Résoudre les problèmes de son dans Ubuntu
Dans mes aventures avec Ubuntu, j'ai eu un problème de son lorsque j'ai utilisé mon casque pour Skype.
J'ai bien cherché sur Internet mais j'ai pas trouvé des liens qui traite mon problème et moins en français. Donc, voila un petit guide dans j'explique comment j'ai procédé.
Ce guide est réalisé avec Ubuntu 9.10 - the Karmic Koala
First, check your sound preferences in System -> Preferences -> Sound
In the input tab, you will have a list of the available sound input for your machine. For example, I got 2 microphone. The first for the one integrated with my webcam and the second was for the input plugin.
Sound Preferences
- Verify that your microphone isn't muted. It should look like this :
Input volume
If your microphone is working you should get something like this :
Microphone working
If you get something like this, your microphone is not working.
No microphone detected
Now, I will explain how I got it working for me. I did this while trying many things, so if you try it tell me if it's working actually. Also, it might not be the best solution.
So, I installed Gnome ALSA mixer.
In Synaptic (System -> Administration -> Synaptic Package Manager), type gnome-alsamixer in the search and install it.
You will find gnome alsa mixer under Applications -> Sound & Video. You will get something like this :
GNOME ALSA Mixer
Now adjust your input volume and make sure to test them all. In my case, it was Front Microphone which controls my headset micro. If you go back to the sound preferences, and using the right input you should see that the input of your microphone moving.
You can test the input with Sound Recorder (Applications -> Sounds & Video) or if you are using Skype with the Testing call (Options -> Sounds Devices -> make a test call).
This is it ! If you have some questions or remarks let me now.
Working with GWT on Ubuntu 9
It's will be simple to start the example project. expect that there's some things to do to run hosted mode.
Running the web application will give you an error like this :
** Unable to load Mozilla for hosted mode ** java.lang.UnsatisfiedLinkError: .../eclipse/plugins/com.google.gwt.eclipse.sdkbundle.linux_.../gwt-linux-2.0/mozilla-1.7.12/libxpcom.so: libstdc++.so.5: cannot open shared object file: No such file or directory at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1778) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1674) at java.lang.Runtime.load0(Runtime.java:770) at java.lang.System.load(System.java:1003) at com.google.gwt.dev.shell.moz.MozillaInstall.load(MozillaInstall.java:190) at com.google.gwt.dev.BootStrapPlatform.initHostedMode(BootStrapPlatform.java:53) at com.google.gwt.dev.HostedModeBase.(HostedModeBase.java:434) at com.google.gwt.dev.SwtHostedModeBase.(SwtHostedModeBase.java:162) at com.google.gwt.dev.HostedMode.(HostedMode.java:282) at com.google.gwt.dev.HostedMode.main(HostedMode.java:241)
This is due that the libstdc++5 is missing from your Ubuntu.
Usually an update thorough apt-get can save
sudo apt-get install libstdc++5
but you can get this message
Package libstdc++5 is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package libstdc++5 has no installation candidate
Then you will have to get the libstdc++5 manually like this
# change directory to /tmp directory: cd /tmp/ # download deb package: wget -c http://lug.mtu.edu/ubuntu/pool/main/g/gcc-3.3/libstdc++5_3.3.6-10_i386.deb # unpack deb package to get library file dpkg -x libstdc++5_3.3.6-10_i386.deb libstdc++5 # copy library file to /usr/bin directory sudo cp libstdc++5/usr/lib/libstdc++.so.5.0.7 /usr/lib # change directory to /usr/lib directory cd /usr/lib # create a link to library sudo ln -s libstdc++.so.5.0.7 libstdc++.so.5
Now you will be able to run the hosted mode.
Playing with Live Messenger API
Messenger Live API down
Today, I want to try the API for Windows Live Messenger from Microsoft.
First, I rapidly found the official site http://dev.live.com/Messenger/. Interesting site with a good layout and pictures. But soon I was redirect to MSDN with a lot of text that don't say a lot of things.
What was interesting is a interactive SDK which will have samples to use the Messenger Web Toolkit and have a intercative demo with code snippet for the Toolkit controls.
I was exiceted by this until I got this message --->
Since this morning, I was waiting for the supposed 24 hours to end. And the most amazing that I didn't found anywhere else the samples sources.
Fortunally, I made some breakthourgh even without these samples and spending long minutes on MSDN using many samples of other Live APIs.
I will post a little tutorial about making a C# Web Application later. Stay tuned.