Bluetooth mouse is not able to connect

[Pavel Moukhataev]

I recently bought not expensive wireless mouse with bluetooth support:
https://www.aliexpress.com/item/Wireless-Mouse-Bluetooth-Mouse-Silent-Computer-Mouse-PC-Mause-Wireless-Rechargeable-Ergonomic-Optical-USB-Mice-2/32879862474.html?spm=a2g0s.12269583.0.0.36ab310dUGrVZS

I works in MacOS X and Windows but doesn't work in Linux. I suppose I can debug that mouse under Windows to collect more information if I have proper instructions.

I collected some information about that mouse:
# uname -a
Linux asus-N752VX 4.15.0-46-generic #49-Ubuntu SMP Wed Feb 6 09:33:07 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

# lsb_release -a
Distributor ID: Ubuntu
Description: Ubuntu 18.04.2 LTS
Release: 18.04
Codename: bionic

# lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 0bda:8763 Realtek Semiconductor Corp. (BT usb)
Bus 001 Device 002: ID 0bda:57f6 Realtek Semiconductor Corp. (Web cam)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

# usb-devices
T: Bus=01 Lev=01 Prnt=01 Port=08 Cnt=04 Dev#= 6 Spd=12 MxCh= 0
D: Ver= 2.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0bda ProdID=8763 Rev=02.00
S: Manufacturer=Realtek
S: Product=Bluetooth Radio
S: SerialNumber=00e04c000001
C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb

# bluetoothctl --version
bluetoothctl: 5.48

# hciconfig -a
hci0: Type: Primary Bus: USB
    BD Address: 94:E9:79:1A:89:1D ACL MTU: 820:8 SCO MTU: 255:16
    UP RUNNING PSCAN
    RX bytes:1604 acl:0 sco:0 events:170 errors:0
    TX bytes:28036 acl:0 sco:0 commands:166 errors:0
    Features: 0xff 0xff 0xff 0xfe 0xdb 0xff 0x7b 0x87
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
    Link policy: RSWITCH HOLD SNIFF PARK
    Link mode: SLAVE ACCEPT
    Name: 'asus-N752VX'
    Class: 0x1c010c
    Service Classes: Rendering, Capturing, Object Transfer
    Device Class: Computer, Laptop
    HCI Version: 4.0 (0x6) Revision: 0xe3e
    LMP Version: 4.0 (0x6) Subversion: 0x4380
    Manufacturer: Realtek Semiconductor Corporation (93)

# bluetoothctl
[NEW] Controller 94:E9:79:1A:89:1D asus-N752VX [default]
[NEW] Device 5A:4B:3C:0E:07:B2 Bluetooth Mouse 4.0

# show
Controller 94:E9:79:1A:89:1D (public)
    Name: asus-N752VX
    Alias: asus-N752VX
    Class: 0x001c010c
    Powered: yes
    Discoverable: no
    Pairable: yes
    UUID: Headset AG (00001112-0000-1000-8000-00805f9b34fb)
    UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
    UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb)
    UUID: OBEX File Transfer (00001106-0000-1000-8000-00805f9b34fb)
    UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb)
    UUID: OBEX Object Push (00001105-0000-1000-8000-00805f9b34fb)
    UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
    UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
    UUID: IrMC Sync (00001104-0000-1000-8000-00805f9b34fb)
    UUID: Audio Source (0000110a-0000-1000-8000-00805f9b34fb)
    UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb)
    UUID: Vendor specific (00005005-0000-1000-8000-0002ee000001)
    UUID: Message Notification Se.. (00001133-0000-1000-8000-00805f9b34fb)
    UUID: Phonebook Access Server (0000112f-0000-1000-8000-00805f9b34fb)
    UUID: Message Access Server (00001132-0000-1000-8000-00805f9b34fb)
    UUID: Headset (00001108-0000-1000-8000-00805f9b34fb)
    Modalias: usb:v1D6Bp0246d0530
    Discovering: no

# devices
Device 5A:4B:3C:0E:07:B2 Bluetooth Mouse 4.0

# info 5A:4B:3C:0E:07:B2
Device 5A:4B:3C:0E:07:B2 (public)
    Name: Bluetooth Mouse 4.0
    Alias: Bluetooth Mouse 4.0
    Class: 0x00002580
    Icon: input-mouse
    Paired: yes
    Trusted: yes
    Blocked: no
    Connected: no
    LegacyPairing: no
    UUID: Human Interface Device... (00001124-0000-1000-8000-00805f9b34fb)
    UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
    Modalias: usb:v0A5Cp0001d0129

# paired-devices
Device 5A:4B:3C:0E:07:B2 Bluetooth Mouse 4.0

# trust 5A:4B:3C:0E:07:B2
Changing 5A:4B:3C:0E:07:B2 trust succeeded

# connect 5A:4B:3C:0E:07:B2
Attempting to connect to 5A:4B:3C:0E:07:B2
Failed to connect: org.bluez.Error.Failed

# rfkill list
0: phy0: Wireless LAN
    Soft blocked: yes
    Hard blocked: no
1: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

/var/log/syslog:
16:34:35 asus-N752VX bluetoothd[1313]: src/device.c:connect_profiles() /org/bluez/hci0/dev_5A_4B_3C_0E_07_B2 (all), client :1.197
16:34:35 asus-N752VX bluetoothd[1313]: profiles/input/device.c:input_device_connect()
16:34:35 asus-N752VX bluetoothd[1313]: Can't get HIDP connection info
16:34:35 asus-N752VX bluetoothd[1313]: src/service.c:change_state() 0x55e9a562e690: device 5A:4B:3C:0E:07:B2 profile input-hid state changed: disconnected -> connecting (0)
16:34:40 asus-N752VX bluetoothd[1313]: src/adapter.c:connect_failed_callback() hci0 5A:4B:3C:0E:07:B2 status 4
16:34:40 asus-N752VX bluetoothd[1313]: plugins/policy.c:conn_fail_cb() status 4
16:34:40 asus-N752VX bluetoothd[1313]: src/adapter.c:bonding_attempt_complete() hci0 bdaddr 5A:4B:3C:0E:07:B2 type 0 status 0x4
16:34:40 asus-N752VX bluetoothd[1313]: src/device.c:device_bonding_complete() bonding (nil) status 0x04
16:34:40 asus-N752VX bluetoothd[1313]: src/device.c:device_bonding_failed() status 4
16:34:40 asus-N752VX bluetoothd[1313]: src/adapter.c:resume_discovery()
16:34:40 asus-N752VX bluetoothd[1313]: connect error: Host is down (112)
16:34:40 asus-N752VX bluetoothd[1313]: src/service.c:change_state() 0x55e9a562e690: device 5A:4B:3C:0E:07:B2 profile input-hid state changed: connecting -> disconnected (-5)
16:34:40 asus-N752VX bluetoothd[1313]: src/device.c:device_profile_connected() input-hid Input/output error (5)
16:34:40 asus-N752VX bluetoothd[1313]: src/device.c:device_profile_connected() returning response to :1.197

# sudo btmon --write hcitrace.snoop
Bluetooth monitor ver 5.48
= Note: Linux version 4.15.0-46-generic (x86_64) 0.203123
= Note: Bluetooth subsystem version 2.22 0.203126
= New Index: 94:E9:79:1A:89:1D (Primary,USB,hci0) [hci0] 0.203128
= Open Index: 94:E9:79:1A:89:1D [hci0] 0.203128
= Index Info: 94:E9:79:1A:89:1D (Realtek Semiconductor Corporation) [hci0] 0.203129
@ MGMT Open: bluetoothd (privileged) version 1.14 {0x0002} 0.203130
@ MGMT Open: bluetoothd (privileged) version 1.14 {0x0001} 0.203131
@ MGMT Open: btmon (privileged) version 1.14 {0x0003} 0.203160
= bluetoothd: Can't get HIDP connection info 6.279656
< HCI Command: Create Connection (0x01|0x0005) plen 13 #1 [hci0] 6.279733
        Address: 5A:4B:3C:0E:07:B2 (OUI 5A-4B-3C)
        Packet type: 0xcc18
          DM1 may be used
          DH1 may be used
          DM3 may be used
          DH3 may be used
          DM5 may be used
          DH5 may be used
        Page scan repetition mode: R2 (0x02)
        Page scan mode: Mandatory (0x00)
        Clock offset: 0x0000
        Role switch: Allow slave (0x01)
> HCI Event: Command Status (0x0f) plen 4 #2 [hci0] 6.281736
      Create Connection (0x01|0x0005) ncmd 2
        Status: Success (0x00)
> HCI Event: Connect Complete (0x03) plen 11 #3 [hci0] 11.401689
        Status: Page Timeout (0x04)
        Handle: 1
        Address: 5A:4B:3C:0E:07:B2 (OUI 5A-4B-3C)
        Link type: ACL (0x01)
        Encryption: Disabled (0x00)
@ MGMT Event: Connect Failed (0x000d) plen 8 {0x0003} [hci0] 11.401737
        BR/EDR Address: 5A:4B:3C:0E:07:B2 (OUI 5A-4B-3C)
        Status: Connect Failed (0x04)
@ MGMT Event: Connect Failed (0x000d) plen 8 {0x0002} [hci0] 11.401737
        BR/EDR Address: 5A:4B:3C:0E:07:B2 (OUI 5A-4B-3C)
        Status: Connect Failed (0x04)
@ MGMT Event: Connect Failed (0x000d) plen 8 {0x0001} [hci0] 11.401737
        BR/EDR Address: 5A:4B:3C:0E:07:B2 (OUI 5A-4B-3C)
        Status: Connect Failed (0x04)
= bluetoothd: connect error: Host is down (112) 11.403174

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: bluez 5.48-0ubuntu3.1 [modified: lib/systemd/system/bluetooth.service]
ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18
Uname: Linux 4.15.0-46-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Mar 27 16:54:12 2019
InstallationDate: Installed on 2018-05-01 (330 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: ASUSTeK COMPUTER INC. N752VX
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-46-generic root=UUID=1365c792-1a17-47ad-8c37-f738d0645d3d ro debug ignore_loglevel nosplash pcie_aspm=off
SourcePackage: bluez
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/18/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: N752VX.301
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: N752VX
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN752VX.301:bd08/18/2016:svnASUSTeKCOMPUTERINC.:pnN752VX:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnN752VX:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: N
dmi.product.name: N752VX
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
hciconfig:
 hci0: Type: Primary Bus: USB
  BD Address: 94:E9:79:1A:89:1D ACL MTU: 820:8 SCO MTU: 255:16
  UP RUNNING PSCAN
  RX bytes:2240 acl:0 sco:0 events:185 errors:0
  TX bytes:28123 acl:0 sco:0 commands:177 errors:0