Red Hat Bugzilla – Bug 128631
No USB with 2.6 kernels, AMD756 chipset
Last modified: 2015-01-04 17:08:11 EST
Description of problem:
USB does not initialize properly, no USB device is usable.
Version-Release number of selected component (if applicable):
Tested with 2.6.6-1.435 (Fedora Core 2 updates) and 2.6.7-1.478
(Fedora Core 3 test 1, on an otherwise fully up-to-date Fedora Core 2
How reproducible: Always
Steps to Reproduce: N/A
USB does not work at all. With the 2.6.6-1.435 kernel,
cat /proc/bus/usb/devices shows only the hub, any other device is not
registered (plugging devices in and out does not create syslog messages).
With 2.6.7-1.478, cat /proc/bus/usb/devices simply hangs.
At least USB devices should register on the bus. Devices have worked
on an older Redhat 8 system on the same machine.
Will attach /var/log/messages
Created attachment 102223 [details]
I should add that it's a Gigabyte GA-7IXE4 mainboard (AMD Irongate
After some digging I found an old report in bugzilla which I filed
when some early 2.4 kernels broke USB on the same mainboard:
Still no USB with Fedora Core Test 3 (2.6.8-1.541 kernel).
Problem solved with 2.6.10 kernels.
An update has been released for Fedora Core 3 (kernel-2.6.12-1.1372_FC3) which
may contain a fix for your problem. Please update to this new kernel, and
report whether or not it fixes your problem.
If you have updated to Fedora Core 4 since this bug was opened, and the problem
still occurs with the latest updates for that release, please change the version
field of this bug to 'fc4'.
As I was writing in comment #4, the problem has disappeared since kernel
2.6.10. I have since upgraded to FC4, and everything is still working fine.
I think the bug can be closed.