How about kernel modules, do you see anything with xhci? lsmod | grep xhci
On Sat, Nov 9, 2024 at 5:20 PM American Citizen <[email protected]> wrote: > > Ben: > > I carefully followed your directions. > > When I plugged in my USB flash drive into a USB cable, nothing happened, > nothing! > > I pulled out my Logitech headphones connected with a USB 2.0 port and > dmesg -w caught that > > But I am plugging my USB stick into the two USB 3.0 sockets and NOTHING > comes up > > The Z420 workstation has front panel USB socket.. they are from top to > bottom: USB2, USB3, USB3 > > When I pick the top USB2 slot, the following dmesg messages come up > > [3225340.916530] usb 1-1.3: new high-speed USB device number 8 using > ehci-pci > [3225341.037689] usb 1-1.3: New USB device found, idVendor=0781, > idProduct=5597, bcdDevice= 1.00 > [3225341.037701] usb 1-1.3: New USB device strings: Mfr=1, Product=2, > SerialNumber=3 > [3225341.037705] usb 1-1.3: Product: SanDisk 3.2Gen1 > [3225341.037708] usb 1-1.3: Manufacturer: USB > [3225341.037711] usb 1-1.3: SerialNumber: > 09012829b8b34ac0b32423247f16c72e303c7bc976805b653909ab36c22e3dcacf880000000000000000000074408ef6ff082d209755810711ae56dd > [3225341.038089] usb-storage 1-1.3:1.0: USB Mass Storage device detected > [3225341.092530] scsi host7: usb-storage 1-1.3:1.0 > [3225342.121945] scsi 7:0:0:0: Direct-Access USB SanDisk > 3.2Gen1 1.00 PQ: 0 ANSI: 6 > [3225342.123655] sd 7:0:0:0: Attached scsi generic sg4 type 0 > [3225342.124195] sd 7:0:0:0: [sdd] 488374272 512-byte logical blocks: > (250 GB/233 GiB) > [3225342.125193] sd 7:0:0:0: [sdd] Write Protect is off > [3225342.125199] sd 7:0:0:0: [sdd] Mode Sense: 43 00 00 00 > [3225342.126191] sd 7:0:0:0: [sdd] Write cache: disabled, read cache: > enabled, doesn't support DPO or FUA > [3225342.247842] sdd: sdd1 > [3225342.248001] sd 7:0:0:0: [sdd] Attached SCSI removable disk > > All this is correct and I have access to the flash drive. > > Is the USB 3.0 circuitry in my Hewlett-Packard Z420 workstation broken? > > Randall > > On 11/9/24 09:50, Ben Koenig wrote: > > On Friday, November 8th, 2024 at 8:15 PM, American Citizen > > <[email protected]> wrote: > > > >> I have a Hewlett Packard Z420 workstation. About a week ago, the USB > >> ports stopped working. Tonight I identified that it is the USB 3.0 ports > >> that are not working, the USB 2.0 is still working just fine. > >> > >> Has anyone had experience troubleshooting USB 3.0 ports under linux? > >> > >> - Randall > > > > Based on your description of the problem the OS is irrelevant. Most of the > > troubleshooting at this stage is pure hardware. > > > > If you want, you can use the following commands to see if the USB3 host > > controller is detected by Linux and if any devices are detected. > > To see a brief list of all USB devices, including host controllers: > > $ lsusb > > > > To see what happens when a device is inserted, unplug all devices from your > > USB3 slots and then run the following command (as root): > > $ dmesg -w > > > > The -w argument tells dmesg to print the log and any new messages as they > > occur. Once you have that running you can plug in a USB device and it > > should immediately start printing messages related to the device you > > inserted. > > > > You can also automate this to only give you the difference, here's a rough > > example. > > dmesg > dmesg-before.log > > # insert the device > > dmesg > dmesg-after.log > > diff dmesg-before.log dmesg-after.log > > > > Either way, when running into USB problems I always step away from the OS. > > It's much better to start with a "golden device" such as a mouse or > > keyboard that you know works and diagnose with that. > > -Ben > >
