HPLIP

  1. Bug #1453303
  2. Comment #2

Comment 2 for bug 1453303

Revision history for this message
Ian Bruntlett (ian-bruntlett) wrote :

I am experiencing this problem on Ubuntu 20.04.1 LTS on a lenovo ThinkPad T420.

The above solution does work, however, I have two suggestions.

Now my Python is *really* rusty (no pun intended). And my Qt isn't Cute.

The systray detecting code is in this Python file - /usr/share/hplip/ui5/systemtray.py

At the bottom of that file, there is a method called "run". It polls QSystemTrayIcon.isSystemTrayAvailable(), once a second, for 60 seconds. This hardcodes a magic number (60) in the source code. I believe that is an error and it should be possible to override that with a shell variable (if that is practical).

Once the script has determined there is no system tray, it displays a dialogue box stating "No system tray detected on this system." and then waits for the user to "OK" to quit. I think a more robust approach to this would be to have a "Retry" button in this dialogue, so that if a system tray is not detected in time, the user would be able to click "Retry" and hopefully the system tray will be detected that time.

Compliments of the Season...