Install nvidia GTX980 driver in Fedora 23/22/21

I found a good and working tutorial unter

Here my notes for Fedora 23 and my GTX980:


Install Docker in Ubuntu 12.04 Precise

First make sure you have the latest version and an actual kernel running. Execute theses commands as root:

Then install docker with the following lines as root:

After this docker should be up and running. Rry using “docker ps” as root or with sudo.

docker on Linux Mint 17.2 Rafaela

There seem to be some missing dependencies in package. Here are the steps to get docker running in Linux Mint 17.2:

If you want to use docker as simple user you have to add this user to the docker group. Don’t forget to relogin if you add your actual user to a new group.

opensuse: nokogiri gem installation fails

Extracting libxml2-2.9.2.tar.gz into tmp/x86_64-suse-linux-gnu/ports/libxml2/2.9.2… OK
Running patch with /usr/lib64/ruby/gems/2.1.0/gems/nokogiri-…
Running ‘patch’ for libxml2 2.9.2… ERROR, review ‘/usr/lib64/ruby/gems/2.1.0/gems/nokogiri-’ to see what happened.
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.

The mentioned log tells us that patch executable is not installed. Fixed by:


How to access BeanManager in a JEE application

There are different ways to get a reference to javax.enterprise.inject.spi.BeanManager in an JEE application:

  • @Inject private BeanManager beanManager;
  • private BeanManager bm = javax.enterprise.inject.spi.CDI.current().getBeanManager();

Especially the second one can be very handy if you hit a part that doesn’t support CDI already.

External ActiveMQ with Wildfly 9.0.1

Target of this post is to configure a vanilla Wildfly 9.0.1 to use an external vanilla ActiveMQ 5.12.0. These are the latest releases on 2015-09-18. I got it running with following steps:

  1. Download Wildfly 9.0.1 if you don’t have it already:
  2. Download ActiveMQ 5.12.0 if you don’t have it already:
  3. Download ActiveMQ Resource Adapter if you don’t have it already:
  4. Extract all the downloaded files. You can place Wildfly and ActiveMQ wherever you want. The resource adapter should go to $WILDFLY/modules/org/apache/activemq/main. All files in should go to this folder.
  5. Edit $WILDFLY/modules/org/apache/activemq/main/META-INF/ra.xml and remove the part marked with <!– NOTE disable the following property if you do not wish to deploy an embedded broker –>
  6. Add the file $WILDFLY/modules/org/apache/activemq/main/module.xml with this content
  7. Edit $WILDFLY/standalone/configuration/standalone.xml and add the following parts:
    • Under urn:jboss:domain:ejb3:3.0 add
    • Under urn:jboss:domain:resource-adapters:3.0 add the resource adapter
  8. In your project you will need to activate javax.jms.api in your jboss-deployment-structure.xml file (placed in WEB-INF folder):
  9. Now you should be able to write your MDB like this
  10. You will find the ActiveMQ management gui under http://localhost:8161/admin/. The default credentials are admin/admin.

Photoshop color problem with P24W-6 IPS color profile

I tried using Photoshop CC and got a warning that there is a problem with my color profile. I ignored it and tried to start using PS. When I created a new image with white background the white wasn’t white at all. It took me hours to find out that I can’t solve this problem in Photoshop because I have to solve it in Windows.

I had to open extended color managemet and add a new default profile “sRGB IEC61966-2.1”. After a restart of PS my white was good enough again =)