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#1 2018-09-16 20:04:15

bbktsk
Member
Registered: 2018-09-16
Posts: 2

bluetooth mouse not autoconnecting and not showing up in /dev/input

Hello, I have two, possibly unrelated issues with my brand new install of ArchLinux on Intel NUC box and Logitech Triathlon M720 bluetooth mouse.

Please not that this mouse has a button to select one of three different devices it can pair to and a indicator showing the currently selected one. I have set it to "2" and not touching it at all during this.

First, the mouse does not autoconnect after reboot. I did the usual scan,pair,connect,trust in bluetoothctl, but after reboot, the mouse does not connect. bluetoothctl shows this (after reboot):

[root@yig bk]# bluetoothctl
Agent registered
[bluetooth]# info D5:30:2C:80:0A:CA
Device D5:30:2C:80:0A:CA (random)
	Name: M720 Triathlon
	Alias: M720 Triathlon
	Appearance: 0x03c2
	Icon: input-mouse
	Paired: yes
	Trusted: yes
	Blocked: no
	Connected: no
	LegacyPairing: no
	UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
	UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
	UUID: Device Information        (0000180a-0000-1000-8000-00805f9b34fb)
	UUID: Battery Service           (0000180f-0000-1000-8000-00805f9b34fb)
	UUID: Human Interface Device    (00001812-0000-1000-8000-00805f9b34fb)
	UUID: Vendor specific           (00010000-0000-1000-8000-011f2000046d)

Manual connection in this state works:

[bluetooth]# connect D5:30:2C:80:0A:CA
Attempting to connect to D5:30:2C:80:0A:CA
[CHG] Device D5:30:2C:80:0A:CA Connected: yes
Connection successful
... lots of stuff here ...

And the "Connected" status changes to "yes".

However, although it seems to be connected, it does not show up in /dev/input:

[root@yig bk]# ls -l /dev/input/**
crw-rw---- 1 root input 13, 64 Sep 16 21:25 /dev/input/event0
crw-rw---- 1 root input 13, 65 Sep 16 21:25 /dev/input/event1
crw-rw---- 1 root input 13, 74 Sep 16 21:25 /dev/input/event10
crw-rw---- 1 root input 13, 75 Sep 16 21:25 /dev/input/event11
crw-rw---- 1 root input 13, 76 Sep 16 21:25 /dev/input/event12
crw-rw---- 1 root input 13, 77 Sep 16 21:25 /dev/input/event13
crw-rw---- 1 root input 13, 66 Sep 16 21:25 /dev/input/event2
crw-rw---- 1 root input 13, 67 Sep 16 21:25 /dev/input/event3
crw-rw---- 1 root input 13, 68 Sep 16 21:25 /dev/input/event4
crw-rw---- 1 root input 13, 69 Sep 16 21:25 /dev/input/event5
crw-rw---- 1 root input 13, 70 Sep 16 21:25 /dev/input/event6
crw-rw---- 1 root input 13, 71 Sep 16 21:25 /dev/input/event7
crw-rw---- 1 root input 13, 72 Sep 16 21:25 /dev/input/event8
crw-rw---- 1 root input 13, 73 Sep 16 21:25 /dev/input/event9

/dev/input/by-id:
total 0
lrwxrwxrwx 1 root root 9 Sep 16 21:25 usb-04d9_USB_Keyboard-event-if01 -> ../event4
lrwxrwxrwx 1 root root 9 Sep 16 21:25 usb-04d9_USB_Keyboard-event-kbd -> ../event3

/dev/input/by-path:
total 0
lrwxrwxrwx 1 root root 9 Sep 16 21:25 pci-0000:00:14.0-usb-0:4:1.0-event-kbd -> ../event3
lrwxrwxrwx 1 root root 9 Sep 16 21:25 pci-0000:00:14.0-usb-0:4:1.1-event -> ../event4
lrwxrwxrwx 1 root root 9 Sep 16 21:25 platform-pcspkr-event-spkr -> ../event5

and libinput list-devices does not see it:

[root@yig bk]# libinput list-devices | egrep 'Device|Capab'
Device:           Power Button
Capabilities:     keyboard
Device:           Video Bus
Capabilities:     keyboard
Device:           Power Button
Capabilities:     keyboard
Device:           Sleep Button
Capabilities:     keyboard
Device:           USB Keyboard
Capabilities:     keyboard
Device:           USB Keyboard
Capabilities:     keyboard
Device:           HDA Intel PCH HDMI/DP,pcm=7
Capabilities:
Device:           HDA Intel PCH HDMI/DP,pcm=8
Capabilities:
Device:           HDA Intel PCH HDMI/DP,pcm=9
Capabilities:
Device:           HDA Intel PCH HDMI/DP,pcm=10
Capabilities:
Device:           HDA Intel PCH Front Headphone
Capabilities:
Device:           HDA Intel PCH HDMI/DP,pcm=3
Capabilities:
Device:           ITE8708 CIR transceiver
Capabilities:     keyboard

The same mouse worked without problems on previous Ubuntu installation on this box. Archlinux is current, fresh install with almost nothing extra. Dmesg shows nothing about mouse.
I think this is something stupid, but have no idea what. Returning to desktop linux after years with OSX, so I am kinda lost here 8(

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#2 2018-09-17 14:47:03

bbktsk
Member
Registered: 2018-09-16
Posts: 2

Re: bluetooth mouse not autoconnecting and not showing up in /dev/input

Update: wired mouse works without problems, shows up in /dev/input as expected.

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