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.
On Tue, Sep 29, 2020 at 10:30 AM H <agents at meddatainc.com> 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. > >absolutely nothing at the end of dmesg when you plug it in ? -- -john r pierce recycling used bits in santa cruz
On Tue, 29 Sep 2020 at 13:31, H <agents at meddatainc.com> 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. > >Does anything show up when the device is plugged in. There should be info in dmesg when a device is added or removed, even if the kernel does not recognize it. If you do not have that, then the USB port or device is not working. The lines will say something like "New USB device found, idVendor=<>, idProduct=<>, bcdDevice=<>. That data is independent of your drivers. Also the command lsusb and /proc/bus/input/devices can give data.> Thanks. > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos >-- Stephen J Smoogen.
On Tue, 29 Sep 2020 13:30:30 -0400 H wrote:> Just installed the above USB webcam but it is not recognized by dmesg | grep > usb, nor does Zoom recognize it.tail -f /var/log/messages plug in the camera What do you see? -- Can we uninstall 2020 and install it again? This one has a virus. MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com
On 9/29/20 12:30 PM, 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. >I have a C270 that I use .. it just works. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 195 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20200929/c996dfa2/attachment.sig>
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
On 09/29/2020 01:39 PM, Frank Cox wrote:> On Tue, 29 Sep 2020 13:30:30 -0400 > H wrote: > >> Just installed the above USB webcam but it is not recognized by dmesg | grep >> usb, nor does Zoom recognize it. > tail -f /var/log/messages > > plug in the camera > > What do you see? >kernel: usb 1-14: new high-speed USB device number 13 using xhci_hcd kernel: usb 1-14: unable to read config index 0 descriptor/all kernel: usb 1-14: can't read configurations, error -32 kernel: usb 1-14: new high-speed USB device number 14 using xhci_hcd kernel: usb 1-14: unable to read config index 0 descriptor/all kernel: usb 1-14: can't read configurations, error -32 kernel: usb usb1-port14: attempt power cycle kernel: usb 1-14: new high-speed USB device number 15 using xhci_hcd kernel: usb 1-14: unable to read config index 0 descriptor/all kernel: usb 1-14: can't read configurations, error -75 kernel: usb 1-14: new high-speed USB device number 16 using xhci_hcd kernel: usb 1-14: unable to read config index 0 descriptor/all kernel: usb 1-14: can't read configurations, error -32 kernel: usb usb1-port14: unable to enumerate USB device
On 09/29/2020 01:38 PM, Stephen John Smoogen wrote:> On Tue, 29 Sep 2020 at 13:31, H <agents at meddatainc.com> 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. >> >> > Does anything show up when the device is plugged in. There should be info > in dmesg when a device is added or removed, even if the kernel does not > recognize it. If you do not have that, then the USB port or device is not > working. The lines will say something like "New USB device found, > idVendor=<>, idProduct=<>, bcdDevice=<>. That data is independent of your > drivers. > > Also the command lsusb and /proc/bus/input/devices can give data. > > > > > >> Thanks. >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos >> >It does not show up.
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/centosI'll bite, systemd and its interaction with udev is beyond my paygrade. How do I investigate this?