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No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

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  No right or middle click on XFCE desktop after Upgrade from Jessie  to Stretch dmacdoug <dmacdoug@usc.edu> - 2016-11-15 21:30 +0100
    Re: No right or middle click on XFCE desktop after Upgrade from  Jessie to Stretch Charlie Kravetz <cjk@teamcharliesangels.com> - 2016-11-16 00:20 +0100
      Re: No right or middle click on XFCE desktop after Upgrade from  Jessie to Stretch dmacdoug <dmacdoug@usc.edu> - 2016-11-16 01:30 +0100
    Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch Mike Kupfer <mkupfer@alum.berkeley.edu> - 2016-11-16 03:10 +0100
      Re: No right or middle click on XFCE desktop after Upgrade from  Jessie to Stretch dmacdoug <dmacdoug@usc.edu> - 2016-11-16 08:10 +0100
        Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch Lisi Reisz <lisi.reisz@gmail.com> - 2016-11-16 11:40 +0100
        Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch Mike Kupfer <mkupfer@alum.berkeley.edu> - 2016-11-16 16:30 +0100
          Re: No right or middle click on XFCE desktop after Upgrade from  Jessie to Stretch dmacdoug <dmacdoug@usc.edu> - 2016-11-16 20:10 +0100
            Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch Mike Kupfer <mkupfer@alum.berkeley.edu> - 2016-11-17 04:40 +0100
              Re: No right or middle click on XFCE desktop after Upgrade from  Jessie to Stretch dmacdoug <dmacdoug@usc.edu> - 2016-11-17 06:50 +0100
                Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch Mike Kupfer <mkupfer@alum.berkeley.edu> - 2016-11-17 17:00 +0100
                  Re: No right or middle click on XFCE desktop after Upgrade from  Jessie to Stretch dmacdoug <dmacdoug@usc.edu> - 2016-11-18 00:00 +0100
                    Re: No right or middle click on XFCE desktop after Upgrade from  Jessie to Stretch dmacdoug <dmacdoug@usc.edu> - 2016-11-24 06:10 +0100

#174774 — No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

Hello,

A month or two ago I moved a certain computer from jessie 
to stretch and after doing so found that neither the right
nor the middle mouse buttons have any effect when clicked 
on the XFCE desktop.  The expected thing happens when
clicking on a panel, but on the desktop, nothing.  To get 
to the applications menu I have to have that button on a
panel and always use it.

I recall vaguely, in past version updates, having the same 
problem and eventually finding a checkbox somehere that 
had come unchecked during the upgrade process, but this 
time I've  searched in vain for a checkbox or any other 
means to reset it.

I've done searches for mention of anyone else having this
problem and found nothing.  I did find people actually 
wanting to disable right clicking on desktop in kiosk 
mode and being told that it's impossible without 
recompiling which makes me wonder how this has happened.

I'm wondering if this is a bug or have I just not yet 
found the proper place to reset something?  

Don MacDougall

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#174779 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On Tue, 15 Nov 2016 12:03:44 -0800
dmacdoug <dmacdoug@usc.edu> wrote:

>Hello,
>
>A month or two ago I moved a certain computer from jessie 
>to stretch and after doing so found that neither the right
>nor the middle mouse buttons have any effect when clicked 
>on the XFCE desktop.  The expected thing happens when
>clicking on a panel, but on the desktop, nothing.  To get 
>to the applications menu I have to have that button on a
>panel and always use it.
>
>I recall vaguely, in past version updates, having the same 
>problem and eventually finding a checkbox somehere that 
>had come unchecked during the upgrade process, but this 
>time I've  searched in vain for a checkbox or any other 
>means to reset it.
>
>I've done searches for mention of anyone else having this
>problem and found nothing.  I did find people actually 
>wanting to disable right clicking on desktop in kiosk 
>mode and being told that it's impossible without 
>recompiling which makes me wonder how this has happened.
>
>I'm wondering if this is a bug or have I just not yet 
>found the proper place to reset something?  
>
>Don MacDougall
>

It's a new version of Xfce. The missing boxes are located in :
Settings -> Desktop -> Menus

Desktop Menu -> Include applications menus on desktop right click

Window List Menu -> Show window list menu on desktop middle click


- -- 
Charlie Kravetz
Linux Registered User Number 425914
[http://linuxcounter.net/user/425914.html]
Never let anyone steal your DREAM.   [http://keepingdreams.com]
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#174780 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

On Tue, Nov 15, 2016 at 02:48:13PM -0800, Charlie Kravetz wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> 
> On Tue, 15 Nov 2016 12:03:44 -0800
> dmacdoug <dmacdoug@usc.edu> wrote:
> 
> >Hello,
> >
> >A month or two ago I moved a certain computer from jessie 
> >to stretch and after doing so found that neither the right
> >nor the middle mouse buttons have any effect when clicked 
> >on the XFCE desktop.  The expected thing happens when
> >clicking on a panel, but on the desktop, nothing.  To get 
> >to the applications menu I have to have that button on a
> >panel and always use it.
> >
> >I recall vaguely, in past version updates, having the same 
> >problem and eventually finding a checkbox somehere that 
> >had come unchecked during the upgrade process, but this 
> >time I've  searched in vain for a checkbox or any other 
> >means to reset it.
> >
> >I've done searches for mention of anyone else having this
> >problem and found nothing.  I did find people actually 
> >wanting to disable right clicking on desktop in kiosk 
> >mode and being told that it's impossible without 
> >recompiling which makes me wonder how this has happened.
> >
> >I'm wondering if this is a bug or have I just not yet 
> >found the proper place to reset something?  
> >
> >Don MacDougall
> >
> 
> It's a new version of Xfce. The missing boxes are located in :
> Settings -> Desktop -> Menus
> 
> Desktop Menu -> Include applications menus on desktop right click
> 
> Window List Menu -> Show window list menu on desktop middle click
> 
> 
> - -- 
> Charlie Kravetz

Thank you Charlie, but those setting are not the problem.  
They are both checked, but the Desktop Menu box only 
determines whether the Applications menu is appended to 
the other items that show up when you right-click.  When
I right-click, nothing shows, whether the box is checked 
or unchecked.  I've changed both of those setting and
my problem never changes.  I have several other machines
(one almost identical except for the debian version) that 
are still on Jessie and on them checking those boxes has 
the expected effect as it did on this on before the 
upgrade, but on this one with version Jessie there simply
is nothing whatsoever that happens when right-clicking on
the desktop.  I wondered if the right mouse buttons was 
not registering at all, but I found that it operates just 
fine when over a panel.

Don

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#174784 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

dmacdoug wrote:

> A month or two ago I moved a certain computer from jessie 
> to stretch and after doing so found that neither the right
> nor the middle mouse buttons have any effect when clicked 
> on the XFCE desktop.

Is xfdesktop running?

mike

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#174787 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

On Tue, Nov 15, 2016 at 06:02:27PM -0800, Mike Kupfer wrote:
> dmacdoug wrote:
> 
> > A month or two ago I moved a certain computer from jessie 
> > to stretch and after doing so found that neither the right
> > nor the middle mouse buttons have any effect when clicked 
> > on the XFCE desktop.
> 
> Is xfdesktop running?
> 
No, it isn't.  It looks like pretty much everything else in
xfce is running, but xfdesktop isn't.

Now I guess I gotta figure out why.  I've been looking for 
errors in logfiles, but I'm not sure where to begin.

Don

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#174789 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

On Wednesday 16 November 2016 07:01:16 dmacdoug wrote:
> On Tue, Nov 15, 2016 at 06:02:27PM -0800, Mike Kupfer wrote:
> > dmacdoug wrote:
> > > A month or two ago I moved a certain computer from jessie
> > > to stretch and after doing so found that neither the right
> > > nor the middle mouse buttons have any effect when clicked
> > > on the XFCE desktop.
> >
> > Is xfdesktop running?
>
> No, it isn't.  It looks like pretty much everything else in
> xfce is running, but xfdesktop isn't.
>
> Now I guess I gotta figure out why. 

Is it installed?

Lisi
> I've been looking for 
> errors in logfiles, but I'm not sure where to begin.
>
> Don

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#174798 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

dmacdoug wrote:

> On Tue, Nov 15, 2016 at 06:02:27PM -0800, Mike Kupfer wrote:
> > Is xfdesktop running?

> No, it isn't.  It looks like pretty much everything else in
> xfce is running, but xfdesktop isn't.

Assuming it's installed (good point, Lisi), I would try just running it
from a shell or Alt-F2.  Once you get it running, as long as you have
your session set to remember what processes are running, it should start
when you log in again.

mike

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#174804 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

On Wed, Nov 16, 2016 at 07:25:14AM -0800, Mike Kupfer wrote:
> dmacdoug wrote:
> 
> > On Tue, Nov 15, 2016 at 06:02:27PM -0800, Mike Kupfer wrote:
> > > Is xfdesktop running?
> 
> > No, it isn't.  It looks like pretty much everything else in
> > xfce is running, but xfdesktop isn't.
> 
> Assuming it's installed (good point, Lisi), I would try just running it
> from a shell or Alt-F2.  Once you get it running, as long as you have
> your session set to remember what processes are running, it should start
> when you log in again.
> 

It is installed and I've tried running it from a shell.  The man page 
says it should be started without arguments, but when I do that it 
says "Failed to parse arguments: Cannot open display:" so I guess it's 
trying to find some arguments in some config file.  I've looked for 
where it might be looking for them and why it can't parse them but 
there seem to be quite a few config xml files and I haven't yet 
figured out which one or ones it is attempting to parse and why it
can't parse them.

I was hoping it might have an option to run verbosely so I could see
where it is failing but no such luck.  I may have to download the
source and read it to find out where those error messages are 
pointing to.  If someone can suggest an easier way, I'm all ears.

Thanks for letting me know that once I get it to start xfce should
keep track of that and restart it the next time, I didn't know that.

Don

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#174807 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

dmacdoug wrote:

> It is installed and I've tried running it from a shell.  The man page 
> says it should be started without arguments, but when I do that it 
> says "Failed to parse arguments: Cannot open display:"

I get that message if the DISPLAY environment variable is not set, or if
it's set incorrectly, when I start xfdesktop.  Otherwise, running it
from a shell works fine for me.

Can you start other X-based applications, e.g., xclock, from the same
shell?  What is the output from

  echo $DISPLAY

?

mike

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#174808 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

On Wed, Nov 16, 2016 at 07:36:29PM -0800, Mike Kupfer wrote:
> dmacdoug wrote:
> 
> > It is installed and I've tried running it from a shell.  The man page 
> > says it should be started without arguments, but when I do that it 
> > says "Failed to parse arguments: Cannot open display:"
> 
> I get that message if the DISPLAY environment variable is not set, or if
> it's set incorrectly, when I start xfdesktop.  Otherwise, running it
> from a shell works fine for me.
> 
> Can you start other X-based applications, e.g., xclock, from the same
> shell?  What is the output from
> 
>   echo $DISPLAY

sure enough there is no DISPLAY environment variable set. So I set it and
then the error message became:

Failed to connect to session manager: Failed to connect to the session
manager: SESSION_MANAGER environment variable not defined

I notice there are several other variables missing which do appear on
another machine with working xfce system, i.e. one still on stretch 
distribution, such as XDG_MENU_PREFIX=xfce-, XDG_CONFIG_DIRS=/etc/xdg 
as well as SESSION_MANAGER and several others.

Don

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#174820 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

dmacdoug wrote:

> sure enough there is no DISPLAY environment variable set. So I set it and
> then the error message became:
> 
> Failed to connect to session manager: Failed to connect to the session
> manager: SESSION_MANAGER environment variable not defined
> 
> I notice there are several other variables missing which do appear on
> another machine with working xfce system, i.e. one still on stretch 
> distribution, such as XDG_MENU_PREFIX=xfce-, XDG_CONFIG_DIRS=/etc/xdg 
> as well as SESSION_MANAGER and several others.

Huh.  How odd.  I guess the next step would be to do "pgrep xf" on a
working and non-working system and see what's not running on the
non-working system.  (In particular, is xfce4-session running?)  Then
make sure the corresponding packages are installed on the non-working
system.

What display manager is the non-working system using?

Is /usr/bin/startxfce4 present on the non-working system?

mike

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#174838 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

On Thu, Nov 17, 2016 at 07:50:36AM -0800, Mike Kupfer wrote:
> dmacdoug wrote:
> 
> > sure enough there is no DISPLAY environment variable set. So I set it and
> > then the error message became:
> > 
> > Failed to connect to session manager: Failed to connect to the session
> > manager: SESSION_MANAGER environment variable not defined
> > 
> > I notice there are several other variables missing which do appear on
> > another machine with working xfce system, i.e. one still on stretch 
> > distribution, such as XDG_MENU_PREFIX=xfce-, XDG_CONFIG_DIRS=/etc/xdg 
> > as well as SESSION_MANAGER and several others.
> 
> Huh.  How odd.  I guess the next step would be to do "pgrep xf" on a
> working and non-working system and see what's not running on the
> non-working system.  (In particular, is xfce4-session running?)  Then
> make sure the corresponding packages are installed on the non-working
> system.
> 
> What display manager is the non-working system using?
> 
> Is /usr/bin/startxfce4 present on the non-working system?
> 
It looks like lightdm is runnung on the system that is not working.  

I don't think there is any display manager on the working system.
On it, startx runs xinit which starts xfce4.

startxfce4 is present on both systems.

I did something yesterday and ended up restarting the system on 
the non-working machine and mow it looks like xfce4 isn't running 
on that machine.  I don't have physical access to it till Sunday 
afternoon.  I'm currently working on it through a remote shell
and I'm not sure if or how I can start an X session on the 
console from a remote shell so I think I'll have to continue this
next week.  Then I'll compare them with pgrep and see what 
differences there are.

Until then, thanks for your help.  

To be continued.
Don

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#175041 — Re: No right or middle click on XFCE desktop after Upgrade from Jessie to Stretch

On Thu, Nov 17, 2016 at 02:57:19PM -0800, dmacdoug wrote:
> On Thu, Nov 17, 2016 at 07:50:36AM -0800, Mike Kupfer wrote:
> > dmacdoug wrote:
> > 
> > > sure enough there is no DISPLAY environment variable set. So I set it and
> > > then the error message became:
> > > 
> > > Failed to connect to session manager: Failed to connect to the session
> > > manager: SESSION_MANAGER environment variable not defined
> > > 
> > > I notice there are several other variables missing which do appear on
> > > another machine with working xfce system, i.e. one still on stretch 
> > > distribution, such as XDG_MENU_PREFIX=xfce-, XDG_CONFIG_DIRS=/etc/xdg 
> > > as well as SESSION_MANAGER and several others.
> > 
> > Huh.  How odd.  I guess the next step would be to do "pgrep xf" on a
> > working and non-working system and see what's not running on the
> > non-working system.  (In particular, is xfce4-session running?)  Then
> > make sure the corresponding packages are installed on the non-working
> > system.
> > 
> > What display manager is the non-working system using?
> > 
> > Is /usr/bin/startxfce4 present on the non-working system?
> > 
> It looks like lightdm is runnung on the system that is not working.  
> 
> I don't think there is any display manager on the working system.
> On it, startx runs xinit which starts xfce4.
> 
> startxfce4 is present on both systems.
> 
> I did something yesterday and ended up restarting the system on 
> the non-working machine and mow it looks like xfce4 isn't running 
> on that machine.  I don't have physical access to it till Sunday 
> afternoon.  I'm currently working on it through a remote shell
> and I'm not sure if or how I can start an X session on the 
> console from a remote shell so I think I'll have to continue this
> next week.  Then I'll compare them with pgrep and see what 
> differences there are.
> 
> Until then, thanks for your help.  
> 
> To be continued.
> Don
> 

I wish could explain what was wrong and what fixed it, but in any 
case, I can report that after installing all the latest package 
updates (it is the testing distribution) and restarting the system 
it seems like all of the XFCE4 processes that would be expected are 
running with the exception of xfdesktop, so I ran it from the 
command line in a shell and this time it ran just fine and, as you 
said, it runs automatically now whenever the system is restarted.  
When I updated the packages I noticed that a number of xfce4 
packages updated.  I don't know if any of the changes in them had 
anything to do with things working correctly afterwards or just 
coincidence.

Thank you very much for your help.  I know a little bit more about
XFCE4 now than I did.

Don

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