Solution for showing more notifications in the bubble
For Ubuntu 13.04 and up. If you interpret OPs question as "I want more notifications to appear",
sudo nano /usr/share/glib-2.0/schemas/net.launchpad.indicator.notifications.gschema.xml
Look for the lines that say
<range min="1" max = "10"/>
and then edit the
`<range min="1" max = "10"/> to whatever you need.
For the curious
In the debian for the software, it has a few folders that it installs into. It installs things into
/usr/lib. Library files are in
.so so I can't edit anything in there. Navigating through
/usr/share, I found the
doc folder which is just debian package info,
pixmaps which are the pngs for the icons on the notification bar, and then there was
glib-2.0 which conveniently had an easy to read xml file. This is where you edit the variable to show whatever value of notifications you want.
Solution for Saving the Notifications to File
If you interpret OPs question as "I want to see my notification history", this is a general solution, you can do what you want with the log produced, IE let it accumulate, have it clear on shutdown, etc. Indicator-notifications is based on notify-osd as noted in their notes. Indicator-notifications is not necessary for this solution.
sudo nano /etc/environment add
You notifications will now be stored in
Edit: Global Variables may be a bad idea to change because it is unknown what other programs use that variable. Add
LOG=1 to your local .bashrc instead.