Xfce Forum

DRAGSTER_TUNER

Member

Registered: 2015-10-27

Posts: 16

Sometimes (JUST sometimes) windows disappears/not appears in taskbar!

Hi everyone!

First of all, i think is important say i have the tasklist on my task bar enabled.

Here is the issue:

Sometimes, and it happens just sometimes, when i minimize a window or open some program, it disappears/not appears in the task bar...

And when it happens, stays even a "hole" among the windows, if the window of the progam that disappears are between two others windows wich are appearing.

I already remove the tasklist from the task bar and installed it again, but no good.

Its a weird problem, since it happens just sometimes, and the disappeared window, ALWAYS SUDDENLY APPEARS AGAIN, after a few secs (10 more or less, i never count it precisely). And it happens just sometimes, not always...

Debian testing installed this week, using hdmi output. Graphic card: onboard HD4600 Intel processor graphic.

Someone can help me?

alcornoqui

Member

Registered: 2014-07-28

Posts: 832

Re: Sometimes (JUST sometimes) windows disappears/not appears in taskbar!

edit: Found the bug report! https://bugzilla.xfce.org/show_bug.cgi?id=14394

Hello. I'm not really sure, but I think this has happened to me recently, with xfce4-panel 4.14.4 in Ubuntu 18.04.

Perhaps ToZ's advice to debug the panel from other thread are in order here:

You can try this:

With root privileges, create the file /usr/local/bin/xfce4-panel with the following content:

#!/bin/bash

export PANEL_DEBUG=1
/usr/bin/xfce4-panel > /tmp/xfce4-panel.log 2>&1

...and make the file executable.

Log out and back in again and if the problem happens, have a look at the /tmp/xfce4-panel.log file.

What this does is the system will run this new xfce-panel executable in /usr/local/bin instead of the real one. This script sets up debug mode and runs the real xfce4-panel executable saving debug log info to /tmp/xfce4-panel.log. When you are done with the troubleshooting, rename the xfce4-panel file in /usr/local/bin and the system will return to running the real one.

Good luck!

DRAGSTER_TUNER

Member

Registered: 2015-10-27

Posts: 16

Re: Sometimes (JUST sometimes) windows disappears/not appears in taskbar!

Thanks for reply, this solution works for me!

Last edited by DRAGSTER_TUNER (2020-05-29 15:04:11)

DRAGSTER_TUNER

Member

Registered: 2015-10-27

Posts: 16

Re: Sometimes (JUST sometimes) windows disappears/not appears in taskbar!

Hi guys...me again...unfortunatelly the sollution was proposed on this post does not works...it works for a few days, but since 4 days ago, the problem back!

I dunno if it was never solved and i didnt noticed or it was fixed by a while...

Anyone have some clue?

alcornoqui

Member

Registered: 2014-07-28

Posts: 832

Re: Sometimes (JUST sometimes) windows disappears/not appears in taskbar!

DId you try the debugging instructions? Aren't there any clues in the /tmp/xfce4-panel.log file?

DRAGSTER_TUNER

Member

Registered: 2015-10-27

Posts: 16

Re: Sometimes (JUST sometimes) windows disappears/not appears in taskbar!

/tmp/xfce4-panel.log file does not exists...how to debug?

eriefisher

Member

From: ON, Canada

Registered: 2008-10-25

Posts: 531

Re: Sometimes (JUST sometimes) windows disappears/not appears in taskbar!

So you didn't follow the instruction ToZ laid out???

If you followed the instructions correctly any event from the panel would be written out to /tmp/xfce4-panel.log. This file will not survive a reboot so you would need to check it right after the issue shows itself. Save it and post it here.

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