The Musings of Chris Samuel

If you’re a KDE Ubuntu user (Kubuntu) you might not know that the standard readahead package (which attempts to speed up boot by preloading the kernel file cache by efficiently reading them in advance) is tuned for the Gnome version of Ubuntu and so will be trying to read a bunch of libraries that are probably not installed on your system. So it’s unlikely to do much for your average KDE user!

However, if when you boot you go into the Grub boot loader and add the “profile” option to the end of your command line (after “quiet” for instance) then it will profile the files used during the startup and create new files in /etc/readahead so that next time you start you’ll actually be preloading the files that will be used on your system. I’ve found it’s shaved over 2.5 seconds off my boot time as recorded by bootchart.

There is a bug in Launchpad for this, it’s 369506 but it hasn’t had a lot of love.

I have been assimilated. Or at least my OpenMoko Freerunner has been! It’s now running the Koolu port of Android 1.5 “Cupcake” on it, and with a *very* helpful hint from Damian Spriggs on the OpenMoko community mailing list it’s able to make and receive calls and SMS’s. For the record you need to get ADB working and grab a root shell on the phone. Then you can use the sqlite command line utility to set the “provisioned” flag in its DB.

# sqlite3 /data/data/com.android.providers.settings/databases/settings.db
SQLite version 3.5.9
Enter ".help" for instructions
sqlite> INSERT INTO secure (name, value) VALUES ('device_provisioned', 1);

I’ve also found a rather nice application called VCardIO for importing my contacts exported in VCard v2.1 format from KDE’s Kontact addressbook. Now we’ll see how it goes over the next few days!

So it appears that KDE 4.3 has been tagged in SVN and the directory has appeared in stable on the master KDE FTP server (though currently inaccessible, presumably whilst its populated and propagated to the mirrors). W00t!

After the noise over whether or not the implementation of ODF (Open Document Format) in SP2 for Microsoft Office 2007 was deliberately broken for monopolistic purposes or incompetently implemented (or a combination of both) it’s nice to see that there is active interoperability work going on between vendors and developers at the ODF PlugFest, and the KOffice developers Jos van den Oever and Sven Langkamp attended and contributed to an article on the KDE DOT news website and Sven blogged about his positive experiences at the workshop.

It was first time I was going to such a workshop and I had expected that there would be fights between the different vendors like it happened in some blogs before the workshop. It was a pleasant surprise for me that the athmosphere was very friendly and productive. It was really nice to meet other people projects/companys, put the competition aside for some time, work and drink some beer together.

One neat feature mentioned there is the OfficeShots website which lets you submit an ODF document and then get back renderings of it (PDF, screenshot, ODF) from various ODF implementations. There are 8 listed at present (including KOffice), but sadly MS Word or Google Docs aren’t amongst them (yet).

Not yet announced on the KDE site, but I see that packages for 4.2.90 are arriving via the Kubuntu KDE Experimental PPA (looks like it was tagged and tar’d up 5 days ago!).

If you’re using the Kubuntu 4.3 beta 1 packages for Kubuntu Jaunty you’ll likely find that you suddenly can’t view your albums any more. I traced it down to the following error in my ~/.xsession-errors file:

Could not open library '/usr/lib/kde4/kio_digikamalbums.so'.
Cannot load library /usr/lib/kde4/kio_digikamalbums.so: (/usr/lib/libdigikamcore.so.1: undefined symbol: _ZN6Marble12MarbleWidget16addPlaceMarkDataERK7QStringS3_)

Basically Digikam needs recompiling against the version of Marble in KDE 4.3 to get its symbol names fixed. Doing it isn’t that hard, you need to do:

sudo apt-get build-dep digikam
apt-get source digikam
cd digikam-0.10.0
dpkg-buildpackage

Once that’s done (and it’ll take a while) you’ll have 3 new packages in the parent directory of digikam-0.10.0, the Digikam package, a package for showfoto and a package for Digikams debugging symbols. Just use “sudo dpkg -i ” to install them.

A press release from the University of British Columbia (found via a tweet on the Planck CMB telecopes Twitter feed) talks about their use of the KDE program KST, a real-time large-dataset viewing and plotting tool, chosen because of the amount of data that would be generated:

But the cameras will produce a large amount of scientific data to process–with the LFI instrument alone producing more than 100 Gigabytes a year. Traditional data plotting and analysis packages like MATLAB and IDL wouldn’t cut it.

Both UBC and the University of Toronto have been involved with the development of the KST project, and the Canadian Space Agency has contributed funding to it.

I so hope this finally fixes my Kopete TLS problems! Need to wait for the Kubuntu packages to appear..

Update: the Ubuntu Jaunty packages are currently in the Kubuntu experimental PPA. Downloading now..

Update 2: Upgrading ain’t for the faint hearted, I’ve had to remove packages, used dpkg --force-overwrite -i /var/cache/apt/archives/$foo.deb a couple of times and generally had a fun hour or so trying to upgrade. All done now so this is being edited with the new Konqueror:

Version 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1))
Using KDE 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1))

Here’s some good news, KDE 4.2 has just been released! I’ve been running the 4.2 beta’s and release candidate on Ubuntu Intrepid 8.10 for a while and it’s streets ahead of 4.1 (which is a great relief). Upgrading now as signed packages for Intrepid are in the PPA..

Finally I’ve stumbled across packages of the KDE4 version of Digikam (0.10) which is currently in beta.

deb http://ppa.launchpad.net/digikam-experimental/ppa/ubuntu intrepid main

They’re part of the Digikam Experimental Personal Package Archive (PPA) and so track the latest development releases (0.10.0-rc1 as I write this) and work for me on Ubuntu Intrepid with KDE 4.2 (at the moment) – remember to install Marble!

Note

Many thanks to Maarten Fonville who previously provided packages that this story originally pointed to, and who commented with the above alternative archive.