Hello friends. In the name of storage capacity for my work laptop, I just removed my SSD and put in a larger 2.5" HDD to house my VMs. I did a fresh install of Ubuntu 13.10 64 bit less than a day ago. So far all I've done is installed all of the necessary applications I need. Nothing crazy. No major tweaks. Only thing I did tweak wise was install the Unity Tweak Tool.
I found an article online that shows how you can reset Unity back to default, so I did that. After doing that and rebooting, notifications worked, so I suspected Unity Tweak Tool was to blame. Then ten seconds later my notifications stopped working when I noticed my Empathy icon was wiggling while I was not getting a chat notification in the upper right corner. Rhythmbox does the same thing when I have it minimized and I am hitting my media keys to play the next/previous song.
I didn't bring any hidden files or folders over from my old install on the SSD. I simply did a fresh install and rebuilt everything on my own. The only data I copied was raw data... documents, pictures, music, virtual machines, etc. That was it.
Is anybody else seeing this? With all of the 13.10 64 bit machines I have, I have never seen this once. Yet here on this laptop, I'm seeing it continuously. FYI - I was using this very laptop on the SSD with no issues, but since the fresh install with the new drive it's been a different story. The hard drive has been scanned and there are no errors on it.
EDIT - Reinstalled notify-osd, no change. Created another user, logged in, notifications work. I went back to my main user thinking for sure notifications would be broken, and therefore suggest that something hidden in my home directory was messed up... but nope... notifications now work (temporarily, I'm betting) on my main user just fine. It's almost frustrating that they work because the only thing that changed since they last didn't work was created a new user, which should have had zero impact on the issue.