I recently installed Zorin OS 17.1 on my machine and also have Linux Mint 22 installed. In Mint, my Logitech bluetooth keyboard and mouse set were successfully connected and I am actively using them.
However, in Zorin, even when pairing, connecting and trusting are successful and the devices appear connected, they do not work as if they were not connected. I tried to install blueman, the default manager in Mint, and the problem persists.
My keyboard is a Logitech K850 and my mouse is a Logitech M720.
My laptop is Lenovo ThinkPad P15v Gen 3
How can I solve this problem? I have been curious about the user experience of Zorin for a while, and I want to try it.
Hi and welcome. Try removing the unifying bluetooth dongle while the machine is powered down. Boot into Zorin, attach the unifying dongle and see if the following advice works from LM forum:
Logitech K850 and Logitech M720 not connecting in Ubuntu 22.04
Based on the search results and symptoms described, it appears that the Logitech K850 keyboard and M720 mouse are not connecting properly in Ubuntu 22.04. Since both devices use Logitech’s Unifying technology, troubleshooting steps for the M720 mouse may also apply to the K850 keyboard.
To begin, ensure that the Unifying receiver (USB dongle) is properly installed and configured. You can check this by:
Plugging the receiver into a USB port and verifying that it’s recognized by the system.
Running lsusb in the terminal to check for the receiver’s device ID (e.g., Logitech USB Receiver).
Installing the Logitech Unifying software (ltunify) using apt-get or apt (if not already installed): sudo apt-get install logitech-unifying.
For pairing the devices:
Make sure Bluetooth is enabled on your system.
Put the K850 keyboard into pairing mode by pressing and holding the Fn button (or the pairing button, depending on the keyboard model) until the LED indicators start flashing.
Use the bluez command-line tool to pair the keyboard:
sudo bluez-simple-agent hci0
This will prompt you for the device’s PIN. If you don’t see the PIN prompt, try running the command again, and then manually put the keyboard into pairing mode (step 2). 4. Once paired, you can verify the connection using hcitool info:
hcitool info <device_address>
Replace <device_address> with the actual address displayed during the pairing process.
For the M720 mouse, you can refer to the Ask Ubuntu question linked in the search results for additional troubleshooting steps, such as updating the Unifying software or disabling and re-enabling the mouse.
I’m trying to connect directly via Bluetooth without using a dongle. However, I also tried connecting with the dongle attached, but it still didn’t work. lsusb detects the dongle, and Bluetooth shows it as connected. I also successfully entered the keyboard PIN.
I’ve also attempted to connect using the bluetoothctl command in the console, with the same result. I checked the BIOS for any settings that might be affecting this, especially related to the dongle, but couldn’t find anything unusual.
This is rfkill list all result:
0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
It seems really strange—do you have any other suggestions?
I agree, and can be proved by simply using 1 of the 2, if it works it means that both together are interfering each other. They might be using the same signal frequency.
I don't have any bluetooth kit myself, just wireless keyboard and mouse that is swappable between bluetooth (for Mac) and wireless for Windows/Linux. The only other thing I can suggest is this: