Unreal Editor does not start in VR

Hi ,
I am completely new to UE and i am trying to use it for VR development, i installed the 4.22 version on Ubuntu 16.04 with the steamvr 1.5.16 version.
when i start a new project with the VR template and i start the VR preview the editor does not communicate with steamVR .
what i do is :
i run steam , steamVR after that i run the UE Editor , and i keep always having same problem .
any one having same problem ?

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