Hi, 
    Thanks for your reply!
    I add below cmds to test it, but it still have no effect.

    Do you have any other suggestions?


> Date: Tue, 19 Aug 2014 09:11:08 +0200
> From: philippe.co...@open.eurogiciel.org
> To: k870818...@outlook.com; ivi@lists.tizen.org
> Subject: Re: Changes have no effect on Environment variable
> 
> On 08/19/2014 08:59 AM, kongling wrote:
> > Hi,
> >     I want to change "ELM_ENGINE=wayland_egl" to
> > "ELM_ENGINE=wayland_shm". I found it was in "user-session@.service"
> > and modify it.
> >     After rebooting, the environment variable is still
> > "ELM_ENGINE=wayland_egl".
> 
> Hi,
> 
> Best way to manage env variable is doing this in login shells
> but since we're using "systemd --user" as session manager
> (which is not supposed to, there is bug about that)
> in the end /etc/profile* are not sourced ...
> 
> So the solution is the add
>    /bin/sh -l "$cmd"
> in your systemd's services
> some of them are already doing this feel free to get inspiration from them..
> 
> Hope this help
> 
> 
> -- 
>  mailto:philippe.co...@eurogiciel.fr  --  gpg:0x467094BC
>  xmpp:philippe.coval....@gmail.com
>  https://dockr.eurogiciel.fr/blogs/embedded/author/pcl/
>                                                                       .
> 
> 
> 
                                          
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