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I would like to replace a default xfce windowmanager (xfwm4) with icewm. I have installed the following package using apt: icewm.

In the file: /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-session.xml xfwm4 is replaced with icewm. I have created a file winoptions (touch winoptions) in the directory ~/.icewm. The file contains the following line:

testApp1.SimpleGL.geometry: 500x1000+300+0

where testApp1 is a window class and SimpleGL is a window title. A window manager starts but the config file has no effect when I start a defined window. What might be wrong ?

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UPDATE: I just saw that you try to call icewm from xfce. It's not option, icewm is a full desktop environment itself. Update your ~/.xinitrc with exec icewm-session at last line.

If you use debian based distro, you can symlink icewm-session to /etc/alternatives/x-session-manager via update-alternatives --config x-session-manager.


The first part is enough of WM_CLASS, but you can use both. Easiest way to find it: xprop WM_CLASS then click inside the window. For example:

$ xprop WM_CLASS
WM_CLASS(STRING) = "leafpad", "Leafpad"

Then use this in ~/.icewm/winoptions :

leafpad.Leafpad.geometry: 640x480+100+100
leafpad.Leafpad.workspace: 2

This is my currently working setting, i've tested it now. Hint: You can reload icewm settings any time with: killall -HUP icewm

  • Ok, in your example "leafpad" is a window class and "Leafpad" is a window title, but why those values come from WM_CLASS (a window title is stored in WM_NAME). For my window xprop shows: WM_CLASS(STRING) = "testApp1", "testApp1" and title is here: WM_NAME(STRING) = "SimpleGL" – Irbis Nov 17 '16 at 16:24

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