How to make my Bluetooth keyboard work with Ubuntu 18.04?

I just bought a new Bluetooth Keyboard, and it won’t work with Ubuntu 18.04. Most of the time, pairing fails. On the rare occasions it worked, they keypress were laggy (delay after the press, or one keypress produces multiple characters) until the connection just dropped.

What I did:

  • Paired the keyboard with my smartphone: it works
  • Paired an Apple Bluetooth keyboard with my ubuntu: it works

I’m not familiar at all with bluetooth troubleshooting.

Using bluetoothctl, I tried to manually trust, pair and connect to the keyboard. Pair fails:

pair 76:11:02:01:00:C0 Attempting to pair with 76:11:02:01:00:C0 Failed to pair: org.bluez.Error.Failed 

Here’s the bluetooth service status:

XPS:~$   systemctl status bluetooth.service ● bluetooth.service - Bluetooth service    Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)    Active: active (running) since Sat 2019-04-20 11:24:42 CEST; 5h 53min ago      Docs: man:bluetoothd(8)  Main PID: 1053 (bluetoothd)    Status: "Running"     Tasks: 1 (limit: 4915)    CGroup: /system.slice/bluetooth.service            └─1053 /usr/lib/bluetooth/bluetoothd  avril 20 13:06:10 Eric-XPS bluetoothd[1053]: connect error: Host is down (112) avril 20 13:06:29 Eric-XPS bluetoothd[1053]: Can't get HIDP connection info avril 20 13:06:35 Eric-XPS bluetoothd[1053]: connect error: Host is down (112) avril 20 13:06:51 Eric-XPS bluetoothd[1053]: Can't get HIDP connection info avril 20 13:06:57 Eric-XPS bluetoothd[1053]: connect error: Host is down (112) avril 20 13:07:09 Eric-XPS bluetoothd[1053]: Can't get HIDP connection info avril 20 13:07:14 Eric-XPS bluetoothd[1053]: connect error: Host is down (112) avril 20 17:03:23 Eric-XPS bluetoothd[1053]: 76:11:02:01:00:C0: error updating services: Input/output error (5) avril 20 17:05:01 Eric-XPS bluetoothd[1053]: Refusing input device connect: No such file or directory (2) avril 20 17:05:01 Eric-XPS bluetoothd[1053]: Refusing connection from 76:11:02:01:00:C0: unknown device 

And here’s the hardware:

Eric-XPS:~$   lsusb Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 002: ID 0b95:7720 ASIX Electronics Corp. AX88772 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 003: ID 0c45:670c Microdia  Bus 001 Device 002: ID 0cf3:e300 Atheros Communications, Inc.  Bus 001 Device 007: ID 0951:1665 Kingston Technology Digital DataTraveler SE9 64GB Bus 001 Device 005: ID 1c4f:0026 SiGma Micro Keyboard Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub 

What do you suggest to troubleshoot and, ultimately, get this working?

Can I connect my Linux box and MacBook Pro to LG 49WL95C-W with just one set of mouse and keyboard?

Just today I received my new LG 49WL95C-W and has been trying without any luck to set it up the way I want, which is:

  • MacBook Pro is connected through USB-C for display/charging.
  • Linux Box is connected through DP.
  • Keyboard and mouse are connected to the available ports on the monitor.
  • Linux box is connected through (???) for mouse/keyboard control?
  • I can control both machines and somehow switch the main source (can be either entirely Linux, or entirely Mac).

I could also do a side-by-side style advertised by LG in addition to my main setup. However, I don’t want to install any of their software. I’m not sure I will be able to achieve any of that given the monitor only has 1 upstream USB port, which is USB-C.

P.S. I saw the review of 49″ Dell monitor that uses the same panel, and from that review it seems trivial to jump between two different machines. I guess this is not the case here?


PC turns on, but Monitor doesn’t detect any signal. Keyboard and mouse also not powered

Specs: Power: Corsair VS 550 watts Motherboard: B450 Aorus M CPU: Amd ryzen 5 GPU: Amd radeon rx 570 (Sapphire pulse) RAM: 1 x Hyper X DDR3 8gb memory

When I press the power button, the usual happens, lights turn on and I can hear the silent hum of the pc but then my Monitor shows a “No Signal Error” and then just stays blank. I also notice connected devices like the keyboard and mouse are not powered on.

I opened it up and checked if anything was loose, but everything was secured in its proper place. The cpu, ram and gpu were all intact, and I haven’t gotten any beep codes from my pc.

All cables are properly connected, the power supply, usb mouse, ps2 keyboard and hdmi cables.

Please help, I cannot find the problem and it’s driving me crazy. Any help is much appreciated

Missing keyboard Shortcuts?

Been using Mac now for about a month and still looking for 2 basic shortcuts.

  1. Windows equivalent for “Delete” – where it deletes the character in front of the cursor. Currently, “delete” on my mac acts more as “backspace”. Tried ⌘ CommandDbut that just creates bookmark on chrome.

  2. Word processing text navigation – windows equivalent of ^ Control + Arrow keys to jump between words, separated by spaces. I’d like to be able to combine this with ^ Control ⇧ Shift + Arrow to select multiple words.

On the Mac, using ^ Control or ⌘ Commandmove entire lines, and ⌘ Command Backspace deletes full lines/sentences.

Macbook Pro’s keyboard and trackpad stopped working

Probably a few months late but anyway My Mac’s keyboard and trackpad completely stopped working. I had tried everything resetting SMC and NVRAM and such, stayed with Apple support call for hours, nothing they did could help me out. I had a boot camp partition on the time, and these things didn’t work over there either. (I’m using external keyboard and mouse ).

A few weeks ago I accidentally nuked my entire hard drive and had to reinstall MacOS from scratch(tiny bit hopeful that this would solve the problem). In the process I installed Lubuntu, and the weird thing is that my internal mouse and keyboard work over there! They just don’t work when I am on my mac OS. (Refind also suddenly stopped showing up on boot but that’s another problem)

This is what I am using System Info Mac Book Pro Early 2015

Is there a keyboard shortcut for “Accept Suggestion” in Google Docs?

I do a lot of reviewing suggestions in Google Docs and I have the cursor “within” suggested text and would like to accept/reject the suggestion with a keyboard shortcut.

From what I can tell there is currently no keyboard shortcut for this, despite there being a menu item, but I am hoping to confirm this and document that it’s missing.

Menu item “Accept Suggestion”

If you use the menu search (option+/) while the cursor is inside a suggestion, an Accept Suggestion item is available, and selecting it does what I expect it to. Unfortunately there is no keyboard shortcut displayed for it.

Other keyboard shortcuts for suggestions

As we can see, there are shortcuts to start reviewing, and to navigate between suggestions, but no way to directly accept or reject them

Screenshot of the keyboard shortcuts for reviewing suggestions and jumping to the next and previous suggestions

Is there a way to create a shortcut for this based on the menu item?

I’m happy to either be proven wrong (“there IS a shortcut”) or to be explained that there is some way to take advantage of the menu item and add a shortcut for myself.