Xephyr (think, Xnest on steroids) from the xorg-server package does not seem to agree with fluxbox - it fails to set its window to the proper size. Given that it works in other window managers, I think this is an issue with fluxbox. Steps to reproduce:
If you need any additional info or traces, I will be happy to provide them.
i can not confirm this behaviour:
have you tried to reproduce this behaviour with a fresh fluxbox-configuration?
i suspect some rule in your .fluxbox/apps to enforce the dimension to 100x100.
I tried it with a fresh config, but no help. xprop reports the sizes correctly, but the window is still small, as shown in the screenshot attached.
in your a.png-screenshot i see a running pager, a keyboard-layout-switcher, battery stats, volume and a theme which does not look like default.
to make the issue reproducible you should really start with an empty fluxbox.
error on my side: xprop is the wrong tool, xwininfo is the more appropriate one:
and here, on my machine, it reports whatever i tell xephyr to use as its dimensions.
Ok, you got me there. :) I had restarted fluxbox and not the entire session.
Here is a new screenshot, this time with a full restart.
As you can see, the issue still remains. And xwininfo reports the size as 100x100.
I am unsure why this does not happen for you. I have tried this with fluxbox 1.3.2 1.3.5 and git. The xorg-server version I used is 1.5.0. I will try it with a newer version later.
and you are sure that the .fluxbox/apps file is empty? what's in your .Xresources file?
I have no .Xresources. My apps file does not contain anything which could relate to Xephyr and the same thing happens with a completely empty file. All attempts of forcing a specific size with the apps file also fail.
Another interesting thing is that when I try to resize the window (alt+right click), the window border drawn by fluxbox is of the correct size (640x480). However, i cannot increase or decrease the size of the window.
this issue looks odd to me. i can not reproduce it.
Not reproducible here either, but it sounds as if the maximum window size hint is set.
@pavelo
Is this still a problem for you?
In case, please attach the full output of "xprop" on the xephyr window.
Hmm... I have tried this out today, and it seems to be working fine. I guess some update of something made the problem go away. I guess we can close that now...
Thank you for the update and confirmation of the status quo.