** Description changed: - Steps to reproduce: + [Impact] + Qt applications incorrectly interpret keyboard input when running over some VNC clients such as TightVNC. + + [Test Case] 1. Have Ubuntu 18.04 LTS installed with VNC server 2. Connect to Ubuntu 18.04 LTS from other machine with VNC client 3. Launch any Qt5 based application such as `assistant`, `kate` or `retext` 4. Press keyboard combination on VNC client Expected results: all keypresses are recognized successfully Actual results: * <Shift> produces `1` * <Alt> produces `5` * <`> produces `p` * <Delete> and <Backspace> are not working * all letters are messed + [Proposed Fix] + The proposed fix is a backport of two upstream commits: the second being the actual fix, the first one is some refactoring of the code to make it easier to write the second. The commits are: + - https://code.qt.io/cgit/qt/qtbase.git/commit/?id=f8b164e1c37ca901 + - https://code.qt.io/cgit/qt/qtbase.git/commit/?id=3edcd9420e3ad661 + + [Regression Potential] + Most of the new code is triggered only when the keymap is missing rules, models, or layout (i.e. rmlvo_is_incomplete == true). This minimizes the risk of regressions when working with simple X11 server. In any case, the potential regressions will be related to input handling. + + [Other Info] Note: only Qt applications are affected, the GTK-based work as expected (including Chromium from which I write this bug-report) ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: qt5-assistant 5.9.5-0ubuntu1 Uname: Linux 4.4.78-perf+ aarch64 NonfreeKernelModules: wlan exfat ApportVersion: 2.20.9-0ubuntu7 Architecture: armhf CurrentDesktop: MATE Date: Tue Jun 4 00:46:55 2019 ProcEnviron: - TERM=xterm - PATH=(custom, no user) - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash SourcePackage: qttools-opensource-src UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1831505 Title: Qt5 incorrectly interpret keypresses from remote VNC keyboard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1831505/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
