Arch Linux

kdall99

Member

Registered: 2015-06-12

Posts: 17

LibreOffice >= 5.1: redraws very slow

Hi,

since I updated libreoffice-still to vers. 5.1.5-1 scrolling and paging office documents has become very slow (I see the same behaviour on libreoffice-fresh v. 5.2.0-1).

Downgrading libreoffice-still to v. 5.0.6-2 and glew to v. 1.13.0-1 makes things snappy again for me.

What could be the culprit (maybe GLEW?) and how can I fix that for LibreOffice >= 5.1?

BTW: I'm using KDE plasma as DE and the proprietary Nvidia drivers.

Regards
kdall99

Gordon

Member

From: Scotland

Registered: 2012-06-25

Posts: 19

Re: LibreOffice >= 5.1: redraws very slow

I have the same since update to libreoffice-fresh v. 5.2.0-2 - spreadsheets are very very slow to open and refresh.
glew is at -- glew 2.0.0-1
nvidia -- nvidia 367.35-1
using XFCE4

SuGaRAddiCTeD

Member

Registered: 2007-05-26

Posts: 17

Re: LibreOffice >= 5.1: redraws very slow

add this to your hosts file and see if there is any difference

/etc/hosts

127.0.1.1 your_machine_name

kdall99

Member

Registered: 2015-06-12

Posts: 17

Re: LibreOffice >= 5.1: redraws very slow

add this to your hosts file and see if there is any difference[...]

No there's no difference since it's a graphics rendering problem not some slowness caused by the network, name resolution etc.

But I have found that by setting

export SAL_USE_VCLPLUGIN=gtk3

the redraw speed becomes normal/fast again.

Nevertheless, since by using the above workaround I lose the KDE integration which I have come to like, I'm still interested in a real solution that brings back the speed even when the kde VCL plugin is used.

Gordon

Member

From: Scotland

Registered: 2012-06-25

Posts: 19

Re: LibreOffice >= 5.1: redraws very slow

Neither of those 2 suggestions help.
It is painfully slow switching between sheets within a spreadsheet.
I have the spreadsheet open on a separate window and when I switch back to it it is blank for at least 3 seconds.

Lohengrin

Member

Registered: 2016-08-10

Posts: 6

Re: LibreOffice >= 5.1: redraws very slow

I have the same problem has described by kdall99, regardless whether I use libreoffice-fresh or  libreoffice-still.
Using "export SAL_USE_VCLPLUGIN=gtk3" fixes the problem (it is the only of the four possible values of SAL_USE_VCLPLUGIN. I'm using KDE Plasma and have an nvidia dGPU (without using optimus).

By using export SAL_USE_VCLPLUGIN=gtk3, however, I observe the crazy (and seemingly open) texmaths bug described here: https://sourceforge.net/p/texmaths/bugs/57/

Eventually I downgraded to libreoffice-fresh-5.1.4-1-x86_64.pkg.tar.xz, which solved the problem (when I did this, at first libreoffice did not start, since libGLEW.so.1.13 was not found. I made "sudo cp /usr/lib/libGLEW.so /usr/lib/libGLEW.so.1.13", which is probably not the smartest idea, but it solved the issue for the time being...)

Gordon

Member

From: Scotland

Registered: 2012-06-25

Posts: 19

Re: LibreOffice >= 5.1: redraws very slow

Seems ok now.
Did several changes.

Changed below to the gtk3 line (was gtk) and Nvidia was upgraded to 367.35-2 last night.

# cat /etc/profile.d/libreoffice-fresh.sh
# to force a certain look'n feel
#export SAL_USE_VCLPLUGIN=gen
#export SAL_USE_VCLPLUGIN=kde4
# export SAL_USE_VCLPLUGIN=gtk
export SAL_USE_VCLPLUGIN=gtk3