I installed Telegram following these instruction:
Run the following lines: sudo add-apt-repository ppa:atareao/telegram sudo apt-get update sudo apt-get install telegram To run, simply open Dash and type Telegram. You will see an option called "Telegram Desktop". If you encounter any issue like Telegram not opening the Desktop version, but instead the Web version, run the following: /opt/telegram/Telegram This should make the Telegram Desktop version appear on the Ubuntu Dash.
As i found here.
But Telegram still doesn't appear on the Ubuntu Dash. Any idea?