need help: about fltk-based wayland app #1023

2moe · 2024-04-23T14:48:50Z

Describe the bug

When I use fcitx5 to enter ASCII (Latin alphabet & space) on a fltk based app, repeated characters appear.

e.g., hello world -> helllloooo wwooorlddd

Screencast_20240423_215021.mp4

After exiting fcitx5, this problem does not occur.

Screencast_20240423_231347.mp4

输入中文时，候选框会不断闪烁。

有时候莫名奇妙就会触发。

在调整 GUI 应用的窗口大小时，触发闪烁 bug 的概率更高。
The probability of reproduction is higher when resizing the window of that GUI application.

Screencast_20240423_214546.mp4

Note：没有设置 GTK_IM_MODULE , SDL_IM_MODULE & QT_IM_MODULE environment variables.

These problems only occur in wayland.

FLTK implements support of IM according to what is explained in that web page:
https://dorotac.eu/posts/input_method/

Hopefully the developers of fcitx5 can provide some help.

System Info:

uname -a:

Linux localhost.localdomain 6.7.9-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.7.9-2 (2024-03-13) x86_64 GNU/Linux

lsb_release -a:

Distributor ID: Debian
Description:    Debian GNU/Linux trixie/sid
Release:        n/a
Codename:       trixie

lsb_release -d:

Description:    Debian GNU/Linux trixie/sid

/etc/lsb-release:

/etc/lsb-release not found.

/etc/os-release:

PRETTY_NAME="Debian GNU/Linux trixie/sid"
NAME="Debian GNU/Linux"
VERSION_CODENAME=trixie
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

Desktop Environment:

Desktop environment is kde.
XDG SESSION TYPE:
```
XDG_SESSION_TYPE='wayland'
```
Bash Version:
```
BASH_VERSION='5.2.21(1)-release'
```

Environment:

DISPLAY:

DISPLAY=':1'


WAYLAND_DISPLAY='wayland-0'

Keyboard Layout:

setxkbmap:

WARNING: Running setxkbmap against an Xwayland server
xkb_keymap {
    xkb_keycodes  { include "evdev+aliases(qwerty)" };
    xkb_types     { include "complete"      };
    xkb_compat    { include "complete"      };
    xkb_symbols   { include "pc+us+inet(evdev)"     };
    xkb_geometry  { include "pc(pc105)"     };
};

xprop:

_XKB_RULES_NAMES(STRING) = "evdev", "pc105", "us", "", ""

Locale:

All locales:
```
C
C.utf8
POSIX
```

Current locale:

LANG=C.UTF-8
LANGUAGE=
LC_CTYPE="C.UTF-8"
LC_NUMERIC="C.UTF-8"
LC_TIME="C.UTF-8"
LC_COLLATE="C.UTF-8"
LC_MONETARY="C.UTF-8"
LC_MESSAGES="C.UTF-8"
LC_PAPER="C.UTF-8"
LC_NAME="C.UTF-8"
LC_ADDRESS="C.UTF-8"
LC_TELEPHONE="C.UTF-8"
LC_MEASUREMENT="C.UTF-8"
LC_IDENTIFICATION="C.UTF-8"
LC_ALL=

Directories:
1. Home:
```
/home/user
```
2. ${XDG_CONFIG_HOME}:
  
  Environment variable XDG_CONFIG_HOME is not set.
  
  Current value of XDG_CONFIG_HOME is ~/.config (/home/user/.config).
3. Fcitx5 Settings Directory:
  
  Current fcitx5 settings directory is ~/.config/fcitx5 (/home/user/.config/fcitx5).
Current user:

The script is run as user (1000).

Fcitx State:

executable:

Found fcitx5 at /usr/bin/fcitx5.
version:

Fcitx version: 5.1.8
process:

Found 2 fcitx5 processes:
```
    796 fcitx5
   1819 fcitx5
```
fcitx5-remote:

fcitx5-remote works properly.

DBus interface:

Using dbus-send to check dbus.

Owner of DBus name org.fcitx.Fcitx5 is :1.8.

PID of DBus name org.fcitx.Fcitx5 owner is 796.

Debug information from dbus:

   Group [wayland:] has 4 InputContext(s)
  IC [e84b945b778c4a09a552e883b487b806] program:org.kde.konsole frontend:wayland cap:72 focus:1
  IC [35a8677a549d41879f8c7638d425340f] program:org.kde.plasmashell frontend:wayland cap:72 focus:0
  IC [0d9c7e3360fd4ed393ac4d64d20d407c] program:editor-demo frontend:wayland cap:72 focus:0
  IC [50a91f603de24ac680ad31ebabadb9c7] program: frontend:wayland cap:72 focus:0
Group [x11::1] has 0 InputContext(s)
Input Context without group

Fcitx Configure UI:

Config Tool Wrapper:

Found fcitx5-configtool at /usr/bin/fcitx5-configtool.
Config GUI for qt:

Found fcitx5-config-qt at /usr/bin/fcitx5-config-qt.
Config GUI for kde:

Frontends setup:

The environment variable checked by this script only shows the environment under current shell. It is still possible that you did not set the environment to the whole graphic desktop session. You may inspect the actual environment variable of a certain process by using xargs -0 -L1 /proc/$PID/environ for a certain process that you find not working.

Xim:

${XMODIFIERS}:

Environment variable XMODIFIERS is set to "@im=fcitx" correctly.
Xim Server Name from Environment variable is fcitx.
XIM_SERVERS on root window:

Xim server name is the same with that set in the environment variable.

Qt:

qt4 - ${QT4_IM_MODULE}:

Please set environment variable QT_IM_MODULE to "fcitx" using the tool your distribution provides or add export QT_IM_MODULE=fcitx to your ~/.xprofile. See Input Method Related Environment Variables: QT_IM_MODULE.

fcitx5-qt4-immodule-probing not found.
qt5 - ${QT_IM_MODULE}:

Please set environment variable QT_IM_MODULE to "fcitx" using the tool your distribution provides or add export QT_IM_MODULE=fcitx to your ~/.xprofile. See Input Method Related Environment Variables: QT_IM_MODULE.

It is OK to use qt5 built-in Wayland im module if your compositor fully supports text-input protocol used by qt5.

Using fcitx5-qt5-immodule-probing to check the actual im module to be used under current environment:
```
QT_QPA_PLATFORM=wayland
QT_IM_MODULE=
IM_MODULE_CLASSNAME=QtWaylandClient::QWaylandInputContext
```
qt6 - ${QT_IM_MODULE}:

Please set environment variable QT_IM_MODULE to "fcitx" using the tool your distribution provides or add export QT_IM_MODULE=fcitx to your ~/.xprofile. See Input Method Related Environment Variables: QT_IM_MODULE.

It is OK to use qt6 built-in Wayland im module if your compositor fully supports text-input protocol used by qt6.

Using fcitx5-qt6-immodule-probing to check the actual im module to be used under current environment:
```
QT_QPA_PLATFORM=wayland
QT_IM_MODULE=
IM_MODULE_CLASSNAME=QtWaylandClient::QWaylandInputContext
```
Qt IM module files:

Found fcitx5 im module for qt5: /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so.
Found fcitx5 im module for qt6: /usr/lib/x86_64-linux-gnu/qt6/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so.
Found fcitx5 qt5 module: /usr/lib/x86_64-linux-gnu/fcitx5/qt5/libfcitx-quickphrase-editor5.so.
Found fcitx5 qt6 module: /usr/lib/x86_64-linux-gnu/fcitx5/qt6/libfcitx-quickphrase-editor5.so.

Following error may not be accurate because guessing Qt version from path depends on how your distribution packages Qt. It is not a critical error if you do not use any Qt application with certain version of Qt or you are using text-input support by Qt under Wayland.
Cannot find fcitx5 input method module for Qt4.

Gtk:

gtk - ${GTK_IM_MODULE}:

Please set environment variable GTK_IM_MODULE to "fcitx" using the tool your distribution provides or add export GTK_IM_MODULE=fcitx to your ~/.xprofile. See Input Method Related Environment Variables: GTK_IM_MODULE.

It is OK to use gtk built-in Wayland im module if your compositor fully supports text-input protocol used by gtk.

fcitx5-gtk2-immodule-probing not found.

Using fcitx5-gtk3-immodule-probing to check the actual im module to be used under current environment:
```
GTK_IM_MODULE=wayland
```
Using fcitx5-gtk4-immodule-probing to check the actual im module to be used under current environment:
```
GTK_IM_MODULE=wayland
```
gtk-query-immodules:
1. gtk 2:
  
  Cannot find gtk-query-immodules for gtk 2
  
  Cannot find fcitx5 im module for gtk 2.
2. gtk 3:
  
  Cannot find gtk-query-immodules for gtk 3
  
  Cannot find fcitx5 im module for gtk 3.

Gtk IM module cache:

gtk 2:

Found immodules cache for gtk 2.24.33 at /usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/immodules.cache.
Version Line:
```
# Created by /usr/lib/x86_64-linux-gnu/libgtk2.0-0t64/gtk-query-immodules-2.0 from gtk+-2.24.33
```
Failed to find fcitx5 in immodule cache at /usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/immodules.cache

Cannot find fcitx5 im module for gtk 2 in cache.

gtk 3:

Found immodules cache for gtk 3.24.41 at /usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/immodules.cache.
Version Line:

# Created by /usr/lib/x86_64-linux-gnu/libgtk-3-0t64/gtk-query-immodules-3.0 from gtk+-3.24.41

Found fcitx5 im modules for gtk 3.24.41.

"/usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/immodules/im-fcitx5.so" 
"fcitx" "Fcitx5 (Flexible Input Method Framework5)" "fcitx5" "/usr/locale" "ja:ko:zh:*" 
"fcitx5" "Fcitx5 (Flexible Input Method Framework5)" "fcitx5" "/usr/locale" "ja:ko:zh:*"

Gtk IM module files:
1. gtk 2:
  
  All found Gtk 2 immodule files exist.
2. gtk 3:
  
  All found Gtk 3 immodule files exist.
3. gtk 4:
  
  All found Gtk 4 immodule files exist.

Configuration:

Fcitx Addons:

Addon Config Dir:

Found fcitx5 addon config directory: /usr/share/fcitx5/addon.

Addon List:

Found 29 enabled addons:

Simplified and Traditional Chinese Translation 5.1.4
Classic User Interface 5.1.8
Clipboard 5.1.8
Cloud Pinyin 5.1.4
DBus 5.1.8
DBus Frontend 5.1.8
Emoji 5.1.8
Fcitx4 Frontend 5.1.8
Full width character 5.1.4
IBus Frontend 5.1.8
Lua IME API 5.0.12
Input method selector 5.1.8
Keyboard 5.1.8
KDE Input Method Panel 5.1.8
Lua Addon Loader 5.0.12
Status Notifier 5.1.8
Notification 5.1.8
Pinyin 5.1.4
Extra Pinyin functionality 5.1.4
Punctuation 5.1.4
Quick Phrase 5.1.8
Spell 5.1.8
Table 5.1.4
Unicode 5.1.8
DBus Virtual Keyboard 5.1.8
Wayland 5.1.8
Wayland Input method frontend 5.1.8
XCB 5.1.8
X Input Method Frontend 5.1.8

Found 0 disabled addons:

Addon Libraries:

All libraries for all addons are found.

User Interface:

Found 3 enabled user interface addons:

Classic User Interface
KDE Input Method Panel
DBus Virtual Keyboard

Input Methods:

/home/user/.config/fcitx5/profile:

[Groups/0]
# Group Name
Name="Default # Layout"
# Layout
Default Layout=us
# Default Input Method
DefaultIM=pinyin

[Groups/0/Items/0]
# Name
Name=keyboard-us
# Layout
Layout=

[Groups/0/Items/1]
# Name
Name=pinyin
# Layout
Layout=

[GroupOrder]
0="Default # Layout"

Log:

date:
```
Tue Apr 23 13:08:09 UTC 2024
```
/home/user/.config/fcitx5/crash.log:

/home/user/.config/fcitx5/crash.log not found.

Warning: the output of fcitx5-diagnose contains sensitive information, including the distribution name, kernel version, name of currently running programs, etc.

The text was updated successfully, but these errors were encountered:

wengxt · 2024-04-23T17:13:45Z

not a bug in fcitx

wengxt closed this as completed Apr 23, 2024

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need help: about fltk-based wayland app #1023

need help: about fltk-based wayland app #1023

2moe commented Apr 23, 2024 •

edited

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wengxt commented Apr 23, 2024

need help: about fltk-based wayland app #1023

need help: about fltk-based wayland app #1023

Comments

2moe commented Apr 23, 2024 • edited Loading

System Info:

Environment:

Fcitx State:

Fcitx Configure UI:

Frontends setup:

Xim:

Qt:

Gtk:

Configuration:

Fcitx Addons:

Input Methods:

Log:

wengxt commented Apr 23, 2024

2moe commented Apr 23, 2024 •

edited

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