ACPI and USB problems (usbnet)

ACPI and USB problems (usbnet)

[Nuno Tavares]

Hello,

I have a USB cablemodem (RCA/Thomson DCM245) which uses 2.6/usbnet driver,
and I'm using Fedora Core 2, but this problem remained since RedHat 9, at
least.

If I boot with ACPI turned on (default), the USB device gets disconnected
in random intervals, and later on it will even loose the cable signal
(requiring a reset). If I turn off ACPI (kernel parameter), it won't give
any problems.

What can I do to help fixing this problem?

Motherboard: ECS P4VXASD2 
BIOS: AMI version 07.00T, 04/02/01

Tell me what else do you need.
-
Nuno Tavares



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Re: ACPI and USB problems (usbnet)

[Ow Mun Heng]

On Mon, 2004-07-26 at 18:49, Nuno Tavares wrote:
> If I boot with ACPI turned on (default), the USB device gets disconnected
> in random intervals, and later on it will even loose the cable signal
> (requiring a reset). If I turn off ACPI (kernel parameter), it won't give
> any problems.
> 
I'm not sure if I'm suffering the same thing as you.

USB mouse will lose connectivity needing a plugout-plugin again to bring
it back up.

Random intervals

D600 + 2.6.7 Kernel + ACPI on

Didn't try with ACPI off though



-- 
Ow Mun Heng
Fedora GNU/Linux Core 2 on D600 1.4Ghz CPU kernel
2.6.7-2.jul1-interactive 
Neuromancer 15:59:15 up 6:51, 6 users, load average: 1.41, 1.26, 1.49 


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Re: ACPI and USB problems (usbnet)

[Nuno Tavares]

Em Tue, 27 Jul 2004 16:00:38 -0700, Ow Mun Heng escreveu:

> On Mon, 2004-07-26 at 18:49, Nuno Tavares wrote:
> USB mouse will lose connectivity needing a plugout-plugin again to bring
> it back up.

That's my case!
 
> Didn't try with ACPI off though

Give it a try, that might solve the issue, if ACPI is not *required*.

Perhaps we can establish a pattern...
What's your motherboard (output 'dmidecode')? 
What's your USB Host Controller (UHCI/OHCI/EHCI)?
Does 'lsusb -vvv | grep unknown' gives you any 'unknown interface class
descriptor' messages? This is known to be errors in the
manufacturer's USB code (CIIW), which seem to be related.


-- 
-
Nuno Tavares
http://nthq.cjb.net/




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Re: Re: ACPI and USB problems (usbnet)

[Ow Mun Heng]

On Wed, 2004-07-28 at 08:49, Nuno Tavares wrote:
> Em Tue, 27 Jul 2004 16:00:38 -0700, Ow Mun Heng escreveu:
> 
> > On Mon, 2004-07-26 at 18:49, Nuno Tavares wrote:
> > USB mouse will lose connectivity needing a plugout-plugin again to bring
> > it back up.
> 
> That's my case!
>  
> > Didn't try with ACPI off though
> 
> Give it a try, that might solve the issue, if ACPI is not *required*.
> 
> Perhaps we can establish a pattern...
> What's your motherboard (output 'dmidecode')? 
> What's your USB Host Controller (UHCI/OHCI/EHCI)?
> Does 'lsusb -vvv | grep unknown' gives you any 'unknown interface class
> descriptor' messages? This is known to be errors in the
> manufacturer's USB code (CIIW), which seem to be related.

Actually I think it's a kernel issue. When on RH9 and and running 2.6.3,
no problems. 

Now on 2.6.7


-- 
Ow Mun Heng
Fedora GNU/Linux Core 2 on D600 1.4Ghz CPU kernel
2.6.7-2.jul1-interactive 
Neuromancer 16:27:34 up 7:39, 5 users, load average: 3.80, 2.68, 2.26 


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Re: Re: ACPI and USB problems (usbnet)

[Nuno Tavares]

Em Wed, 28 Jul 2004 16:28:14 -0700, Ow Mun Heng escreveu:

>> > Didn't try with ACPI off though

Did you try it?

> Actually I think it's a kernel issue. 

In which subsytem?

> When on RH9 and and running 2.6.3,
> no problems. 

I'll test 2.6.3. 

Can you answer those questions? 
Plus this one: do you have any other USB devices plugged in (I don't)?

>> Perhaps we can establish a pattern...
>> What's your motherboard (output 'dmidecode')? 
>> What's your USB Host Controller (UHCI/OHCI/EHCI)?

It seems to be UHCI, right (I'm assuming you are talking about Dell D600),
and it seems to be EHCI also. Did you try to plug the mouse on the EHCI
(usb2) virtual hub?

>> Does 'lsusb -vvv | grep unknown' gives you any 'unknown interface class
>> descriptor' messages? This is known to be errors in the
>> manufacturer's USB code (CIIW), which seem to be related.

-- 
Nuno Tavares
http://nthq.cjb.net/




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