HPLIP - No system tray detected on this system (Bug #1453303)

[Ian Bruntlett]

Hi,

On Fri, 25 Dec 2020 at 19:50, Peter Flynn <peter at silmaril.ie> wrote:

> Yes, it's a long-standing bug in all versions I have used which they
> appear unable or unwilling to fix. A system tray is a Windows thing, and
> while there are plenty of Linux WM equivalents, HP don't seem to be able to
> use them.
>
Made a little bit of progress. I don't think it is a bug in hplip...

I backed up my copy of /usr/share/hplip/ui5/systemtray.py and changed the
relevant bit of code from:-
    i = 0
    while i < 60:
        if QSystemTrayIcon.isSystemTrayAvailable():
            break
        time.sleep(1.0)
        i += 1

To...
    i = 0
    while i < 600:
        if QSystemTrayIcon.isSystemTrayAvailable():
            break
        time.sleep(1.0)
        i += 1

And HPLIP *still* did not get access to the system tray.

Interestingly enough, while I was waiting for the above 10 minute wait for
a system tray, I discovered that there were *three* instances of
systemtray.py running!

$ pgrep -a systr
1795 /usr/bin/python3 /usr/bin/hp-systray -x
1908 /usr/bin/python3 /usr/bin/hp-systray -x
1909 /usr/bin/python3 /usr/bin/hp-systray -x

The plot thickens.

Any ideas?

TIA,



Ian

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