No feedback when stuck waiting for package manager lock

[jeremypw]

What Happened?

I inadvertantly started an "Update All" process while having Synaptic open. The process proceeded to certain point but then stalled with the progressbar at 100%, the spinner working, and the cancel button tooltip reading "Waiting". It was not immediate obvious what was causing the wait. Once Synaptic was closed the process completed quickly.

Steps to Reproduce

1. Start Synaptic or similar process
2. Launch AppCenter and start an "Update All" process
3. Observe that the process proceeds for a while then stalls with no obvious feedback as to reason.

Expected Behavior

Clear user feedback should be given when an update process cannot complete until a user action is taken

OS Version

6.x (Odin)

Software Version

Compiled from git

Log Output

No response

Hardware Info

No response

[danirabbit]

Yeah if we can't explicitly get into about a package lock, we could use a timeout like mutter does for windows that aren't responsive, but either way we should probably throw a dialog with like "cancel" and "keep waiting" and some kind of copy about making sure other package managers are closed