zarb-ml/mageia-dev/2011-September/007827.html


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   <H1>[Mageia-dev] Problem with gdm metacity again</H1>
    <B>JA Magallon</B> 
    <A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Problem%20with%20gdm%20metacity%20again&In-Reply-To=%3C20110907114233.60b8e19a%40werewolf.home%3E"
       TITLE="[Mageia-dev] Problem with gdm metacity again">jamagallon at ono.com
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    <I>Wed Sep  7 11:42:33 CEST 2011</I>
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<PRE>On Wed, 7 Sep 2011 11:15:21 +0200
JA Magallon &lt;<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">jamagallon at ono.com</A>&gt; wrote:

&gt;<i> Hi...
</I>&gt;<i> 
</I>&gt;<i> This old problem has surfaced again:
</I>&gt;<i> 
</I>&gt;<i> .xsession-errors:
</I>&gt;<i> 
</I>&gt;<i> ...
</I>&gt;<i> Window manager warning: Screen 0 on display &quot;:0&quot; already has a window manager; try using the --replace option to replace the current window manager.
</I>&gt;<i> Window manager warning: Screen 0 on display &quot;:0&quot; already has a window manager; try using the --replace option to replace the current window manager.
</I>&gt;<i> ...
</I>&gt;<i> 
</I>&gt;<i> I get only the nautilus desktop, with two black bars on top and bottom of the screen.
</I>&gt;<i> If I launch a terminal, 'gnome-shell --replace' works fine.
</I>&gt;<i> 
</I>&gt;<i> Any idea ?
</I>&gt;<i> Can it be some personal setting ?
</I>&gt;<i> 
</I>&gt;<i> TIA
</I>
Digging a bit more, something is wrong detecting acceleration.
In GDM log:

gnome-session[4752]: DEBUG(+): fill: *** Looking if /usr/share/gnome-session/sessions/gdm-shell.session is a valid session file
gnome-session[4752]: DEBUG(+): fill: *** Launching helper 'bash -c &quot;gnome-shell --help | grep -q gdm-mode &amp;&amp; /usr/lib64/gnome-session-check-accelerated&quot;' to know if session is runnable
gnome-session-is-accelerated: No hardware 3D support.
gnome-session-check-accelerated: Helper exited with code 256
gnome-session[4752]: WARNING: Session 'gdm-shell' runnable check failed: Exited with code 1
gnome-session[4752]: DEBUG(+): fill: *** Session is not runnable
gnome-session[4752]: DEBUG(+): fill: *** Getting session 'gdm-fallback'

This is for GDM's own session.
The same happens for user.

Any ideas ? How can I check why this fails ?
Its a netbook with Intel graphics, so it uses Mesa.

Will check on an nvidia system too.

TIA
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