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kerenua

Member

Registered: 2020-05-24

Posts: 1

Varmilo Bluetooth Keyboard

Hi,

I am having a very hard time getting my Varmilo keyboard to work over bluetooth, upon entering the passcode and completing the pair I am unable to type anything. When connected over USB it functions perfectly. Additionally, this bluetooth functionality works fine with Windows.

Neither KDE's built in bluetooth module or bluetoothctl implementation have been successful, see below me interacting with bluetoothctl:

[root@fuark kerenua]# bluetoothctl
Agent registered
[bluetooth]# power on
Changing power on succeeded
[bluetooth]# agent KeyboardOnly
Agent is already registered
[bluetooth]# default-agent
Default agent request successful
[bluetooth]# pairable on
Changing pairable on succeeded
[bluetooth]# scan on
Discovery started
[CHG] Controller 00:1A:7D:DA:71:11 Discovering: yes
[NEW] Device 4C:0D:24:14:3F:1B 4C-0D-24-14-3F-1B
[CHG] Device C9:25:E3:0B:85:E6 RSSI: -45
[CHG] Device C9:25:E3:0B:85:E6 Connected: yes
[NEW] Primary Service (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service000c
	00001801-0000-1000-8000-00805f9b34fb
	Generic Attribute Profile
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service000c/char000d
	00002a05-0000-1000-8000-00805f9b34fb
	Service Changed
[NEW] Descriptor (Handle 0xe8b4)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service000c/char000d/desc000f
	00002902-0000-1000-8000-00805f9b34fb
	Client Characteristic Configuration
[NEW] Primary Service (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010
	0000180a-0000-1000-8000-00805f9b34fb
	Device Information
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010/char0011
	00002a23-0000-1000-8000-00805f9b34fb
	System ID
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010/char0013
	00002a24-0000-1000-8000-00805f9b34fb
	Model Number String
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010/char0015
	00002a25-0000-1000-8000-00805f9b34fb
	Serial Number String
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010/char0017
	00002a26-0000-1000-8000-00805f9b34fb
	Firmware Revision String
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010/char0019
	00002a27-0000-1000-8000-00805f9b34fb
	Hardware Revision String
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010/char001b
	00002a28-0000-1000-8000-00805f9b34fb
	Software Revision String
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010/char001d
	00002a29-0000-1000-8000-00805f9b34fb
	Manufacturer Name String
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010/char001f
	00002a2a-0000-1000-8000-00805f9b34fb
	IEEE 11073-20601 Regulatory Cert. Data List
[NEW] Characteristic (Handle 0x17ce)
	/org/bluez/hci0/dev_C9_25_E3_0B_85_E6/service0010/char0021
	00002a50-0000-1000-8000-00805f9b34fb
	PnP ID
[CHG] Device C9:25:E3:0B:85:E6 ServicesResolved: yes
[CHG] Device C9:25:E3:0B:85:E6 Paired: yes
[NEW] Device 78:65:DA:81:41:D7 D3020MKII 58E2 NAD App
[NEW] Device 75:F5:DF:75:87:3F 75-F5-DF-75-87-3F
[Varmilo VD-1]# paired-devices
Device C9:25:E3:0B:85:E6 Varmilo VD-1
Device DC:AF:68:AB:9A:B7 Wireless Controller
[CHG] Device C9:25:E3:0B:85:E6 ServicesResolved: no
[CHG] Device C9:25:E3:0B:85:E6 Connected: no
[bluetooth]# trust C9:25:E3:0B:85:E6
[CHG] Device C9:25:E3:0B:85:E6 Trusted: yes
Changing C9:25:E3:0B:85:E6 trust succeeded
[CHG] Device C9:25:E3:0B:85:E6 Connected: yes
[CHG] Device C9:25:E3:0B:85:E6 ServicesResolved: yes
[Varmilo VD-1]# connect C9:25:E3:0B:85:E6
Attempting to connect to C9:25:E3:0B:85:E6
Connection successful
[Varmilo VD-1]# quit

Both the keyboard and bluetoothctl agree that they are paired, the keyboards onboard LED is solid to indicate this, but is still unusable. Odd.

How should I proceed? Are there any logs or debugging steps I can take? I like this keyboard very much, and will continue to use in USB mode if there is no alternative -- but would greatly prefer the bluetooth functionality.

Thanks!

Last edited by kerenua (2020-05-24 02:43:28)

skynet007

Member

Registered: 2019-03-08

Posts: 7

Re: Varmilo Bluetooth Keyboard

Hi,

I'm sorry that I cannot help you but I want to push this thread, because I have the same issue.

I was already able to pair the device several times on two different Arch systems. It was not necessary to type in a pass code. It just worked after some attempts to pair/connect.

The keyboard then workds without problems over bluetooth!

But after a disconnect (because of a reboot) it is not possible anymore. Even If I removed the device etc ... I also tried every of the 3 bt channels.

BTW: I tried it with 3 different bluetooth dongles. Same problem everywhere.

Sometimes it works after 50 to 100 tries. Really annoying.

Kind regards.