The version number of Geany: 1.36 The version number of GTK+ (can be printed with geany -V): 3.24.14

geany 1.36 (compilado el día 2020-03-22 conGTK 3.24.14, GLib 2.64.1)

Your OS details: Ubuntu 20.04

``` $ uname -a Linux leia 5.4.0-42-generic #46-Ubuntu SMP Fri Jul 10 00:24:02 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ```

Seems to be related to #2105

--- **Normal open** Dead keys works in all the system: gedit, firefox, libreoffice and others.

Up to a weeks ago (01/08/20 more or less) Geany was working ok. With no changes on Geany but the normal system updates now Geany behaves in a different way: - Editor: Dead keys makes a blink on the whole window - Draft: Dead keys ok - Terminal: Dead keys ok

**Verbose** In verbose mode (geany -v) I can see this message when I press a dead key on the Editor:

``` Gdk-Message: 18:46:05.005: Window 0x55ba970a1380 is a temporary window without parent, application will not be able to position it on screen. ```

It doesn't matter which dead key, all the time is the same message (timestamp updated).

No message when a dead key is pressed on Draft or Terminal, there just works ok.

**XMODIFIERS** Setting XMODIFIERS to `@im=none` have no difference on the behavior of the dead keys. Again the error message on the Editor and works ok on Draft and Terminal

``` XMODIFIERS="@im=none" geany -v ```

**Force X11** When forced to X11 the Editor comes back to work ok:

``` GDK_BACKEND=x11 geany -v ```

No error messages. The behavior is ok on Editor, Draft and Terminal.

**WORKAROUND** As pointed out on #2105, seems like the workaround is to force X11 on the bashrc file to use Geany normally.

Just add this line to your .bashrc file: ``` export GDK_BACKEND=x11 ```

**To be improved** Maybe the Editor need the same component or behavior like Draft.