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zhaose

Member

Registered: 2022-05-05

Posts: 11

Ways to set different environment variables for Xwayland under Wayland

Under wayland, GTK4 has some problems with the ibus input window position with GTK_IM_MOUDLE=ibus, which can be fixed by setting GTK_IM_MOUDLE=wayland, but this will make those applications running on Xwayland unable to launch, such as discord and other electron applications. So I am wondering are there some methods to set GTK_IM_MOUDLE=ibus only for those applications using Xwayland while GTK_IM_MOUDLE=wayland is set globally?

Last edited by zhaose (2023-05-07 06:49:15)

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,256

Re: Ways to set different environment variables for Xwayland under Wayland

Maybe.

XWayland is started via a compositor, so you should check the documentation for your chosen compositor for XWayland compatibility and instructions on how to start XWayland.

Which wayland compositor are you using ?

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Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,491

Website

Re: Ways to set different environment variables for Xwayland under Wayland

These are variables used by the clients, right?  So just set it in their environment, e.g.

GTK_IM_MOUDLE=ibus discord

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

zhaose

Member

Registered: 2022-05-05

Posts: 11

Re: Ways to set different environment variables for Xwayland under Wayland

These are variables used by the clients, right?  So just set it in their environment, e.g.

GTK_IM_MOUDLE=ibus discord

Yeah that's a solution, but I am just wondering if there is a way to set variables for all xwayland applications rather than set it manually for each application.

zhaose

Member

Registered: 2022-05-05

Posts: 11

Re: Ways to set different environment variables for Xwayland under Wayland

Maybe.

XWayland is started via a compositor, so you should check the documentation for your chosen compositor for XWayland compatibility and instructions on how to start XWayland.

Which wayland compositor are you using ?

Mutter is the compositor for gnome.

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,491

Website

Re: Ways to set different environment variables for Xwayland under Wayland

No.  They don't share an environment.

GTK may have some trick for conditionally setting the IM_MODULE, but environment variables are set within an environment - hence the name.

But if you know which progams need this setting, what's wrong with setting it for each of them?

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

zhaose

Member

Registered: 2022-05-05

Posts: 11

Re: Ways to set different environment variables for Xwayland under Wayland

No.  They don't share an environment.

GTK may have some trick for conditionally setting the IM_MODULE, but environment variables are set within an environment - hence the name.

But if you know which progams need this setting, what's wrong with setting it for each of them?

I thought when setting a environment for a process, it will be inheritted by its child processes, so...

But it seems that xwayland is not acting as a parent on starting applications but acting just as a server to interact with the screen, I am now awared of that it's kind of impossible.