USB Problem on a HP Compaq DC7600

Predrag Punosevac punosevac at
Tue Aug 28 01:54:52 PDT 2007

You find the specification of your mother board and the south bridge 
chip set should be listed. Should be included in computer documentation 
or go to web site of Compaq and check. That is one of the key specifications
of your mother board. If I remember well the  south bridge  chip set is 
in charge with your USB. We could check right away against
hardware compatibility list if there is really some issue with your chip 
set. Since you are really running and older version of FreeBSD
and your Compact might be brand new maybe there is some issue.  I hope 
more knowledgeable  get involved in our discussion.

Why did you post your question in multimedia? Try also posting it on 
freebsd-questions at

Robert Nicholson wrote:
> Hi Predrag,
> Thank you for your mail.
> I installed FreeBSD 6.0 since I was instructed to do so because we 
> want to test the network  testing tools that we develop at work 
> specifically for systems running FreeBSD 6.0 as many of our customers 
> still use FBSD 6.0
> I am not auto mounting the drives.
> I am trying to mount the drive manually but /dev/da* does not get 
> created automatically when the drive is plugged in to the USB slot. 
> There is no message in dmesg or in /var/log/messages either.
> Yes I do have usbd_enable="YES" in /etc/rc.conf
> How do you find out which bridge chipset it is?
> Thanks.
> Michael.
> On 8/28/07, * Predrag Punosevac* <punosevac at 
> <mailto:punosevac at>> wrote:
>     Out of curiosity why did you install 6.0 version when there is 6.2
>     version? Are you trying to do auto mount on usb drive or you mounted
>     your pan manually. HAL really had issues until maybe half a year ago.
>     The question is which version of HAL you use.
>     Do you have usbd_enable="YES" in rc.conf file.(usb  deamon)  I do  not
>     know if the daemon is behaving differently on older machines.
>     Try to mount thins manually first. I have intell 945G chipset but
>     that
>     is the North Bridge. What is your south bridge Chipset?
>     Robert Nicholson wrote:
>     > Predrag, sorry for the mistake.
>     >
>     > Hi everyone,
>     >
>     > I just installed FreeBSD 6.0 on a HP Compaq DC7600 Small Form
>     Factor
>     > PC at work. It uses an intel 945G chipset. I could not get the
>     > broadcom NIC to work so we replaced it with a D-Link NIC and
>     that works.
>     >
>     > The other problem is that the four USB ports on the machine are
>     > recognized and the /dev/ directory has character devices usb1 to
>     usb4
>     > but plugging in any usb drive (including a USB pen drive) causes the
>     > system to hang for about 4 seconds and then  the drive is not
>     > recognized. There are no /dev/da* devices, no dmesg messages and no
>     > /var/log/messages either.
>     >
>     > I checked the kernel config. Devices umass, ehci, ohci , uhci,
>     usb. da
>     > as well as scbus are all enabled. I am at a loss on how to solve
>     this
>     > problem. Please help.
>     >
>     > Thanks and Regards,
>     > Michael.

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