Public bug reported:

Binary package hint: linux-image-2.6.24-21-generic

1) Hardy 8.04.1 with hardy-updates
2) linux-image-2.6.24-21-generic:  Installed: 2.6.24-21.42

Since the kernel upgrade from 2.6.24-19 to 2.6.24-21, devices plugged in
our internal usbhub are not automatically reconized. Running lsusb in a
console make the devices been reconized.

Some cases I tested :

- Booting with devices plugged in the hub make them available until they are 
all unplugged. Then plugging in back doesn't recognize them anymore (until 
lsusb)
- it doesn't appens with the usb ports directly connected to the motherboard
- the usb hub is recognized at boot.
- booting 2.6.24-19 make it works fine
- plugging in a device doesn't show any error in the kernel messages.
- I checked for the Vendor/Product ID of my hub in the diff file of 2.6.24-21, 
and didn't found anything, so I guess it's not a side effect of a quirk. 
- tested on different hardware with different hub, always the same problem


It seems that the usb bus doesn't not scan for devices recursively until we 
explicit ask for it (with lsusb)


I'm attaching the output of dmesg with this comment. (the usb mass storage 
which are reconized at the end are because of the cases explained upper).
I'll post uname-a.log, lspci-vvnn.log, version.log and lsusb-v.log as requested 
in https://wiki.ubuntu.com/KernelTeamBugPolicies in next comments.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

-- 
usb devices not recognized automatically when plugged in a hub
https://bugs.launchpad.net/bugs/287576
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to