Bug 528545

Summary: Unable to use usb devices on 2.6.31
Product: [Fedora] Fedora Reporter: José Matos <jamatos>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: rawhideCC: dougsland, gansalmon, itamar, kernel-maint
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2009-10-14 02:07:09 UTC Type: ---
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dmesg 2.6.31.1-56.fc12.x86_64 output none

Description José Matos 2009-10-12 18:05:23 UTC 
I have installed my laptop using the (F12) Alpha installer and then around September 25th I have update my laptop to the latest rawhide.

All the installed kernel other than the initial kernel-2.6.31-0.125.4.2.rc5.git2.fc12.x86_64 refuse to use usb devices (in my case the most used is an external mouse).

While in grub the mouse is connected as seen by the green light of the optical mouse, as soon as the kernel loads to mouse is turned off and any attempt to connect gets the same treatment.

I have attached the dmesg output of 2.6.31.1-56.fc12.x86_64
Comment 1 José Matos 2009-10-12 18:06:24 UTC 
Created attachment 364501 [details]
dmesg 2.6.31.1-56.fc12.x86_64 output
Comment 2 Chuck Ebbert 2009-10-14 00:23:59 UTC 
Your system BIOS is badly broken. Blame HP. Maybe there is an update available?

It should work if you boot with the kernel option "intel_iommu=off".
Comment 3 Chuck Ebbert 2009-10-14 02:07:09 UTC 

*** This bug has been marked as a duplicate of bug 524808 ***