Windows 10: No USB devices detected for forwarding

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  • #30313
    AvatarMagellanTX
    Participant

    I’m using NoMachine 6.12.3 to connect from Windows 10 (physical) to CentOS 8.2 (virtual/Wayland) but, on the Windows 10 side, the client does not enumerate any USB devices. Is this a known issue?

    In device manager, I have 3 NoMachine USB Host Adapters
    In services, the NoMachine Device Server is running

    I’ve attached some screenshots and the log files, hopefully it helps point to the issue.

    Thanks!!

     

     

     

     

    #30341
    AvatarGiorgi-G.
    Contributor

    Hi,

    Windows side logs look good, and the USB forwarding module works well on that side.

    Most probably you have some issue with the remote, Linux side. Please check this article: https://www.nomachine.com/AR12J00658

    As well as please attach logs from the Linux side if possible.

    #30370
    AvatarMagellanTX
    Participant

    You’re right, the USB module has not been built on the Linux side. However, I can’t seem to compile them.

    As soon as I execute make, it stops with `error: macro “access_ok” passed 3 arguments, but takes just 2
    if(!access_ok(VERIFY_READ, (void *)iso, iso_count * sizeof(struct eveusb_vhci_ioc_iso_packet_giveback)))`

    The target machine is CentOS Linux 8.2.2004 (core) and I’ve installed kernel-devel-4.18.0-193.28.1.el8_2.x86_64.rpm

    #30419
    AvatarDawid.G
    Participant

    It seems that the issue is caused by the newest Linux Kernel update for RHEL OSes.

    Please replace the file with the one you receive (via mail to the address you used to register ) in the /usr/NX/share/src/nxusb/ directory and try to build it again.

    I hope it’ll help.

    The Trouble Report to track the fix can be found at the following link: https://www.nomachine.com/TR11R09915

    #30421
    AvatarMagellanTX
    Participant

    Thank you! Definitely getting closer. I was able to compile the driver (compiled as SU not SUDO) and now on the Windows side I can see all my USB devices. However, when I try to share, it just spins for about 15 seconds and then errors out. After compiling, I did restart the nxserver and the entire machine.

    If I attach a USB device to the Linux side, I do not see it on the Windows side strangely enough. I’ve tried USB 2.0/3.0 drives.

    lsmod | grep nxusb     never returns anything.

    I’ve attached the logs from both sides but no nxusb.log is created on the Linux side.

    Thanks again for the help!

    #30430
    AvatarDawid.G
    Participant

    Hello, could you also include system logs using journalctl command from your Linux machine? It would help a lot.

    Thanks

    #30439
    AvatarMagellanTX
    Participant

    I’ve rebooted the machine, tried sharing a USB drive (which failed) and then captured the journalctl logs.

    Thanks for the help!

    Attachments:
    #30480
    AvatarDawid.G
    Participant

    Could you please try to load nxusb module by using the command “insmod -v /usr/NX/bin/drivers/nxusb.ko/” and send us the output?

    Thanks a lot

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