Greetings,
I recently got a new notebook, a Dell G5 5505, mostly composed of AMD
hardware. After the initial hiccups most things work smoothly now, until
I tried to connect my backup drive (2TB HDD in a USB3 enclosure with
JMicron bridge):
Nov 8 23:39:09 leena kernel: usb 1-2: new low-speed USB device number 2
using xhci_hcd
Nov 8 23:39:19 leena kernel: xhci_hcd 0000:08:00.3: xHCI host not
responding to stop endpoint command.
Nov 8 23:39:19 leena kernel: xhci_hcd 0000:08:00.3: USBSTS:
Nov 8 23:39:19 leena kernel: xhci_hcd 0000:08:00.3: xHCI host
controller not responding, assume dead
Nov 8 23:39:19 leena kernel: xhci_hcd 0000:08:00.3: HC died; cleaning up
Nov 8 23:39:19 leena kernel: usb usb1-port2: couldn't allocate usb_device
Nov 8 23:39:19 leena kernel: usb usb2-port2: couldn't allocate usb_device
Sadly that's not a random hiccup, but reproducable. I did some research
and some sources recommended to add iommu=pt, but not changes here. The
BIOS of the G5 is kinda sparse, the only option looking relevant was
"USB emulation", but toggling it also did not change anything.
I uploaded several logs:
kernel_g5.log (full kernel log from the G5)
lsusb_g5. log (lsusb log, JMicron not plugged in)
lspci_g5.log (lspci log)
lsusb_enclosure (lsusb excerpt for the JMicron, taken via a different
system)
You can find the files here:
https://gist.github.com/tobiasjakobi/84b6d58d5c387cfb4bbba87e7a589ca8
The "different system" is another AMD based one (desktop, AMD Athlon
3000G, ASRock B450M-HDV R4.0). lspci says the following about the USB hw:
01:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 400 Series
Chipset USB 3.1 XHCI Controller (rev 01)
09:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 USB 3.1
Anything I can do to help triage this problem?
With best wishes,
Tobias
