https://bugs.documentfoundation.org/show_bug.cgi?id=159051
Bug ID: 159051
Summary: UI - Base - Ubuntu 22.04 Horrible Lag Operating a Base
Form with GTK3, but not with KF5
Product: LibreOffice
Version: 7.6.4.1 release
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Base
Assignee: [email protected]
Reporter: [email protected]
I am using Ubuntu 22.04 and for quite some time (1+ year) I noticed that Base
was getting horribly slow when operating a form connected to a MySQL 8
database.
I decided to install the libreoffice ppa and update the version to 7.6.4.1 to
see if that could fix the problem, but it didn't. I tried on 2 different
computers (one with nvidia card and another with a hybrid intel+nvidia) and in
all graphics combination the error is there. The most modern computer is a dell
xps 15 with Intel i9 and Nvidia dedicated card, so it is quite a powerhouse for
what is needed to run Libreoffice.
In the past, Base responsive, but now it is almost unusable. Even when
selecting and deselecting a check box in a table control connected to a boolean
field in a database table, the UI gets extremely slow, and the update takes
1.5+ seconds. During this period, X usage has huge and constant CPU usage
spikes. Even trying to access Base's menu takes forever.
Researching for this type of problem, I noticed many users are having problems
similar to this one, but not on Base.
With a lot of research, it seems the culprit is the package libreoffice-gtk3.
If I uninstall the package, install libreoffice-kf5 and set 'export
SAL_USE_VCLPLUGIN=kf5' in my .profile, then Base is really snappy and there are
no problems at all (even Calc seems a bit faster), so it is not a database
issue or connection to the database issue either.
Another thing that I noticed is that in the past it was very common to have
Base crashing while editing a Form, but so far this hasn't happened with KF5.
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