[Libreoffice-bugs] [Bug 144813] New: Ribbon (drop down box) and sidebar options - rapid blinking/flashing.

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=144813

            Bug ID: 144813
           Summary: Ribbon (drop down box) and sidebar options - rapid
                    blinking/flashing.
           Product: LibreOffice
           Version: 7.2.1.2 release
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: c.dermott at blueyonder.co.uk

Description:
Libre Office writer.
Within ribbon tabs: 
[Home] Font and sizes 
[Layout] Formatting
The drop down boxes exhibit continuous rapid blinking/flashing, which get worse
when the cursor is moved across the ribbon. Also, this same problem becomes
manifest when any of the Sidebar options are selected.

In addition, [Layout] Formatting, border appears to be missing for lower two
boxes, I.e. shows a dashed line instead - ribbon may have to be widened
slightly to show this lower border.

Steps to Reproduce:
1. Open LO Writer
2. Initiate ribbon interface
3. Select either [Home] or [Layout]tab
4. Scan cursor anywhere across the ribbon
5. Click on sidebar settings and select any of the 8 available options

Actual Results:
When [Home] or [Layout] tab selected drop down boxes exhibit continuous rapid
blinking/flashing.

When any of the Sidebar options are selected (upon opening), the whole of the
opened panel blinks/flashes in unison with the above drop down boxes.

Expected Results:
Stable drop down boxes and sidebar options - no blinking/flashing.


Reproducible: Always


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
Version: 7.2.1.2 / LibreOffice Community
Build ID: 20(Build:2)
CPU threads: 4; OS: Linux 5.4; UI render: default; VCL: gtk3
Locale: en-GB (en_GB.UTF-8); UI: en-GB
Ubuntu package version: 1:7.2.1-0ubuntu0.18.04.1~lo1
Calc: threaded

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