<div dir="ltr"><div dir="ltr"><div><ul><p>
I have a system that has been running fine for years under all past versions of
Xubuntu up through 18.04. The dual monitors are configures <i>without</i>
Xinerama so that separate desktop sessions with separate panels launch
on each screen.
</p><p>
After the recent upgrade to Xubuntu 18.10, even though it is properly
configured, the second monitor is not
being recognized.</p><p>
However, the second monitor is actually active:
</p><ul><li>Upon boot it goes from black to a uniform grey (although, it is back to black after trying to start a second window manager)<br></li><br><li>The mouse can travel onto the second screen (pointer visible)
and keyboard input (e.g., volume keys) are active
</li><br><li>Xscreensaver displays on both monitors when it goes active
</li><br><li>In a terminal window, issuing the command:
<b>DISPLAY=:0.1 xfce4-terminal</b> displays the new
terminal on the grey background of the second screen
</li></ul><p>
I have tried to manually start an <b>xfwm4</b> window manager,
<b>xfdesktop</b> desktop and <b>xfce4-panel</b> panel on the
second screen, with no success. I have also tried to create a $HOME/.xinitrc file with the
desired command but this also fails.
</p><p>I have provided a page at the following link with very detailed images and notes on configuration, log files, command output, etc. so as not to clutter up this post<br></p><p><a href="http://smallthoughts.com/xfce/xfce.html">http://smallthoughts.com/xfce/xfce.html</a><br></p><p>
So my questions are:
</p><ul><li>What changed between Xubuntu 18.04 and 18.10 that is keeping
the OS from detecting the second screen and configuring it
properly and what can I do to rectify the problem?
</li><br><li>Supporting dual monitors with separate window managers seems like
a common set-up, yet I can't find straightforward documentation
on enabling this. Am I missing something?
</li><br><li>What modifications do I need to implement to get this second
screen and desktop configuration re-enabled?
</li></ul><p>
Thanks for any help you can offer.
</p></ul></div><div>Regards,<br>-- <br>Jeff</div></div></div>