Bug#689368: Mouse and keyboard freeze on Ivy Bridge platform

[sebastien.dinot@free.fr]

Hi,

I am encountering random keyboard and mouse freezes which can only be resolved by a hard reset (by pushing the power switch of the computer case).

I have this frequent and irritating issue with two differents Ivy Bridge platforms: 

1. Processor:   Intel Core i5 3450 (IGP HD 2500)
   Motherboard: MSI Z77A-G43 (with uptodate BIOS)
   
2. Processor:   Intel Core i5 3570K (IGP HD 4000)
   Motherboard: ASUS P8Z77-V LX (with uptodate BIOS)

I use Debian on these platforms and I tried several Linux kernels:
  
  * linux-image-3.2.0-3-amd64   (package from Debian testing)
  * linux-image-3.4-trunk-amd64 (package from Debian experimental)
  * linux-image-3.5-trunk-amd64 (package from Debian experimental)

I pointed out this bug to the Debian kernel team:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=689368

The mouse and keyboard are both USB devices and it seems that the bug is coming from the echci-hcd module:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=689368#24

I attached the dmesg output and the kern.log file to my first message to Debian:

* http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=35;filename=dmesg.20121001-231244;att=1;bug=689268
* http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=35;filename=kern.log.20121001-232320.gz;att=2;bug=689268

As mentioned to the Debian maintainers, this bug is very frequent (I had up to four freezes in an hour) and my PC are really unusable!

Can I run additional tests or give you additional informations to help you resolve this painful bug?

Sebastien

-- 
Sébastien Dinot, sebastien.dinot@free.fr
http://sebastien.dinot.free.fr/
Ne goûtez pas au logiciel libre, vous ne pourriez plus vous en passer !