I'm on Ubuntu 12.04 using Unity. To try it out, I installed the xubuntu-desktop package. Ever since I have a orange or red update notification (see attachment) in my Unity indicator panel, telling me about recommended and security updates, respectively.
Q: How can I disable the notifications?
What i expect to happen: There is an option to show these updates when you press the update notification. I disabled it and thought it wouldn't show again after a reboot. In addition, I ran dconf-editor and manually checked if the option to hide updates is enabled.
What happened instead: The update notifications are still there, the only way to get rid of them is to do the updates.
Best Answer
I don't know if this is a solution or just a workaround to your problem , but you can disable the update-notifier from startup applications. I think you will not receive anymore update-notifications then.
Open a terminal and give this command
Then try to disable it from startup applications and see if your problem solved.
OR
take a look inside
/etc/xdg/lxsessionand see if is something there related to update-notifier