How to fix "No window manager registered on screen 0." Ask Question Asked 1 year, 7 months ago Modified 1 year, 7 months ago. All to no avail. Not sure if it helps but xfwm4 -- debug log shows Missing defaults file and xsession-errors contains a few critical errors (WNCK_IS_WINDOW and WNCK_IS_WORKSPACE assertions failed probably due to the lack of a working window manager).
Any help on how to get xfwm running again is greatly appreciated. Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use. Exclusive for LQ members, get up to 45% off per month.
Discussion on installation issues and support for xfce4 window manager and xrdp configuration on Pengwin platform. xfce4-panel: No window manager registered on screen 0. To start the panel without this check, run with --disable-wm-check.
This brings up part of the xfce desktop (inner panel missing) but has the application pull-down menu (top part) and the bottom icons. If I click on Applications → Other is Paraview then it displays the Paraview screen. If I go Settings -> Window Manager, nothing happens but in slim.log I can see "These settings cannot work with your current window manager (unknown)".
I am using latest Arch Linux and XFCE 4.8.0. If it's missing, the window manager won't be started automatically. To fix it, open the settings via the menu button in the bottom left corner, go to "Session and startup", "Current Session".
xfce4-panel: No window manager registered on screen 0. To start the panel without this check, run with --disable-wm-check. xfsettingsd: No window manager registered on screen 0.
** Message: applet now embedded in the notification area (xfsettingsd:3409): xfsettingsd-WARNING **: Failed to get the _NET_NUMBER_OF_DESKTOPS property. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error () function.) xfsettingsd: No window manager registered on screen 0. xfce4-panel: No window manager registered on screen 0.
xfce4-session: No gpg or ssh authentication agent found xfce4-panel: No window manager registered on screen 0. To start the panel without this check, run with --disable-wm-check. No window manager registered on screen 0.
To start the xfdesktop without this check, run with --disable-wm-check. /usr/bin/xbindkeys_autostart: line 24: CONF: unbound.