everyone. I am using Ubuntu 12.04 and chromium. The problem I am facing is that there is no sound notifications of the incoming message. After doing some search on internet, I found that may be this is because the flash player does not work properly.
However, I can see videos on youtube and some other video sites. I can even see the ads present on the websites. I have found a threads (How do I get adobe flash working in Chrome or Chromium on Ringtail?) in the answer of which describe the exact situation I am facing. That is: on one hand, the official website tells that you have no flash player installed; on the other hand, it can tell your installed flash player version.
I don't know how to fix this because the answer provided ask to delete .tmp file in home directory, which I didn't find exist.
By the way, the notification sound functions well on firefox.