[winswitch] Windows not appearing in task manager

Douglas Doole dougdoole at gmail.com
Wed Jun 24 16:38:00 BST 2015

I created ticket 895 for this problem.

On Mon, Jun 22, 2015 at 11:24 AM Antoine Martin <antoine at nagafix.co.uk>

> On 22/06/15 16:54, Douglas Doole wrote:
> > Since upgrading to xpra 0.15.x (both .0 and .1 have this problem) I've
> had
> > trouble with windows not appearing in the task manager. (xpra 0.14.x
> never
> > had this problem.)
> FWIW: there is a lot of new code to do with window grouping in the task
> bar for MS Windows clients, but the code is almost identical to v0.14.x
> for all the other platforms.
> Which windows do and don't appear in the task manager, depends on the
> task manager and various window attributes - most importantly the
> "window type" and "group-leader", and potentially other attributes (pid,
> etc).
> You can view some those properties with something like:
> $ xpra info | egrep "window-type=|class-instance=|\.title=|transient="
> > For example, I'll start one konsole over xpra and it will appear in the
> > task manager. Yet when I start a second konsole it appears on screen, but
> > not in the task manager.
> Some task managers do group applications by type/class or pid.
> This could be happening here.
> >  Unfortunately I haven't been able to pin down a
> > pattern to which windows appear in the task bar and which ones don't.
> > (Today, the first window I created showed up in the task bar and the rest
> > are not. I do not, however, have consistent good luck with the first
> window
> > created.) The problem does not seem to be tied to a specific application.
> > (I mostly use konsole and gvim, but I've seen the problem with other
> > applications as well.)
> This sort of bug should be mostly application agnostic.
> > As I'm playing with things and writing this note, I see that it's having
> > more trouble than I originally thought. I have now also seen an existing
> > task manager entry disappear as a new window is created. The task manage
> > entry for the new window may or may not be created.
> This sounds very broken indeed.
> Can you please file a ticket so we can track this?
> There are already some platform integration items due for 0.16, like
> integrating into Unity / Gnome3 / Windows 7 onwards task bar / etc..
> > My client and server are both running Ubuntu 14.04. My client is using
> KDE.
> >
> > I have tried starting with client with "-d window" but it didn't report
> > anything. Is there a different debug option I should use?
> You can try with "-d client", but this is going to be very verbose and
> you will need to grep the output for things like "group_leader".
> Cheers
> Antoine
> >
> > Thanks.
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