Is there any application out there that can record desktop notifications for review later in case they were missed? I seem to remember back in the day when I used Linux Mint that desktop notifications would go in the system tray to be read later. Something like that would be great, especially if it were not tied to a specific desktop environment. (Ideally, I would also like the ability to choose to not record notifications from certain apps.) I haven't been able to turn up much by searching, except for a couple things that seem to be only for Ubuntu.

What desktop environment are you using?

I am using Openbox with the tint2 handling the system tray.

The problem is, of course, that _desktop_ notifications are _desktop specific_, so dependent on which desktop (environment, I don't think pure window managers support them) you are using.
What you want is some kind of logging facility of those notifications and no, I do not know of one, but maybe others do?

I thought libnotify, notify-send, etc. were fairly universal things, but maybe the actual displaying of notifications is something that is normally handled by the desktop environment. I had to install xfce4-notifyd to get notifications working on Openbox, for example. Still seems like the kind of thing that should be possible to do in a desktop agnostic way, but maybe no one has tried.

I wish I could help, but I generally avoid desktop notifications.

It may well be true that the utilities that generate them are ubiquitous, but as far as I know, each DE handles them in its own way.

For some reason, I would think that DBus would be looking for a sink for notifications. Snuffles around on the intertubes...

Yep! https://developer.gnome.org/notification-spec/

Hmm. Snuffles some more...

https://askubuntu.com/questions/7702...y-send-actions has some bash scripts that should more-or-less do the trick; at least for well-behaved applications that use DBus to send notifications to the desktop.

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Thanks for looking. I'll have a look at your links when I get the chance.

You've got dunst that has an history you can call back with a keybinding (I use ctrl+h but can't recall if it's default).

It's DE agnostic (I use it with i3wm) and pretty actively developed.

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Great, I will try that. It's even on SBo already.

Well, this seems to do the trick. Thanks! Marking as solved. The default shortcut to show history is Ctrl+~, by the way.

Just to add information, I'm test driving Cinnamon now, and it has this feature as I remembered. Missed notifications go to a spot in the system tray by default, though I think you can configure that to not happen. I haven't tried the latest Plasma 5, but I believe I saw a video demonstrating a similar feature. dunst is a good cross-environment solution.