[X2go-dev] X2Go client occasionally loses mouse cursor

[John A. Sullivan III]

On Mon, 2010-09-13 at 14:07 +0200, Paul van der Vlis wrote:
> John A. Sullivan III schreef:
> > On Mon, 2010-08-30 at 21:52 -0400, John A. Sullivan III wrote:
> >> On Fri, 2010-08-27 at 13:35 -0400, John A. Sullivan III wrote:
> >>> On Wed, 2010-08-25 at 16:38 -0400, John A. Sullivan III wrote:
> >>>> Hello, all.  We've seen this bug rarely but enough to know that it is a
> >>>> real bug and not just a coincidence. Here is the report from our
> >>>> internal trouble ticket.  Unfortunately, it smells like it might be
> >>>> something in the NX libraries:
> >>>>
> >>>> The user called because she could not see her mouse cursor in her
> >>>> virtual desktop.  It was visible in her physical desktop. As we later
> >>>> observed, it was indeed present in the virtual desktop, e.g., if she
> >>>> happened to stop the mouse over a file in Konqueror, it would display
> >>>> the thumbnail, but the mouse cursor was not visible.
> >>>>
> >>>> We tried suspending and reconnecting; that did not work.  I could see
> >>>> where the mouse was supposed to be via my VNC session to her physical
> >>>> desktop so I tried to change the mouse cursor theme but that did not
> >>>> work (and required a restart of KDE).
> >>>>
> >>>> Finally, before rebooting to try to re-establish the connection between
> >>>> her physical and virtual desktops to display the mouse cursor, we
> >>>> thought to suspend her X2Go session and then completely close her X2Go
> >>>> client.  When she restarted the client and reconnected to her X2Go
> >>>> session, the mouse had re-appeared.  We did not need to reboot the
> >>>> physical computer.
> >>> <snip>
> >>> We saw this again today for the same user.  Has anyone else experienced
> >>> this? Thanks - John
> >> <snip>
> >> We now have another user who experienced this twice today.  I'm willing
> >> to put in the time to troubleshoot this but I'm not sure where to begin.
> >> Any ideas? Thanks - John
> > <snip>
> > This is now happening many times a day and is causing quite an upset.  I
> > scoured the Internet for ideas and there seems to be lots of reports
> > about this on Debian and Ubuntu but no clear identification of the
> > problem or clear fixes.
> > 
> > I posted to the Debian mailing list assuming it is a Debian problem.
> > They recommended editing xorg.conf to add Option "SWCursor" "yes" to the
> > video driver.  That didn't help.  Using Ctl-Alt-D as someone else
> > suggested to recover the mouse did not help.  I'm not sure if NX and
> > X2Go are complicating the issue.  Has anyone else seen this? Has anyone
> > solved it? It is making the system approach unusable.  Thanks - John
> 
> I don't know the problem, but did you search the knowledgebase of
> Nomachine?  http://www.nomachine.com/kb/
> There is much in it about mouses and cursors.
> 
> With regards,
> Paul van der Vlis.
> 
> 
> 
> 
Thanks, Paul.  I gave the NoMachine knowledge base a perusal tonight and
did not turn up anything.  This is still a major problem for us with
users reporting losing their mouse cursor sometimes four times a day :(

Has anyone else seen this problem? Thanks - John