[Bug 219681] ASUS Zenbook S 14 UX5406SA: Unstable USB connection on USB-A port under certain condition

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219681

--- Comment #2 from dantmnf2@gmail.com ---
> Are the working and not working ports on the same USB bus, or on different
> ones? Perhaps two different types of USB controllers?

They are on different controllers:
    # readlink /sys/bus/usb/devices/usb*
    ../../../devices/pci0000:00/0000:00:0d.0/usb1
    ../../../devices/pci0000:00/0000:00:0d.0/usb2
    ../../../devices/pci0000:00/0000:00:14.0/usb3
    ../../../devices/pci0000:00/0000:00:14.0/usb4
    # lspci
    ...
    00:0d.0 USB controller: Intel Corporation Lunar Lake-M Thunderbolt 4 USB
Controller (rev 10)
    ...
    00:14.0 USB controller: Intel Corporation Lunar Lake-M USB 3.2 Gen 2x1 xHCI
Host Controller (rev 10)
    ...

> I wonder if any of that is preceded by low level USB errors? Maybe try again
> with some dynamic debug:

It do have some messages like "Stopped on Transfer TRB for slot 4 ep 6" and
"Transfer error for slot 9 ep 0 on endpoint"

> I presume this is not a regression and there are no kernel versions where it
> works correctly?

This is a relatively new platform and kernels before 6.12 cannot give a usable
system.

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