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
