ImageJ locks up gnome-panel on Ubuntu

[Raymond Lillard]

The subject covers it.  I am running the
most current ImageJ on Ubuntu (Hardy).
When I use ImageJ and have several windows
open I am unable to switch between virtual
desktops with the pager.  Also I am unable
to launch any programs by clicking on the
icon on the toolbar.  Applets such as the
calendar/clock are also in-accessible.

Switching desktops with the keyboard still
works.  Focus still follows my mouse.

I have not been able to tie this to any
specific action or sequence of actions,
but it is common enough for others to
have seen it, I think.

My system is x86_64.

BTW, ImageJ runs fine, it is just that I
lose control of my desktop.

I have googled for this and found nothing.
I have looked in the Xorg log file and
found nothing.  If no one here has seen
this, I guess I will ask next on an Ubuntu
list.

Thanks,
Ray

[Pariksheet Nanda]

> On Tue, Oct 7, 2008 at 2:10 PM, Raymond Lillard <[hidden email]> wrote:

It would be worth investigating messages from gnome-panel at the time
of launching and running ImageJ
Unfortunately I'm an XFCE user, so I wouldn't be able to recommend
where to look :)
I can't find where gnome-panel would log messages to.

But in the context of this mailing list, perhaps we can look closely
at the ImageJ version you are using, the JRE used to compile / run it
and events that prompt this lock up to happen.

> The subject covers it.  I am running the
> most current ImageJ on Ubuntu (Hardy).
>
You mean the most current release from the ImageJ v.1.40 from the website?
http://rsbweb.nih.gov/ij/download/
...or the most current ImageJ in Ubuntu's package manager?
If so can you verify which version of JRE it uses?

Also does it happen with earlier versions of ImageJ?

> I have not been able to tie this to any
> specific action or sequence of actions,
> but it is common enough for others to
> have seen it, I think.
>
So it does not happen immediately, but over the course of time?

> My system is x86_64.
>
> BTW, ImageJ runs fine, it is just that I
> lose control of my desktop.
>
> I have googled for this and found nothing.
> I have looked in the Xorg log file and
> found nothing.  If no one here has seen
> this, I guess I will ask next on an Ubuntu
> list.
>

I didn't have much luck either searching on Gnome's bugzilla with
Product = "gnome-panel"
Status = (shift +select all)
Summary = freezes, freeze, lock, locks

> Thanks,
> Ray
>
Hope that helps,
Pariksheet

[Raymond Lillard]

Pariksheet,

Thanks for the reply.  A few days past, I was able to
to find a work-around.  I would have followed up my own
post but as there were no replies in a week, I assumed
(incorrectly) that the thread was dead.

Succinctly, the problem has nothing to do with ImageJ.
I was seeing it only with ImageJ because that is the
only way I normally come to have more than 7 windows
open at once.

It is a Gnome bug.  When one uses a vertical panel,
the bug is triggered on creation of the 8th window.
I have re-configured my desktop and moved on.

For a detailed explanation see Bug #187540 in Launchpad.

Regards,
Ray



Pariksheet Nanda wrote:

>> On Tue, Oct 7, 2008 at 2:10 PM, Raymond Lillard <[hidden email]> wrote:
>
> It would be worth investigating messages from gnome-panel at the time
> of launching and running ImageJ
> Unfortunately I'm an XFCE user, so I wouldn't be able to recommend
> where to look :)
> I can't find where gnome-panel would log messages to.
>
> But in the context of this mailing list, perhaps we can look closely
> at the ImageJ version you are using, the JRE used to compile / run it
> and events that prompt this lock up to happen.
>
>> The subject covers it.  I am running the
>> most current ImageJ on Ubuntu (Hardy).
>>
> You mean the most current release from the ImageJ v.1.40 from the website?
> http://rsbweb.nih.gov/ij/download/
> ...or the most current ImageJ in Ubuntu's package manager?
> If so can you verify which version of JRE it uses?
>
> Also does it happen with earlier versions of ImageJ?
>
>> I have not been able to tie this to any
>> specific action or sequence of actions,
>> but it is common enough for others to
>> have seen it, I think.
>>
> So it does not happen immediately, but over the course of time?
>
>> My system is x86_64.
>>
>> BTW, ImageJ runs fine, it is just that I
>> lose control of my desktop.
>>
>> I have googled for this and found nothing.
>> I have looked in the Xorg log file and
>> found nothing.  If no one here has seen
>> this, I guess I will ask next on an Ubuntu
>> list.
>>
> I didn't have much luck either searching on Gnome's bugzilla with
> Product = "gnome-panel"
> Status = (shift +select all)
> Summary = freezes, freeze, lock, locks
>
>> Thanks,
>> Ray
>>
> Hope that helps,
> Pariksheet