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In Linux Mint 20, Solaar suddenly won't start

Created by: SantaFe88

I have installed Solaar on my Linux Mint 20 O/S and was working fine till this morning when Solaar suddenly will not start. Have no idea why.

  • Solaar version: solaar 1.0.4

  • Distribution: Linux Mint 20 XFCE

  • Kernel version (ex. uname -srmo): Linux 5.4.0-53-generic x86_64 GNU/Linux

  • Output of solaar show: (solaar:28696): dbind-WARNING **: 22:33:44.353: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. Unifying Receiver Device path : /dev/hidraw1 USB id : 046d:C52B Serial : 43799195 Firmware : 12.11.B0032 Bootloader : 04.16 Other : AA.AA Has 1 paired device(s) out of a maximum of 6. Notifications: wireless, software present (0x000900) Device activity counters: 2=128

    2: ERGO M575 Trackball Device path : /dev/hidraw6 WPID : 4096 Codename : ERGO M575 Kind : mouse Protocol : HID++ 4.5 Polling rate : 8 ms (125Hz) Serial number: 0EB362BF Model ID: B02740960000 Unit ID: 0EB362BF Bootloader: BOT 40.00.B0009 Firmware: MPM 26.00.B0009 Other: The power switch is located on the base. Supports 26 HID++ 2.0 features: 0: ROOT {0000}
    1: FEATURE SET {0001}
    2: DEVICE FW VERSION {0003}
    Firmware: Bootloader BOT 40.00.B0009 0000ABF1CB8B01 Firmware: Firmware MPM 26.00.B0009 4096ABF1CB8B01 Firmware: Other
    Unit ID: 0EB362BF Model ID: B02740960000 Transport IDs: {'btleid': 'B027', 'wpid': '4096'} 3: DEVICE NAME {0005}
    Name: ERGO M575 Trackball Kind: trackball 4: WIRELESS DEVICE STATUS {1D4B}
    5: RESET {0020}
    6: DEVICE FRIENDLY NAME {0007}
    7: UNIFIED BATTERY {1004}
    8: REPROG CONTROLS V4 {1B04}
    Key/Button Actions: {'80': 80, '81': 81, '82': 82, '86': 86, '83': 83} Key/Button Diversion: {'82': 0, '86': 0, '83': 0, '215': 0} 9: ADJUSTABLE DPI {2201}
    Sensitivity (DPI): 400 10: unknown:2250 {2250}
    11: DFUCONTROL SIGNED {00C2}
    12: DEVICE RESET {1802} internal, hidden 13: unknown:1803 {1803} internal, hidden 14: CONFIG DEVICE PROPS {1806} internal, hidden 15: unknown:1812 {1812} internal, hidden 16: OOBSTATE {1805} internal, hidden 17: unknown:1830 {1830} internal, hidden 18: unknown:1890 {1890} internal, hidden 19: unknown:1891 {1891} internal, hidden 20: unknown:18A1 {18A1} internal, hidden 21: unknown:1E00 {1E00} hidden 22: unknown:1EB0 {1EB0} internal, hidden 23: unknown:1861 {1861} internal, hidden 24: unknown:1E22 {1E22} internal, hidden 25: unknown:1F03 {1F03} internal, hidden Has 6 reprogrammable keys: 0: Left Button , default: Left Click => Left Click
    mse, reprogrammable, analytics key events, pos:0, group:1, group mask:g1 reporting: default 1: Right Button , default: Right Click => Right Click
    mse, reprogrammable, analytics key events, pos:0, group:1, group mask:g1 reporting: default 2: Middle Button , default: Mouse Middle Button => Mouse Middle Button
    mse, reprogrammable, divertable, persistently divertable, raw XY, analytics key events, pos:0, group:2, group mask:g1,g2 reporting: default 3: Forward Button , default: Mouse Forward Button => Mouse Forward Button
    mse, reprogrammable, divertable, persistently divertable, raw XY, analytics key events, pos:0, group:2, group mask:g1,g2 reporting: default 4: Back Button , default: Mouse Back Button => Mouse Back Button
    mse, reprogrammable, divertable, persistently divertable, raw XY, analytics key events, pos:0, group:2, group mask:g1,g2 reporting: default 5: Virtual Gesture Button , default: Virtual Gesture Button => Virtual Gesture Button
    divertable, virtual, raw XY, force raw XY, pos:0, group:3, group mask:empty reporting: default Battery: 100%, discharging.

Nano Receiver Device path : /dev/hidraw3 USB id : 046d:C534 Serial : None Firmware : 29.01.B0016 Has 2 paired device(s) out of a maximum of 2. Has 18 successful pairing(s) remaining. Notifications: wireless, software present (0x000900)

1: Wireless Keyboard MK270 Device path : /dev/hidraw4 WPID : 4023 Codename : MK270 Kind : keyboard Protocol : HID++ 2.0 Polling rate : 20 ms (50Hz) Serial number: 00000000 Model ID: 000000000000 Unit ID: 00000000 Firmware: RQK 49.00.B0029 Supports 18 HID++ 2.0 features: 0: ROOT {0000}
1: FEATURE SET {0001}
2: DEVICE FW VERSION {0003}
Firmware: Firmware RQK 49.00.B0029 4023 Unit ID: 00000000 Model ID: 000000000000 Transport IDs: {} 3: DEVICE NAME {0005}
Name: Wireless Keyboard
Kind: keyboard 4: BATTERY STATUS {1000}
Battery: 30%, discharging, next level 5%. 5: REPROG CONTROLS {1B00}
6: WIRELESS DEVICE STATUS {1D4B}
7: FN INVERSION {40A0}
Swap Fx function: False 8: ENCRYPTION {4100}
9: KEYBOARD LAYOUT {4520}
10: unknown:1810 {1810} internal, hidden 11: unknown:1830 {1830} internal, hidden 12: unknown:1890 {1890} internal, hidden 13: unknown:18A0 {18A0} internal, hidden 14: unknown:18B0 {18B0} internal, hidden 15: unknown:1DF3 {1DF3} internal, hidden 16: unknown:1E00 {1E00} hidden 17: unknown:1868 {1868} internal, hidden Has 11 reprogrammable keys: 0: My Home => HomePage is FN, FN sensitive, reprogrammable 1: Mail => Email is FN, FN sensitive, reprogrammable 2: Search => Search is FN, FN sensitive, reprogrammable 3: Calculator => Calculator is FN, FN sensitive, reprogrammable 4: Media Player => Music is FN, FN sensitive, reprogrammable 5: Previous => Previous is FN, FN sensitive 6: Play/Pause => Play/Pause is FN, FN sensitive 7: Next => Next is FN, FN sensitive 8: Mute => Mute is FN, FN sensitive 9: Volume Down => Volume Down is FN, FN sensitive 10: Volume Up => Volume Up is FN, FN sensitive Battery: 30%, discharging, next level 5%.

2: Wireless Mouse M185 new Device path : /dev/hidraw5 WPID : 4054 Codename : M185n Kind : mouse Protocol : HID++ 4.5 Polling rate : 8 ms (125Hz) Serial number: 00000000 The power switch is located on the base. Battery: unknown (device is offline).


**Describe the bug**
Solaar will Not show icon on task bar and if I run it in terminal I get this:
(solaar:28445): dbind-WARNING **: 22:30:07.881: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
Solaar depends on a udev file that is not present
For more information see the Solaar installation directions
at https://pwr-solaar.github.io/Solaar/installation
solaar: error: Traceback (most recent call last):
  File "/usr/share/solaar/lib/solaar/gtk.py", line 153, in main
    import solaar.listener as listener
  File "/usr/share/solaar/lib/solaar/listener.py", line 32, in <module>
    from logitech_receiver import notifications as _notifications
  File "/usr/share/solaar/lib/logitech_receiver/notifications.py", line 30, in <module>
    from . import diversion as _diversion
  File "/usr/share/solaar/lib/logitech_receiver/diversion.py", line 30, in <module>
    from pynput import keyboard as _keyboard
ModuleNotFoundError: No module named 'pynput'

**To Reproduce**
Steps to reproduce the behavior:
1. Go to 'terminal (or try to start Solaar)'
2. Type solaar in terminal
3. See above error.



**Screenshots**
If applicable, add screenshots to help explain your problem.

**Additional context**
I have NO Idea why Solaar stopped showing the Panel Icon, or opening the GUI in terminal/icon mode.  Unless some other update has messed with it.  I even removed it completely in Synaptic and re-Installed it.

Never done this before, so I hope this helps.