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&lt;p&gt;When starting Ubuntu 22.04 LTS with mate-desktop 1.26.0 all the applications started, but they had no border and title bars. There was no mouse cursor I could move, and alt-tab'ing did not work either.&lt;/p&gt;
&lt;p&gt;dconf:&lt;/p&gt;
&lt;pre class="literal-block"&gt;
[org/mate/desktop/session/required-components]
windowmanager='marco-no-composite'
&lt;/pre&gt;
&lt;p&gt;/var/log/syslog:&lt;/p&gt;
&lt;pre class="literal-block"&gt;
Sep 27 08:20:42 mogiedyne mate-session[1496]: WARNING: Unable to find provider 'marco-no-composite' of required component 'windowmanager'
Sep 27 08:20:42 mogiedyne mate-session[1496]: WARNING: Unable to find provider '' of required component 'dock'
&lt;/pre&gt;
&lt;p&gt;Solution: Install mate-tweak, which had been removed earlier. mate-tweak provides the &amp;quot;marco-no-composite&amp;quot; window manager. Restart lightdm, and window borders will be there. Then configure &amp;quot;Marco (built-in: Xpresent)&amp;quot; as window manager in mate-tweak.&lt;/p&gt;
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