Thank you for reporting the bug. To be certain the reported issue is not related to corruption in the user profile, could you please reset your Libreoffice profile ( https://wiki.documentfoundation.org/UserProfile ) and re-test?

I have set the bug's status to 'NEEDINFO'. Please change it back to 'UNCONFIRMED' if the issue is still present

Profile reset - issue continues.

Additional information
Whilst performing a test in safe mode, it seems that the issue is not only confined to ribbon mode, but in standard mode as well.

I have the same problem: I use the standard UI on Linux (LO 7.3, Ubuntu 20.04) and the sidebar flickers when the mouse pointer is over it.

Very annoying...

Version: 7.3.0.3 / LibreOffice Community
Build ID: 30(Build:3)
CPU threads: 96; OS: Linux 5.13; UI render: default; VCL: gtk3
Locale: fr-CH (fr_FR.UTF-8); UI: fr-FR
Ubuntu package version: 1:7.3.0~rc3-0ubuntu0.20.04.1~lo1

A precision: this only occurs when the sidebar is deployed.

New per comment 3.

I don't see this myself, however. Would be good to hear, if you still see this in 7.4.

If you do see it in 7.4, you could also try launching from the command line with

SAL_USE_VCLPLUGIN=gen libreoffice

and see, if that makes a difference.

Are you using Wayland or X11?

Arch Linux 64-bit, X11
Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: de3f13e2175564316eb5a62dee65e9ff8f31b460
CPU threads: 8; OS: Linux 6.0; UI render: default; VCL: gtk3
Locale: fi-FI (fi_FI.UTF-8); UI: en-US
Calc: threaded Jumbo
Built on 9 December 2022

Hi,

I did some tests with LibreOffice 7.4.2.3 in Ubuntu 22.04.

I have three different linux boxes (with same system and LO versions), all with various nvidia graphic boards. They all behave the same.

To me the flickering, blinking, flashing bug appears only in the sidebar.

Here are the test results:

nouveau driver + xorg => no bug
nouveau driver + wayland => no bug

nvidia driver + xorg => bug
nvidia driver + xorg + SAL_USE_VCLPLUGIN=gen => no bug
nvidia driver + wayland => no bug 

The profile was reset for each test.

Chris: do you have an Nvidia graphics card?

Hi again,

after googling more seriously, I came to this post:
 
https://askubuntu.com/questions/1388589/libreoffice-7-2-5-2-ubuntu-20-04-1-lts-flickering-menus-and-right-panel/1434282#1434282

that gave the solution for me.

I indeed had the GTK_IM_MODULE=xim environment variable set and deleting the .xinputrc file and rebooting finally fixed this annoying issue!

This .xinputrc was on all my profiles, that's why I had the problem everywhere.

And this issue showed me that it is not only necessary to test with a fresh LibreOffice profile, but also with a fresh user profile.

A good lesson...

Nice work, Roland! Let's put this to needinfo pending Chris checking the same.

*** Bug 151686 has been marked as a duplicate of this bug. ***

Chris can check the value with

printenv GTK_IM_MODULE

This has a nice way to find out which files set environment variables:
https://unix.stackexchange.com/a/154971

*** Bug 151686 has been marked as a duplicate of this bug. ***

(In reply to Roland Baudin from comment #8)
> Hi again,
> 
> after googling more seriously, I came to this post:
>  
> https://askubuntu.com/questions/1388589/libreoffice-7-2-5-2-ubuntu-20-04-1-
> lts-flickering-menus-and-right-panel/1434282#1434282
> 
> that gave the solution for me.
> 
> I indeed had the GTK_IM_MODULE=xim environment variable set and deleting the
> .xinputrc file and rebooting finally fixed this annoying issue!
> 
> This .xinputrc was on all my profiles, that's why I had the problem
> everywhere.

Hi Roland, 

Apologies for the delay in response. Would like to check this out - but am having difficulty locating .xinputrc on my system. In addition, the askubuntu article doesn't appear to give any indication on where to typically find the .xinputrc file. 

Could you please advise as to where it typically lives?

Chris: see my comment 12 for how to discover more.

(In reply to Chris D from comment #14)
> 
> (In reply to Roland Baudin from comment #8)
> > Hi again,
> > 
> > after googling more seriously, I came to this post:
> >  
> > https://askubuntu.com/questions/1388589/libreoffice-7-2-5-2-ubuntu-20-04-1-
> > lts-flickering-menus-and-right-panel/1434282#1434282
> > 
> > that gave the solution for me.
> > 
> > I indeed had the GTK_IM_MODULE=xim environment variable set and deleting the
> > .xinputrc file and rebooting finally fixed this annoying issue!
> > 
> > This .xinputrc was on all my profiles, that's why I had the problem
> > everywhere.
> 
> Hi Roland, 
> 
> Apologies for the delay in response. Would like to check this out - but am
> having difficulty locating .xinputrc on my system. In addition, the
> askubuntu article doesn't appear to give any indication on where to
> typically find the .xinputrc file. 
> 
> Could you please advise as to where it typically lives?

This file is at the root of your home directory, like .bashrc.

To see if it exists, type in a terminal:

ls -la ~/.xinputrc

(In reply to Roland Baudin from comment #17)
> To see if it exists, type in a terminal:
> 
> ls -la ~/.xinputrc

Hi, In my case, the .xinputrc file did not exist. From my reported https://bugs.documentfoundation.org/show_bug.cgi?id=151686#c6
$ echo "$GTK_IM_MODULE"
xim

shows it is getting set somewhere.
$ find /etc -type f -exec grep -Fw GTK_IM_MODULE {} +
/etc/X11/Xsession.d/70im-config_launch:   [ -z "$GTK_IM_MODULE" ] && \
/etc/X11/Xsession.d/70im-config_launch:    export GTK_IM_MODULE

referenced, but not set here.
Still can't find where getting set, but found a solution, at least short term:
$ export SAL_USE_VCLPLUGIN=gen
$ LibreOffice-7.3.3.2.basic.help-x86_64.AppImage

now the scrollbars (most visible change) and menu fonts are different, looks like openoffice-3 from years ago.

Today I created the ~/.xinputrc file with the line:
GTK_IM_MODULE=ibus

and started LibreOffice without the export above, 
the flickering is gone, but the slowdown is still there.

I suggest you create a new user and check if the GTK_IM_MODULE variable is set for this new user. This could help you to find if the variable is set at system level or at user level.

*** Bug 154134 has been marked as a duplicate of this bug. ***

Dear Chris D,

To make sure we're focusing on the bugs that affect our users today, LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed bugs which have not been touched for over a year.

There have been thousands of bug fixes and commits since anyone checked on this bug report. During that time, it's possible that the bug has been fixed, or the details of the problem have changed. We'd really appreciate your help in getting confirmation that the bug is still present.

If you have time, please do the following:

Test to see if the bug is still present with the latest version of LibreOffice from https://www.libreoffice.org/download/

If the bug is present, please leave a comment that includes the information from Help - About LibreOffice.
 
If the bug is NOT present, please set the bug's Status field to RESOLVED-WORKSFORME and leave a comment that includes the information from Help - About LibreOffice.

Please DO NOT

Update the version field
Reply via email (please reply directly on the bug tracker)
Set the bug's Status field to RESOLVED - FIXED (this status has a particular meaning that is not 
appropriate in this case)


If you want to do more to help you can test to see if your issue is a REGRESSION. To do so:
1. Download and install oldest version of LibreOffice (usually 3.3 unless your bug pertains to a feature added after 3.3) from https://downloadarchive.documentfoundation.org/libreoffice/old/

2. Test your bug
3. Leave a comment with your results.
4a. If the bug was present with 3.3 - set version to 'inherited from OOo';
4b. If the bug was not present in 3.3 - add 'regression' to keyword


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