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#1 2022-08-03 17:02:03

stefano75
Member
Registered: 2022-08-03
Posts: 6

Menu/Application bar appear only if I click on the desktop

Hello all,
I have a very basic installation of Arch on a virtual machine. Today I decided to install noto-fonts because I need to display some unicode characters. After doing that, now when I log in, I just see the empty desktop, without the application bar with the menu button.
I remember already had this problem in the past, but not how I fixed it. Maybe it has something to do with xinitrc?
I use LXDE/openbox. If I log in with the root user, everything works fine.
Thank you

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#2 2022-08-03 19:24:55

seth
Member
Registered: 2012-09-03
Posts: 30,973

Re: Menu/Application bar appear only if I click on the desktop

Sounds like https://wiki.archlinux.org/title/LXDE#LXPanel_crashes
"ps aux | grep lxpanel" and try to start lxpanel from an interactive shell.

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#3 2022-08-04 07:13:27

stefano75
Member
Registered: 2022-08-03
Posts: 6

Re: Menu/Application bar appear only if I click on the desktop

Thank you for your help. Unluckily that didn't work. I try to better explain the case: I checked dmesg but didn't see any error about lxpanel.
I log into the system and what I see is the desktop and the mouse pointer. Than, if I click in whatever point, or press ALT+Tab key combination the panel appears, like if it was somehow "hidden". Sorry I can't explain better than this. I just noticed that in my home I don't have the .xinitrc file.

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#4 2022-08-04 07:21:22

seth
Member
Registered: 2012-09-03
Posts: 30,973

Re: Menu/Application bar appear only if I click on the desktop

I checked dmesg but didn't see any error about lxpanel.

Userspace issues won't show up in the kernel ringbuffer - at best in the session/system journal.

if I click in whatever point, or press ALT+Tab key combination the panel appears, like if it was somehow "hidden"

The panel has an autohide feature, maybe you simply enabled that by accident?

I just noticed that in my home I don't have the .xinitrc file.

How do you start the session? LXDM/LightDM or the likes?
xinitrc is only relevant for startx/xinit and XDM.

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#5 2022-08-04 07:30:20

stefano75
Member
Registered: 2022-08-03
Posts: 6

Re: Menu/Application bar appear only if I click on the desktop

Panel properties are ok (there is an auto hide option, but it is disables). I made a ps aux on lx... processes, here's the output:

root         342  0.0  0.0   6664  4464 ?        Ss   07:21   0:00 /usr/sbin/lxdm-binary
root         344  0.3  0.9 328384 80992 tty1     Ssl+ 07:21   0:01 /usr/lib/Xorg -background none :0 vt01 -nolisten tcp -novtswitch -auth /var/run/lxdm/lxdm-:0.auth
root         369  0.0  0.0   9620  5492 ?        S    07:21   0:00 /usr/lib/lxdm/lxdm-session
stefano      378  0.0  0.2 250584 17272 ?        Ssl  07:21   0:00 /usr/bin/lxsession -s LXDE -e LXDE
stefano      394  0.0  0.3 239520 25064 ?        S    07:21   0:00 openbox --config-file /home/stefano/.config/openbox/lxde-rc.xml
stefano      396  0.0  0.2 179348 17640 ?        Sl   07:21   0:00 lxpolkit
stefano      397  0.2  0.4 543128 39844 ?        Sl   07:21   0:00 lxpanel --profile LXDE
stefano      403  0.0  0.1 176484 15516 ?        Sl   07:21   0:00 lxclipboard

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#6 2022-08-04 07:39:18

stefano75
Member
Registered: 2022-08-03
Posts: 6

Re: Menu/Application bar appear only if I click on the desktop

Additional information: I mentioned that my Archlinux is on a Virtualbox machine. I noticed that simply switching Virtualbox full screen mode on/off makes the panel appear.
Maybe this issue is related to Virtualbox?

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#7 2022-08-04 11:51:47

seth
Member
Registered: 2012-09-03
Posts: 30,973

Re: Menu/Application bar appear only if I click on the desktop

simply switching Virtualbox full screen mode on/off makes the panel appear

This probably resizes the virtual screen? What if you just resize the VB window on the host?

That aside, the panel is maybe stacked below the desktop window?
Run "xprop" and click the desktop, post the output.

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#8 2022-08-11 08:57:35

stefano75
Member
Registered: 2022-08-03
Posts: 6

Re: Menu/Application bar appear only if I click on the desktop

I found a partial solution to the problem: if I set the panel position at the bottom, it is immediately visible after login. Thought this is not a real solution, for me is enough.
If  this tells you something, please notice me. Thank you all for your support.

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#9 2022-08-11 14:00:18

seth
Member
Registered: 2012-09-03
Posts: 30,973

Re: Menu/Application bar appear only if I click on the desktop

seth wrote:

What if you just resize the VB window on the host?

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#10 2022-08-13 08:03:11

stefano75
Member
Registered: 2022-08-03
Posts: 6

Re: Menu/Application bar appear only if I click on the desktop

By just resizing the window of Virtual Box, the panel appears

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#11 2022-08-13 10:19:07

seth
Member
Registered: 2012-09-03
Posts: 30,973

Re: Menu/Application bar appear only if I click on the desktop

To be clear: when you click the desktop the panel appears and then just stays?
Sounds like a repaint issue - can you click the invisible panel to instantly use it? (You can also try "xprop" into the panel area before it appears)

Do you also use a compositor?

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