xfwm4 question regarding window position

[Olivier Fourdan]

On Wed, Sep 15, 2010 at 5:36 AM, Victor Leschuk <vleschuk at gmail.com> wrote:
> Hello,
>
> I found a strange behavior of xfwm4 after reconfiguring display. The
> situation is the following:
>
> 1) Open any (gtk, or qt) window. For example a Terminal instance.
> 2) Make sure it is not maximized and move it to right side of the
> screen.
> 3) Reconfigure display output. There are several situation when the
> problem appears: waking up after opening laptop lid, returning from a
> full-screen application, etc. The easiest way to reproduce is running
> the following script:
>
> $ cat screen_test.sh
> #!/bin/bash
> xrandr --output LVDS1 --off
> xrandr --output LVDS1 --auto
>
> 4) The window will move from right side of the screen to the left.
>
> I thought this maybe a problem in X itself however with different
> window manager (fluxbox) the problem doesn't appear. Enabling/disabling
> compositing doesn't affect problem.
>
> Here are some details about my system:
>
> [del at del-arch ~]$ pacman -Qi xfwm4|grep Version
> Version        : 4.6.2-1
> [del at del-arch ~]$ uname -rm
> 2.6.35-ARCH x86_64
> [del at del-arch ~]$ lspci|grep -i vga
> 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series
> Chipset Integrated Graphics Controller (rev 07) [del at del-arch ~]$ lspci
> -vnn|grep -i vga 00:02.0 VGA compatible controller [0300]: Intel
> Corporation Mobile 4 Series Chipset Integrated Graphics Controller
> [8086:2a42] (rev 07) (prog-if 00 [VGA controller]) [del at del-arch ~]$
> pacman -Qi xfwm4|grep Version Version        : 4.6.2-1 [del at del-arch
> ~]$ uname -rm 2.6.35-ARCH x86_64
> [del at del-arch ~]$ lspci -vnn|grep -i vga
> 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4
> Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
> (prog-if 00 [VGA controller])
> [del at del-arch ~]$ X -version
> X.Org X Server 1.8.1.902 (1.8.2 RC 2)
>
> I will check if the situation can be reproduced at my work machine
> where I am running Fedora 13 and xfwm4-4.6.2-1.fc13.x86_64 with nvidia
> card and proprietary driver.
>
> But any advice of how this can be localized and investigated in order to
> place a correct bug report (maybe this is not even a bug) is highly
>  appreciated.

On screen resize,xfwm4 make sure all windows remain visible (otherwise
some might end up off screen), that's on purpose.

Cheers,
Olivier