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Description of problem:
While combo box for choosing style, font size or font type (Writer) is opened, I am unable to control any other window (firefox, hexchat) on other monitors, application itself cannot be minimized or closed via controls on top window panel, even Gnome shell activities, calendar and panel are not responsive.

Version-Release number of selected component (if applicable):
libreoffice-5.3.6.1-2.el7.x86_64

How reproducible:
always

Steps to Reproduce:
1.Open Writer/Calc
2.Expand the combo box to change font style/size
3.Click on: Activities, Time/Date, Try to use other applications, try to close LO window

Actual results:
Gnome shell panel, desktop of any other application is not responsive.

Expected results:
User should be able to use gnome shell and other apps on other monitors after moving mouse above them.

Additional info:

Is this happening on real hardware, or in virt-viewer ?

yes, I can reproduce this on my 7.4 with LO libreoffice-5.3.6.1-2.el7.x86_64.

(In reply to Martin Krajnak from comment #3)
> yes, I can reproduce this on my 7.4 with LO libreoffice-5.3.6.1-2.el7.x86_64.

Sorry for inconvenience, I meant both real hardware and VM.

I think I see this locally on a RHEL-7 box, but same LibreOffice version on my Fedora 26 box doesn't show the same problem. I wonder where the difference lies.

I am not sure, but do you think that bug is not in libreoffice itself ? Is there a possibility that it might be caused by changes in gnome-shell ?

possibly, but I'm sure gnome-shell would immediately argue that libreoffice is wrong for being different to other gtk3 apps which don't exhibit the same problem

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0751