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@centos.org https://lists.centos.org/mailman/listinfo/centos

---

CentOS mailing list CentOS@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?

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@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@centos.org https://lists.centos.org/mailman/listinfo/centos

---

CentOS mailing list CentOS@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@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?

On 09/29/2020 10:01 PM, Bruce Ferrell wrote:

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@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@centos.org https://lists.centos.org/mailman/listinfo/centos

---

CentOS mailing list CentOS@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@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

---

CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

I have tried three different ports, two USB-3 and one USB-2 port...

On 09/29/2020 10:32 PM, John Pierce wrote:

do you have another computer, perhaps a Windows system, you can plug this camera into to see if it works at all?

On Tue, Sep 29, 2020 at 7:22 PM H agents@meddatainc.com wrote:

...

On 09/29/2020 10:01 PM, Bruce Ferrell wrote:

...

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@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@centos.org >> https://lists.centos.org/mailman/listinfo/centos > _______________________________________________ > CentOS mailing list > CentOS@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@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

---

CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

I have tried three different ports, two USB-3 and one USB-2 port...

---

CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

I just did - before seeing your post... I tried it on a Dell laptop also running CentOS 7 and it worked fine. Besides the difference in hardware, the OS on the laptop has not been updated for a number of months, possibly not since late last year, while the OS on the desktop is completely updated.

On 09/29/2020 10:07 PM, John Pierce wrote:

try the camera in a USB 2 port, it should work just fine at usb 2 speeds. most systems, the USB 3 ports hve a 'blue' tongue, while the 2 ports are black or another color.

On Tue, Sep 29, 2020 at 6:50 PM H agents@meddatainc.com 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@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@centos.org https://lists.centos.org/mailman/listinfo/centos

---

CentOS mailing list CentOS@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@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?

---

CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

Just tried a USB 2 port with a similar outcome:

kernel: usb 1-9: can't read configurations, error -32 kernel: usb usb1-port9: attempt power cycle kernel: usb 1-9: new high-speed USB device number 23 using xhci_hcd kernel: usb 1-9: unable to read config index 0 descriptor/all kernel: usb 1-9: can't read configurations, error -32 kernel: usb 1-9: new high-speed USB device number 24 using xhci_hcd kernel: usb 1-9: unable to read config index 0 descriptor/all kernel: usb 1-9: can't read configurations, error -32 kernel: usb usb1-port9: unable to enumerate USB device

I also have Logitech Bluetooth mouse, an external harddisk, a Belkin USB-serial adapter for my UPS, and a Canon scanner attached to other USB ports, all working fine.

On 09/29/2020 11:11 PM, Bruce Ferrell wrote:

On 9/29/20 7:21 PM, H wrote:

...

kernel: usb 1-9: unable to read config index 0 descriptor/all

Those error messages mean that the device isn't responding to the Get-Descriptor request.

I think a step back and checking the usb subsystem, in general, might be a good idea:

Let's start with the full output of

lspci

and follow up with the full output of

lsusb

and lsmod

All commands should be run as root

---

CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

This is lsusb:

Bus 002 Device 002: ID 0bc2:231a Seagate RSS LLC Expansion Portable Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver Bus 001 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

and lspci:

00:00.0 Host bridge: Intel Corporation Sky Lake-E DMI3 Registers (rev 04) 00:04.0 System peripheral: Intel Corporation Sky Lake-E CBDMA Registers (rev 04) 00:04.1 System peripheral: Intel Corporation Sky Lake-E CBDMA Registers (rev 04) 00:04.2 System peripheral: Intel Corporation Sky Lake-E CBDMA Registers (rev 04) 00:04.3 System peripheral: Intel Corporation Sky Lake-E CBDMA Registers (rev 04) 00:04.4 System peripheral: Intel Corporation Sky Lake-E CBDMA Registers (rev 04) 00:04.5 System peripheral: Intel Corporation Sky Lake-E CBDMA Registers (rev 04) 00:04.6 System peripheral: Intel Corporation Sky Lake-E CBDMA Registers (rev 04) 00:04.7 System peripheral: Intel Corporation Sky Lake-E CBDMA Registers (rev 04) 00:05.0 System peripheral: Intel Corporation Sky Lake-E MM/Vt-d Configuration Registers (rev 04) 00:05.2 System peripheral: Intel Corporation Sky Lake-E RAS (rev 04) 00:05.4 PIC: Intel Corporation Sky Lake-E IOAPIC (rev 04) 00:08.0 System peripheral: Intel Corporation Sky Lake-E Ubox Registers (rev 04) 00:08.1 Performance counters: Intel Corporation Sky Lake-E Ubox Registers (rev 04) 00:08.2 System peripheral: Intel Corporation Sky Lake-E Ubox Registers (rev 04) 00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller 00:14.2 Signal processing controller: Intel Corporation 200 Series PCH Thermal Subsystem 00:16.0 Communication controller: Intel Corporation 200 Series PCH CSME HECI #1 00:16.3 Serial controller: Intel Corporation Device a2bd 00:17.0 RAID bus controller: Intel Corporation C600/X79 series chipset SATA RAID Controller 00:1e.0 Signal processing controller: Intel Corporation 200 Series/Z370 Chipset Family Serial IO UART Controller #0 00:1f.0 ISA bridge: Intel Corporation C422 Chipset LPC/eSPI Controller 00:1f.2 Memory controller: Intel Corporation 200 Series/Z370 Chipset Family Power Management Controller 00:1f.3 Audio device: Intel Corporation 200 Series PCH HD Audio 00:1f.4 SMBus: Intel Corporation 200 Series/Z370 Chipset Family SMBus Controller 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-LM 16:05.0 System peripheral: Intel Corporation Sky Lake-E VT-d (rev 04) 16:05.2 System peripheral: Intel Corporation Sky Lake-E RAS Configuration Registers (rev 04) 16:05.4 PIC: Intel Corporation Sky Lake-E IOxAPIC Configuration Registers (rev 04) 16:08.0 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:08.1 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:08.2 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:08.3 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:08.4 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:08.5 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:08.6 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:08.7 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:09.0 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:09.1 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0e.0 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0e.1 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0e.2 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0e.3 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0e.4 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0e.5 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0e.6 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0e.7 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0f.0 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:0f.1 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:1d.0 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:1d.1 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:1d.2 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:1d.3 System peripheral: Intel Corporation Sky Lake-E CHA Registers (rev 04) 16:1e.0 System peripheral: Intel Corporation Sky Lake-E PCU Registers (rev 04) 16:1e.1 System peripheral: Intel Corporation Sky Lake-E PCU Registers (rev 04) 16:1e.2 System peripheral: Intel Corporation Sky Lake-E PCU Registers (rev 04) 16:1e.3 System peripheral: Intel Corporation Sky Lake-E PCU Registers (rev 04) 16:1e.4 System peripheral: Intel Corporation Sky Lake-E PCU Registers (rev 04) 16:1e.5 System peripheral: Intel Corporation Sky Lake-E PCU Registers (rev 04) 16:1e.6 System peripheral: Intel Corporation Sky Lake-E PCU Registers (rev 04) 64:00.0 PCI bridge: Intel Corporation Sky Lake-E PCI Express Root Port A (rev 04) 64:05.0 System peripheral: Intel Corporation Sky Lake-E VT-d (rev 04) 64:05.2 System peripheral: Intel Corporation Sky Lake-E RAS Configuration Registers (rev 04) 64:05.4 PIC: Intel Corporation Sky Lake-E IOxAPIC Configuration Registers (rev 04) 64:08.0 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:09.0 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0a.0 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0a.1 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0a.2 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0a.3 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0a.4 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0a.5 System peripheral: Intel Corporation Sky Lake-E LM Channel 1 (rev 04) 64:0a.6 System peripheral: Intel Corporation Sky Lake-E LMS Channel 1 (rev 04) 64:0a.7 System peripheral: Intel Corporation Sky Lake-E LMDP Channel 1 (rev 04) 64:0b.0 System peripheral: Intel Corporation Sky Lake-E DECS Channel 2 (rev 04) 64:0b.1 System peripheral: Intel Corporation Sky Lake-E LM Channel 2 (rev 04) 64:0b.2 System peripheral: Intel Corporation Sky Lake-E LMS Channel 2 (rev 04) 64:0b.3 System peripheral: Intel Corporation Sky Lake-E LMDP Channel 2 (rev 04) 64:0c.0 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0c.1 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0c.2 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0c.3 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0c.4 System peripheral: Intel Corporation Sky Lake-E Integrated Memory Controller (rev 04) 64:0c.5 System peripheral: Intel Corporation Sky Lake-E LM Channel 1 (rev 04) 64:0c.6 System peripheral: Intel Corporation Sky Lake-E LMS Channel 1 (rev 04) 64:0c.7 System peripheral: Intel Corporation Sky Lake-E LMDP Channel 1 (rev 04) 64:0d.0 System peripheral: Intel Corporation Sky Lake-E DECS Channel 2 (rev 04) 64:0d.1 System peripheral: Intel Corporation Sky Lake-E LM Channel 2 (rev 04) 64:0d.2 System peripheral: Intel Corporation Sky Lake-E LMS Channel 2 (rev 04) 64:0d.3 System peripheral: Intel Corporation Sky Lake-E LMDP Channel 2 (rev 04) 65:00.0 VGA compatible controller: NVIDIA Corporation GP107GL [Quadro P620] (rev a1) 65:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1) b2:05.0 System peripheral: Intel Corporation Sky Lake-E VT-d (rev 04) b2:05.2 System peripheral: Intel Corporation Sky Lake-E RAS Configuration Registers (rev 04) b2:05.4 PIC: Intel Corporation Sky Lake-E IOxAPIC Configuration Registers (rev 04) b2:12.0 Performance counters: Intel Corporation Sky Lake-E M3KTI Registers (rev 04) b2:12.1 Performance counters: Intel Corporation Sky Lake-E M3KTI Registers (rev 04) b2:12.2 System peripheral: Intel Corporation Sky Lake-E M3KTI Registers (rev 04) b2:15.0 System peripheral: Intel Corporation Sky Lake-E M2PCI Registers (rev 04) b2:16.0 System peripheral: Intel Corporation Sky Lake-E M2PCI Registers (rev 04) b2:16.4 System peripheral: Intel Corporation Sky Lake-E M2PCI Registers (rev 04)

Finally lsmod:

Module                  Size  Used by binfmt_misc            17468  1 ext4                  584094  1 mbcache                14958  1 ext4 jbd2                  107478  1 ext4 uas                    22445  1 usb_storage            66718  1 uas zfs                  3986613  2 zunicode              331170  1 zfs zlua                  147429  1 zfs zcommon                89551  1 zfs znvpair                94388  2 zfs,zcommon zavl                   15167  1 zfs icp                   301854  1 zfs spl                   104299  5 icp,zfs,zavl,zcommon,znvpair btrfs                1074009  0 raid6_pq              102527  1 btrfs xor                    21411  1 btrfs fuse                  100350  3 ipt_MASQUERADE         12678  1 nf_nat_masquerade_ipv4    13463  1 ipt_MASQUERADE nf_conntrack_netlink    36396  0 xt_addrtype            12676  2 br_netfilter           22256  0 overlay                91659  0 ip6t_rpfilter          12595  1 ip6t_REJECT            12625  2 nf_reject_ipv6         13717  1 ip6t_REJECT ipt_REJECT             12541  2 nf_reject_ipv4         13373  1 ipt_REJECT xt_conntrack           12760  12 ebtable_nat            12807  1 ebtable_broute         12731  1 bridge                151336  2 br_netfilter,ebtable_broute stp                    12976  1 bridge llc                    14552  2 stp,bridge ip6table_nat           12864  1 nf_conntrack_ipv6      18935  7 nf_defrag_ipv6         35104  1 nf_conntrack_ipv6 nf_nat_ipv6            14131  1 ip6table_nat ip6table_mangle        12700  1 ip6table_security      12710  1 ip6table_raw           12683  1 iptable_nat            12875  1 nf_conntrack_ipv4      15053  7 nf_defrag_ipv4         12729  1 nf_conntrack_ipv4 nf_nat_ipv4            14115  1 iptable_nat nf_nat                 26583  3 nf_nat_ipv4,nf_nat_ipv6,nf_nat_masquerade_ipv4 iptable_mangle         12695  1 iptable_security       12705  1 iptable_raw            12678  1 nf_conntrack          139264  8 nf_nat,nf_nat_ipv4,nf_nat_ipv6,xt_conntrack,nf_nat_masquerade_ipv4,nf_conntrack_netlink,nf_conntrack_ipv4,nf_conntrack_ipv6 ip_set                 45799  0 nfnetlink              14519  3 ip_set,nf_conntrack_netlink ebtable_filter         12827  1 ebtables               35009  3 ebtable_broute,ebtable_nat,ebtable_filter ip6table_filter        12815  1 ip6_tables             26912  5 ip6table_filter,ip6table_mangle,ip6table_security,ip6table_nat,ip6table_raw iptable_filter         12810  1 vfat                   17461  1 fat                    65950  1 vfat snd_hda_codec_hdmi     52340  1 mei_wdt                13426  0 skx_edac               13578  0 nfit                   55639  1 skx_edac libnvdimm             159680  1 nfit intel_powerclamp       14451  0 coretemp               13444  0 snd_hda_codec_realtek   112353  1 intel_rapl             19451  0 iosf_mbi               15582  1 intel_rapl kvm_intel             188688  0 snd_hda_codec_generic    74631  1 snd_hda_codec_realtek kvm                   636965  1 kvm_intel snd_hda_intel          40390  8 snd_hda_codec         136355  4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel snd_hda_core           91007  5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel snd_hwdep              13608  1 snd_hda_codec irqbypass              13503  1 kvm snd_seq                62774  0 snd_seq_device         14356  1 snd_seq intel_wmi_thunderbolt    12826  0 snd_pcm               101339  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core pcspkr                 12718  0 wdat_wdt               13590  0 snd_timer              34110  2 snd_pcm,snd_seq snd                    83987  26 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device i2c_i801               22736  0 soundcore              15047  1 snd idma64                 17483  0 virt_dma               13326  1 idma64 pl2303                 19203  1 joydev                 17389  0 mei_me                 32848  0 sg                     40719  0 mei                    91150  3 mei_wdt,mei_me tpm_crb                13639  0 ip_tables              27126  5 iptable_security,iptable_filter,iptable_mangle,iptable_nat,iptable_raw xfs                   997681  3 libcrc32c              12644  3 xfs,nf_nat,nf_conntrack dm_crypt               27346  2 drbg                   30186  1 ansi_cprng             12989  0 raid1                  40017  1 sd_mod                 46281  5 crc_t10dif             12912  1 sd_mod crct10dif_generic      12647  0 nouveau              1898794  2 video                  24538  1 nouveau mxm_wmi                13021  1 nouveau i2c_algo_bit           13413  1 nouveau drm_kms_helper        186531  1 nouveau syscopyarea            12529  1 drm_kms_helper sysfillrect            12701  1 drm_kms_helper sysimgblt              12640  1 drm_kms_helper fb_sys_fops            12703  1 drm_kms_helper ttm                    96673  1 nouveau drm                   456166  5 ttm,drm_kms_helper,nouveau crct10dif_pclmul       14307  1 crct10dif_common       12595  3 crct10dif_pclmul,crct10dif_generic,crc_t10dif crc32_pclmul           13133  0 e1000e                248599  0 crc32c_intel           22094  2 ghash_clmulni_intel    13273  0 ahci                   34056  7 aesni_intel           189456  4 libahci                31992  1 ahci glue_helper            13990  1 aesni_intel lrw                    13286  1 aesni_intel gf128mul               15139  1 lrw ablk_helper            13597  1 aesni_intel cryptd                 21190  5 ghash_clmulni_intel,aesni_intel,ablk_helper libata                243094  2 ahci,libahci serio_raw              13434  0 ptp                    23551  1 e1000e drm_panel_orientation_quirks    17180  1 drm pps_core               19057  1 ptp wmi                    21636  3 mxm_wmi,nouveau,intel_wmi_thunderbolt dm_mirror              22289  0 dm_region_hash         20813  1 dm_mirror dm_log                 18411  2 dm_region_hash,dm_mirror dm_mod                124501  16 dm_log,dm_mirror,dm_crypt

My computer skills are not enough to interpret the above...

Thank you.

On October 1, 2020 11:58:11 AM EDT, Bruce Ferrell bferrell@baywinds.org wrote:

On 9/30/20 8:52 AM, H wrote:

...

00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset

Family USB 3.0 xHCI Controller My system has these:

00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)

lspci -s 00:14.0 -v 00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) (prog-if 30 [XHCI])         Subsystem: ASUSTeK Computer Inc. Device 201f         Flags: bus master, medium devsel, latency 0, IRQ 25         Memory at dd600000 (64-bit, non-prefetchable) [size=64K]         Capabilities: [70] Power Management version 2         Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+         Kernel driver in use: xhci_hcd         Kernel modules: xhci_pci

lspci -s 00:1a.0 -v 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) (prog-if 20 [EHCI])         Subsystem: ASUSTeK Computer Inc. Device 201f         Flags: bus master, medium devsel, latency 0, IRQ 16         Memory at dd618000 (32-bit, non-prefetchable) [size=1K]         Capabilities: [50] Power Management version 2         Capabilities: [58] Debug port: BAR=1 offset=00a0         Capabilities: [98] PCI Advanced Features         Kernel driver in use: ehci-pci         Kernel modules: ehci_pci

lspci -s 00:1d.0 -v 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05) (prog-if 20 [EHCI])         Subsystem: ASUSTeK Computer Inc. Device 201f         Flags: bus master, medium devsel, latency 0, IRQ 23         Memory at dd617000 (32-bit, non-prefetchable) [size=1K]         Capabilities: [50] Power Management version 2         Capabilities: [58] Debug port: BAR=1 offset=00a0         Capabilities: [98] PCI Advanced Features         Kernel driver in use: ehci-pci         Kernel modules: ehci_pci

These are my kernel modules:

lsmod | grep usb btusb                  53248  0 btrtl                  16384  1 btusb btbcm                  16384  1 btusb btintel                20480  1 btusb bluetooth             589824  41 btrtl,btintel,bnep,btbcm,rfcomm,btusb snd_usb_audio         278528  1 snd_usbmidi_lib        36864  1 snd_usb_audio snd_hwdep              16384  2 snd_hda_codec,snd_usb_audio snd_rawmidi            40960  1 snd_usbmidi_lib snd_pcm               143360  5 snd_hda_intel,snd_hda_codec,snd_usb_audio,snd_hda_core,snd_hda_codec_hdmi snd                    98304  23 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_usb_audio,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_usbmidi_lib,snd_seq_device,snd_hda_codec_realtek,snd_pcm usbhid                 57344  0 usbcore               290816  9 uvcvideo,usbhid,snd_usb_audio,ehci_hcd,xhci_pci,snd_usbmidi_lib,btusb,xhci_hcd,ehci_pci

This line is important:

usbcore               290816  9 uvcvideo,usbhid,snd_usb_audio,ehci_hcd,xhci_pci,snd_usbmidi_lib,btusb,xhci_hcd,ehci_pci

Notice the last two entries:  xhci_hcd and ehci_pci

Those correspond to:

for my two usb 2 controllers:

Kernel driver in use: xhci_hcd         Kernel modules: xhci_pci

for my single usb 3 controller:

Kernel driver in use: xhci_hcd         Kernel modules: xhci_pci

from your lspci:

00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller

This is the sole USB controller in your system and it's a USB 3 controller

so... in your case let's do:

sudo lspci -s 00:14.0 -v

then try:

sudo modprobe usbcore

and repeat:

sudo lspci -s 00:14.0 -v

see if the Kernel driver/module lines change.  If they do, plug the camera in and check for it to be recognized in lsusb

---

CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

Thank you. Unfortunately I will not have access to this computer for some time, will let you know when I can try what you suggest.

On 11/13/2020 12:40 PM, H wrote:

On 10/02/2020 07:38 AM, H wrote:

...

On October 1, 2020 11:58:11 AM EDT, Bruce Ferrell bferrell@baywinds.org wrote:

...

On 9/30/20 8:52 AM, H wrote:

...

00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset

Family USB 3.0 xHCI Controller My system has these:

00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)

lspci -s 00:14.0 -v 00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) (prog-if 30 [XHCI])         Subsystem: ASUSTeK Computer Inc. Device 201f         Flags: bus master, medium devsel, latency 0, IRQ 25         Memory at dd600000 (64-bit, non-prefetchable) [size=64K]         Capabilities: [70] Power Management version 2         Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+         Kernel driver in use: xhci_hcd         Kernel modules: xhci_pci

lspci -s 00:1a.0 -v 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) (prog-if 20 [EHCI])         Subsystem: ASUSTeK Computer Inc. Device 201f         Flags: bus master, medium devsel, latency 0, IRQ 16         Memory at dd618000 (32-bit, non-prefetchable) [size=1K]         Capabilities: [50] Power Management version 2         Capabilities: [58] Debug port: BAR=1 offset=00a0         Capabilities: [98] PCI Advanced Features         Kernel driver in use: ehci-pci         Kernel modules: ehci_pci

lspci -s 00:1d.0 -v 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05) (prog-if 20 [EHCI])         Subsystem: ASUSTeK Computer Inc. Device 201f         Flags: bus master, medium devsel, latency 0, IRQ 23         Memory at dd617000 (32-bit, non-prefetchable) [size=1K]         Capabilities: [50] Power Management version 2         Capabilities: [58] Debug port: BAR=1 offset=00a0         Capabilities: [98] PCI Advanced Features         Kernel driver in use: ehci-pci         Kernel modules: ehci_pci

These are my kernel modules:

lsmod | grep usb btusb                  53248  0 btrtl                  16384  1 btusb btbcm                  16384  1 btusb btintel                20480  1 btusb bluetooth             589824  41 btrtl,btintel,bnep,btbcm,rfcomm,btusb snd_usb_audio         278528  1 snd_usbmidi_lib        36864  1 snd_usb_audio snd_hwdep              16384  2 snd_hda_codec,snd_usb_audio snd_rawmidi            40960  1 snd_usbmidi_lib snd_pcm               143360  5 snd_hda_intel,snd_hda_codec,snd_usb_audio,snd_hda_core,snd_hda_codec_hdmi snd                    98304  23 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_usb_audio,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_usbmidi_lib,snd_seq_device,snd_hda_codec_realtek,snd_pcm usbhid                 57344  0 usbcore               290816  9 uvcvideo,usbhid,snd_usb_audio,ehci_hcd,xhci_pci,snd_usbmidi_lib,btusb,xhci_hcd,ehci_pci

This line is important:

usbcore               290816  9 uvcvideo,usbhid,snd_usb_audio,ehci_hcd,xhci_pci,snd_usbmidi_lib,btusb,xhci_hcd,ehci_pci

Notice the last two entries:  xhci_hcd and ehci_pci

Those correspond to:

for my two usb 2 controllers:

Kernel driver in use: xhci_hcd         Kernel modules: xhci_pci

for my single usb 3 controller:

Kernel driver in use: xhci_hcd         Kernel modules: xhci_pci

from your lspci: 00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller

This is the sole USB controller in your system and it's a USB 3 controller

so... in your case let's do:

sudo lspci -s 00:14.0 -v

then try:

sudo modprobe usbcore

and repeat:

sudo lspci -s 00:14.0 -v

see if the Kernel driver/module lines change.  If they do, plug the camera in and check for it to be recognized in lsusb

---

CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

Thank you. Unfortunately I will not have access to this computer for some time, will let you know when I can try what you suggest. _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos

Hmm, did not have an opportunity to try your suggestion at the end of message until today - after I did a BIOS update. The BIOS update, by the way, resulted in the complete loss of recognition of the Logitech camera, regardless of which USB ports I am trying...

Anyway, your suggestion above follows: #lspci -s 00:14.0 -v 00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller (prog-if 30 [XHCI])     Subsystem: Lenovo Device 103c     Flags: bus master, medium devsel, latency 0, IRQ 28, NUMA node 0     Memory at 43ffff10000 (64-bit, non-prefetchable) [size=64K]     Capabilities: [70] Power Management version 2     Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+     Kernel driver in use: xhci_hcd

# modprobe usbcore # lspci -s 00:14.0 -v 00:14.0 USB controller: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller (prog-if 30 [XHCI])     Subsystem: Lenovo Device 103c     Flags: bus master, medium devsel, latency 0, IRQ 28, NUMA node 0     Memory at 43ffff10000 (64-bit, non-prefetchable) [size=64K]     Capabilities: [70] Power Management version 2     Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+     Kernel driver in use: xhci_hcd

Here is the output from tail -f /var/log/messages:

Nov 13 12:41:35 t kernel: usb 1-7: new high-speed USB device number 26 using xhci_hcd Nov 13 12:41:35 t kernel: usb 1-7: unable to read config index 0 descriptor/all Nov 13 12:41:35 t kernel: usb 1-7: can't read configurations, error -32 Nov 13 12:41:35 t kernel: usb 1-7: new high-speed USB device number 27 using xhci_hcd Nov 13 12:41:35 t kernel: usb 1-7: unable to read config index 0 descriptor/all Nov 13 12:41:35 t kernel: usb 1-7: can't read configurations, error -32 Nov 13 12:41:35 t kernel: usb usb1-port7: attempt power cycle Nov 13 12:41:36 t kernel: usb 1-7: new high-speed USB device number 28 using xhci_hcd Nov 13 12:41:36 t kernel: usb 1-7: unable to read config index 0 descriptor/all Nov 13 12:41:36 t kernel: usb 1-7: can't read configurations, error -32 Nov 13 12:41:36 t kernel: usb 1-7: new high-speed USB device number 29 using xhci_hcd Nov 13 12:41:36 t kernel: usb 1-7: unable to read config index 0 descriptor/all Nov 13 12:41:36 t kernel: usb 1-7: can't read configurations, error -32 Nov 13 12:41:36 t kernel: usb usb1-port7: unable to enumerate USB device

With the above said, there is another issue that has been vexing me, I have an external USB harddisk and when it is attached the computer fails to boot the OS (CentOS 7.8.2003). After the Lenovo logo all I see is a blinking underscore on the screen. Disconnecting the harddisk at this time has no effect. I have to have the harddisk disconnected when I boot and then connect it, after which it works fine. The only noteworthy thing I am aware of is that is encrypted using LUKS so I have to enter a passphrase once it is connected.