Created attachment 85325 [details]
Unity Launcher bar with multiple instances of Writer
When I start LibreOffice (no matter which of the sub-apps Writer, Calc etc) by double-clicking a .od*-File, I get one icon instance in the Unity launcher for each opened document. But in that case those should be grouped together instead of showing a second time the same icon (see screenshot). It further doesn't matter if LibreOffice Writer/... was already pinned/locked to the launcher before. If it was already pinned/locked to the launcher before then anyway a new instance of the icon is displayed.
I have two different computers with the same effect so I don't think of a misconfiguration of my local computer.
I also noticed that same Ubuntu-Version (12.04) on an older 32-bit laptop with older LibreOffice (having v18.104.22.168 there) works flawlessly. I cannot tell for sure when the issue started to occur, but I am pretty sure that with LO 4.0 I did not have the issue. The older laptop is 32-bit - can this make a difference here? I don't think so.
Some bug reports in Ubuntu tell about bamf package being the culprit, but I don't really think so because the older laptop has the same bamf version installed. See
I made further tests while writing this and noticed that when double-clicking *.docx documents for example the grouping works as it then groups all those icons together where a *.docx document is opened. Strangely all *.odt document windows remain as ungrouped separate instance.
I wonder what the difference is in window handling depending on the mimetype or file extension.
Not to mix up with
as of course LibreOffice Writer and Calc etc should not group alltogether.
I reproduce the problem with LO 22.214.171.124, LO 126.96.36.199.0+ (build at home in release mode) and master.
No grouping for ODF files, grouping works for docx files.
There is something changed with 4.1 because it works as expected for me with LO 4.0.5 (generic Linux version).
Best regards. JBF
The bug itself is only partially in LO... The new version includes the StartupWMClass strings to the .desktop file, and that's fine to improve matching but this leads to problems in unity since LO updates the window class values very slowly (after that it sets the new window title) and this confuses old BAMF versions.
A workaround for precise users using LO 4.1 is just removing this key from the .desktop files by using:
sudo sed '/StartupWMClass=.*/d' -i /usr/share/applications/libreoffice-*.desktop
More at https://bugs.launchpad.net/bamf/+bug/1238122
Thank you Marco for the workaround, but I have the same problem with the generic Linux version on Ubuntu 13.04 and this workaround does not work in this case.
Best regards. JBF
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Not reproducible with my own builds of LibreOffice 4.4.x under Ubuntu 14.10.
Closing as WorksForMe.
Best regards. JBF