26 December 2009

Problem in adjusting brightness in HP laptop using ubuntu

I have a HP laptop and I use ubuntu 9.04. I was facing problem to adjust the brightness of the screen through fn+F7 or fn+F8 keys. I found the solution at http://ubuntuforums.org/showthread.php?t=673946. It should be noted here that it worked after restarting my laptop.

21 December 2009

Problem with audio callback at skype in ubuntu


  • Go to "Options" (Ctrl+O)
  • Click on "Sound Devices"
  • Select "pulse" for both "Sound Out" and "Ringing"
  • For "Sound In", you have to choose your appropriate option. Change the value for "Sound In" and test the sound by clicking on "Make a test call" and following the directions.
More info at https://help.ubuntu.com/community/Skype

20 December 2009

How to shrink image size in ubuntu?

* Use imagemagick (sudo apt-get install imagemagick)

* If it is just one directory worth of images use

mogrify -resize 1024x1024 *.jpg


mogrify -resize 25% *.JPG

For more information, http://ubuntuforums.org/archive/index.php/t-518662.html


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