gnome-panel - hplip - icon-menu empty

[frank]

in gnome-panel (gnome-flashback) there is an icon for hp-printer (looks like part of indicator-applet), if i click it, a menu is shown, but no readable menuentries. i tried to make screenshot while menu is open, but menu is not visble on this screenshot (seems like it is some kind of overlay).

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: hplip 3.20.3+dfsg0-2
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CupsErrorLog:

CurrentDesktop: GNOME-Flashback:GNOME
Date: Wed May 13 17:33:35 2020
InstallationDate: Installed on 2020-04-27 (16 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Lpstat: device for HP-Color-LaserJet-MFP-M277dw: socket://192.168.0.200
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 27c6:530c Shenzhen Goodix Technology Co.,Ltd. Fingerprint Reader
 Bus 001 Device 002: ID 0c45:671f Microdia Integrated_Webcam_HD
 Bus 001 Device 004: ID 8087:0aaa Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. G5 5590
Papersize: a4
PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/HP-Color-LaserJet-MFP-M277dw.ppd'] failed with exit code 2: grep: /etc/cups/ppd/HP-Color-LaserJet-MFP-M277dw.ppd: Permission denied
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-29-generic root=UUID=7c9113b7-ca65-4c46-9435-f5d2b73bab72 ro quiet splash vt.handoff=7
SourcePackage: hplip
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/07/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.12.0
dmi.board.name: 0KW84T
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.12.0:bd02/07/2020:svnDellInc.:pnG55590:pvr:rvnDellInc.:rn0KW84T:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: GSeries
dmi.product.name: G5 5590
dmi.product.sku: 08EA
dmi.sys.vendor: Dell Inc.

[frank (frankwu)]

any idea here? maybe problem is not in hplip and there is a problem in gnome-panel/incicator-applet?

[Alberts Muktupāvels (muktupavels)]

Use Screenshot application to create screenshot. Choose "Grab the whole screen", set few seconds as delay, press "Take Screenshot". Open menu and and after delay screenshot will be created.

[Alberts Muktupāvels (muktupavels)]

From quick look this might be problem in indicator-application...

Looks like hplip trayicon first is created without menu, "/NO_DBUSMENU" is set as "Menu" for status notifier item. Then it is updated to correct menu path, but indicator does not recreate menu.

D-Bus menu is created only when application is added:
https://git.launchpad.net/ubuntu/+source/indicator-application/tree/src/indicator-application.c#n555

As workaround use `systemctl --user restart indicator-application.service` to restart indicator application. Then it will pickup / use correct menu path.

[frank (frankwu)]

workaround works so far, can i automate it (autostart or similar) till it is fixed?

[Alberts Muktupāvels (muktupavels)]

Don't know... This needs to be done after hplip tray icon is added/started.

[frank (frankwu)]

the hp-tray-icon is started via gnome startup-applications

on console (after killing the tray-application) this works:

hp-systray -x & sleep 15 && systemctl --user restart indicator-application.service

but if i modify the existing entry to this command-line it does not (maybe this is not executed via shell). i put this into a bash-script and changed the startup-entry to this..now it works

as far as i understand you this is still a problem in hplip or more indicator-applet?

[Alberts Muktupāvels (muktupavels)]

I think real bug is in indicator-application. Definitely not in indicator-applet as it only loads various indicators. I guess it could be fixed also in hplip... For some reason menu is set after some delay - https://git.launchpad.net/ubuntu/+source/hplip/tree/ui5/systemtray.py#n359

[frank (frankwu)]

i guess delay is for checking printer-status first before building menu...atm i can live with the workaround, but it should be fixed :) thank you very much