Regarding Xephyr

[Carsten Haitzler]

On Sat, 1 Jul 2023 13:08:54 +0300 Riza Dindir <riza.dindir at gmail.com> said:

> Hello All,
> 
> I want to use Xephyr to test out an x application.
> 
> For starters I wanted to learn how to use Xephyr. Here is what I did.
> 
> I started xephyr on display 1 like so (Xephyr :1 -screen 800x600). The
> window opened where the background is black. Then ran (DISPLAY=:1
> xsetroot -solid white) to change the background color. But when I set
> the background to white, the background does not stay white. It
> changes to black within 1 second.
> 
> Is this default behavior? Why can't I set the background color on a
> Xephyr window?

because xsetroot is the only x client. it connects, sets root window bg color
to white, then disconnects. now the xserver has zero clients left. it resets
itself as from it's point of view the session ended. you can either ensure
another client is always running (almost all the time this is a window manager
at a minimum) until the session ends, or you can try the -noreset option to
Xephyr

-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
Carsten Haitzler - raster at rasterman.com