opened some translating work in libreoffice. Trying to type the letter combination n with a háček ˇ + n = ň, for example the word "Mňau", I found that whenever I hit the key with the háček symbol ˇ the háček automatically appears. In the traditional czech keyboard the first stroke of the ˇ should not produce anything until the second keystroke e.g. 'n', which will then produce the correct combination ň. The most common combinations are available through what would be the number keys in an english keyboard, however combinations with some consonants and with capital letters require two strokes. I also checked this in GVIM and the behaviour is the same. The first stroke on the háček ˇ or the čárka ´ (same key but not shifted) immediately produces the character without waiting for the second stroke. I can work around this using spellcheck and replacing and then copying the correct combination where it might be needed. However, this has long been working in earlier Ubuntu installations even across upgrades from 14.10 to 15.04 and from 15.04 to 15.10. WHAT WAS EXPECTED Using the háček or čárka key on the czech keyboard [´|ˇ] the system would wait for a second keystroke to produce the correct diacritic and letter combination, as in the past. WHAT HAPPENED INSTEAD As soon as the háček or čárka key was pressed, the diacritic appeared before the second keystroke. The correct combination cannot be made. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: unity 7.4.0+16.04.20160801.2-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15 Uname: Linux 4.4.0-34-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Sat Aug 20 13:10:06 2016 DistUpgraded: 2016-08-20 11:19:30,354 DEBUG icon theme changed, re-reading DistroCodename: xenial DistroVariant: ubuntu EcryptfsInUse: Yes ExecutablePath: /usr/bin/compiz GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Broadwell-U Integrated Graphics [103c:2249] InstallationDate: Installed on 2015-03-20 (518 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: Hewlett-Packard HP ProBook 470 G2 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-34-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: unity UpgradeStatus: Upgraded to xenial on 2016-08-20 (0 days ago) dmi.bios.date: 11/27/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M73 Ver. 01.00 dmi.board.name: 2249 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 59.19 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM73Ver.01.00:bd11/27/2014:svnHewlett-Packard:pnHPProBook470G2:pvrA3008DD10B03:rvnHewlett-Packard:rn2249:rvrKBCVersion59.19:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ProBook 470 G2 dmi.product.version: A3008DD10B03 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.12.2+16.04.20160801.3-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2.1 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Sat Aug 20 11:20:18 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 8605 vendor AUO xserver.version: 2:1.18.3-1ubuntu2.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ibus/+bug/1615222/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
