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So, after killing the hp systray, reran hpsystray command:
Code:
slackuser@slackmachine:~$ hp-systray -x --logging=debug
HP Linux Imaging and Printing System (ver. 3.16.5)
System Tray Status Service ver. 2.0
Copyright (c) 2001-15 HP Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.
hp-systray[3875]: debug: No module named PyQt5
hp-systray[3875]: debug: Locking: /home/slackuser/.hplip/hp-systray.lock
hp-systray[3875]: debug: Creating pipe: hpssd (5) ==> systemtray (4)
hp-systray[3875]: debug: Creating pipe: hpssd (7) ==> hpdio (4)
hp-systray[3875]: debug: Creating pipe: hpdio (10) ==> hpssd (9)
hp-systray(hpdio)[3878]: debug: PID=3878
hp-systray(hpssd)[3877]: debug: PID=3877
hp-systray(hpssd)[3877]: debug: Entering main dbus loop...
(process:3875): Gtk-WARNING **: Locale not supported by C library.
Using the fallback 'C' locale.
/usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:127: RuntimeWarning: PyOS_InputHook is not available for interactive use of PyGTK
set_interactive(1)
hp-systray(qt4)[3875]: debug: PID=3875
hp-systray(qt4)[3875]: debug: Loading user settings...
hp-systray(qt4)[3875]: debug: FAB command: /usr/bin/hp-fab
hp-systray(qt4)[3875]: debug: Scan command: /usr/bin/xsane -V %SANE_URI%
hp-systray(qt4)[3875]: debug: Auto refresh: True
hp-systray(qt4)[3875]: debug: Auto refresh rate: 300
hp-systray(qt4)[3875]: debug: Auto refresh type: 2
hp-systray(qt4)[3875]: debug: Systray visible: 1
hp-systray(qt4)[3875]: debug: Systray messages: 0
hp-systray(qt4)[3875]: debug: Last used device URI: hp:/net/HP_Color_LaserJet_M553?ip=192.168.1.2
hp-systray(qt4)[3875]: debug: Last used printer:
hp-systray(qt4)[3875]: debug: Working directory: .
hp-systray(qt4)[3875]: debug: Cache miss: hp_color_laserjet_m553
hp-systray(qt4)[3875]: debug: Reading file: /usr/share/hplip/data/models/models.dat
hp-systray(qt4)[3875]: debug: Searching for section [hp_color_laserjet_m553] in file /usr/share/hplip/data/models/models.dat
hp-systray(qt4)[3875]: debug: Found section [hp_color_laserjet_m553] in file /usr/share/hplip/data/models/models.dat
hp-systray(qt4)[3875]: debug: handle_hplip_updation upgrade_notify =0
hp-systray(qt4)[3875]: debug: upgrade notification is disabled in systray
hp-systray(qt4)[3875]: debug: Running hp-upgrade: /usr/bin/hp-upgrade
HP Linux Imaging and Printing System (ver. 3.16.5)
HPLIP upgrade latest version ver. 1.0
Copyright (c) 2001-15 HP Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.
HPLIP upgrade function is disabled in Slackware.
Not attempting to download upgrades.
hp-systray(hpssd)[3877]: debug: GetHistory('hp:/net/HP_Color_LaserJet_M553?ip=192.168.1.2')
hp-systray(qt4)[3875]: debug: Showing...
hp-systray(qt4)[3875]: debug: Hiding...
hp-systray(qt4)[3875]: debug: Hidden
So now after refreshing the device list in HP, (communication error) all of the sudden it is now in my sys tray.... I don't get it, I've had a previous officejet before replacing to this new colour laser , and it acted the same way , even if it wasn't set to go to sleep (which this printer is).....
Still, I don't considered this resolved, because I just know the next time I reboot or go out and come back into LXDE this issue will come back... So.... I don't know
This intermittent hplip disappearing act is also happening to me on my Slackware64-14.2 system. Unfortunately I had to downgrade hplip to 3.13.10 because 3.16.5 didn't get along with my printer (HP-2820).
This behavior also transcends hplip releases, evidently.
I cannot downgrade because then my Laserjet is not found. Plus as stated before, this would still happen with the previous version of HP Device Manager on 14.1 with my former Officejet.
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