Archives – November, 2010

Problems starting Eclipse

While trying to install a plugin, i’ve made some mess which resulted in Eclipse not starting, giving the following error in the log file:

!SESSION Tue Nov 09 15:18:43 CET 2010 ------------------------------------------
!ENTRY org.eclipse.equinox.launcher 4 0 2010-11-09 15:18:43.233
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter
 at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
 at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:556)
 at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
 at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
 at org.eclipse.equinox.launcher.Main.main(Main.java:1287)

That’s what happen when you force the removal of some files 🙂

I solved the problem purging libequinox-osgi-java and reinstalling Eclipse. Try with:

sudo apt-get remove --purge libequinox-osgi-java
sudo apt-get install eclipse

November 10, 2010

Radeon Mobility M6 LY on Debian Squeeze

Upgrading from Debian Lenny to Squeeze, those having this old embedded video card (my laptop is an IBM Thinkpad R40) have found their video performance dropped. This is due to debian’s policy which produced the distribution of this video card’s firmware in a package that is not installed by default with the x.org driver. In lspci -nn, the card is shown as

01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon Mobility M6 LY [1002:4c59]

After some browsing I’ve found out that this card is part of the R100 family, so the firmware you are searching for are contained in:

sudo apt-get install firmware-linux-nonfree

Make sure that /etc/X11/xorg.conf, if any, uses driver radeon or ati (which redirects to radeon). So in your xorg.conf there must be something like:

Section "Device"
        Identifier      "ATI"
        Driver          "ati"
EndSection

When you are done, you must restart Gnome (or whatever starts X):

sudo service gdm restart

November 8, 2010


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