On 9/29/20 6:50 PM, H wrote: > On 09/29/2020 09:09 PM, John Pierce wrote: >> do other USB 3 (XHCI) devices work on this system ? >> >> On Tue, Sep 29, 2020 at 5:27 PM H <agents at meddatainc.com> wrote: >> >>> On 09/29/2020 02:11 PM, Bruce Ferrell wrote: >>>> Try >>>> >>>> lsusb -v >>>> >>>> and >>>> >>>> sudo dmesg >>>> >>>> ... Be aware, systemd deals with udev and it may be malfunctioning >>>> >>>> >>>> On 9/29/2020 10:30 AM, H wrote: >>>>> Just installed the above USB webcam but it is not recognized by dmesg | >>> grep usb, nor does Zoom recognize it. I was under the understanding it >>> should not require a driver, or? >>>>> I am running CentOS 7. >>>>> >>>>> Thanks. >>>>> >>>>> _______________________________________________ >>>>> CentOS mailing list >>>>> CentOS at centos.org >>>>> https://lists.centos.org/mailman/listinfo/centos >>>> _______________________________________________ >>>> CentOS mailing list >>>> CentOS at centos.org >>>> https://lists.centos.org/mailman/listinfo/centos >>> I'll bite, systemd and its interaction with udev is beyond my paygrade. >>> How do I investigate this? >>> >>> _______________________________________________ >>> CentOS mailing list >>> CentOS at centos.org >>> https://lists.centos.org/mailman/listinfo/centos >>> > Not sure I have any. I tried two different USB 3.0 connectors with the same result. > > Is there any way I can test this? I just checked my C922 it's plugged into a USB2 port and works fine Try ANY usb device in your ports and see if it shows up in lsusb You may have a bad port