Ubuntu - mouse does not work in play mode,Ubuntu - mouse doesn't work in play mode

when I enter play mode in Unity editor my mouse suddenly stops working. On Windows 10 everything works perfectly but when I switched to Ubuntu I came across this kind of problem. I am using Ubuntu 21.04 (beta), Unity 2019.4.24f1 and Lenovo Legion 5. I know that there was a bunch of problems with touchpad in Lenovo Legion 5 but with my version of Ubuntu and Kernel it works smoothly (can't say the same about brightness). Camera movement is provided with cinemachine script,when I enter play mode in Unity editor my mouse suddenly stops working. On Windows 10 everything works perfectly but when I switched to Ubuntu I came across this kind of problem. I am using Ubuntu 21.04 (beta), Unity 2019.4.24f1 and Lenovo Legion 5. I know that there was a bunch of problems with touchpad in Lenovo Legion 5 but with my version of Ubuntu and Kernel it works smoothly (can't say the same about brightness).