Bug 14466

Summary:	Compiz thinks another window manager is running: Kubuntu 7.10
Product:	xorg	Reporter:	Ash Goodman <ash>
Component:	App/compiz	Assignee:	David Reveman <reveman>
Status:	RESOLVED NOTOURBUG	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium	CC:	ash
Version:	unspecified
Hardware:	Other
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Ash Goodman 2008-02-11 19:25:05 UTC

When KDE configuration option of hiding desktop icons is enabled compiz crashes with the error message:

/usr/bin/compiz.real (core) - Error: Another window manager is already running on screen: 0
/usr/bin/compiz.real (core) - Fatal: No manageable screens found on display :0

After which windows have no decorations and in most cases windows will open but be unresponsive.

It is fixed by disabling the hide desktop icons feature in KDE and running:
sudo rm ~/.kde/share/config/kdesktoprc from konsole, followed by a reboot and then re-enabling compiz fusion


I am running Kubuntu 7.10 with compiz installed from the ubuntu repositories, nVidia 5500 graphics card, newest nVidia driver (restricted) available from the ubuntu repositories all installed via adept package manager. Platform: Dell Inspiron E1505 Intel Core Duo.

Note: I am not sure if I filed this in the right place or not, (should it be filed with KDE?) its my first ever bug report.

Comment 1 Danny Baumann 2008-03-16 23:53:36 UTC

(In reply to comment #0)
> When KDE configuration option of hiding desktop icons is enabled compiz crashes
> with the error message:
> 
> /usr/bin/compiz.real (core) - Error: Another window manager is already running
> on screen: 0
> /usr/bin/compiz.real (core) - Fatal: No manageable screens found on display :0

It doesn't crash, it just refuses to launch.

> After which windows have no decorations and in most cases windows will open but
> be unresponsive.
> 
> It is fixed by disabling the hide desktop icons feature in KDE and running:
> sudo rm ~/.kde/share/config/kdesktoprc from konsole, followed by a reboot and
> then re-enabling compiz fusion
> 
> 
> I am running Kubuntu 7.10 with compiz installed from the ubuntu repositories,
> nVidia 5500 graphics card, newest nVidia driver (restricted) available from the
> ubuntu repositories all installed via adept package manager. Platform: Dell
> Inspiron E1505 Intel Core Duo.
> 
> Note: I am not sure if I filed this in the right place or not, (should it be
> filed with KDE?) its my first ever bug report.

It should be filed with KDE. Using desktop icons should _not_ affect window manager selection at all, and even if it does, KDE should give up the WM selection properly.

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