Help with Averatec C3500

Help with Averatec C3500

[Michael J. Kidd]

Hello all,
 I have an Averatec C3500 Convertible Tablet PC.  With the initial bios 
version that ships with the unit, USB and PCMCIA both work fine in 
linux.  However, there is a terrible keyboard lag and dropped keys.  The 
follow-on bios revisions fixed the keyboard issues, but caused USB and 
PCMCIA to both stop working.  Note: All devices continue to operate fine 
in Windows.  I'm posting this here in hopes that someone will take 
interest in this issue ( there are several others trying to use linux on 
these laptops. )  I've captured dmesg output after enabling 
CONFIG_USB_DEBUG and CONFIG_PCMCIA_DEBUG in the kernel config, and the 
output from lspci -vvxxx, as well as the DSDT output from both the 
original BIOS ( USB working / Keyboard not ) and the latest BIOS 
revision ( USB Not working / Keyboard works great ).

The link for all this captured data is: http://www.linuxkidd.com/c3500   
I've detailed the machine hardware, running kernel, etc.. as well as 
linked to all the above described captures.

After posting the above request to the linux-usb list, Alan Stern 
responded with:
----------------------------------------------------------------------
According to the log, the I/O memory mappings for the USB and PCMCIA
controllers aren't getting set up. It's not a USB or PCMCIA issue at all;
you should ask for help on the PCI and ACPI mailing lists.
----------------------------------------------------------------------

So, here I am...

If there's anything else I can provide to assist in troubleshooting,
Please ask!  I'd really like to get this working.

Thanks in advance for any help!
Michael J. Kidd

ACPI not setting up I/O Memory mappings

[Michael J. Kidd]

ACPI not setting up I/O Memory mappings for USB and PCMCIA controllers 
on Averatec C3500 Laptop..  Can anyone help with this?  Please...

Michael J. Kidd

> Hello all,
> I have an Averatec C3500 Convertible Tablet PC.  With the initial bios 
> version that ships with the unit, USB and PCMCIA both work fine in 
> linux.  However, there is a terrible keyboard lag and dropped keys.  
> The follow-on bios revisions fixed the keyboard issues, but caused USB 
> and PCMCIA to both stop working.  Note: All devices continue to 
> operate fine in Windows.  I'm posting this here in hopes that someone 
> will take interest in this issue ( there are several others trying to 
> use linux on these laptops. )  I've captured dmesg output after 
> enabling CONFIG_USB_DEBUG and CONFIG_PCMCIA_DEBUG in the kernel 
> config, and the output from lspci -vvxxx, as well as the DSDT output 
> from both the original BIOS ( USB working / Keyboard not ) and the 
> latest BIOS revision ( USB Not working / Keyboard works great ).
>
> The link for all this captured data is: 
> http://www.linuxkidd.com/c3500   I've detailed the machine hardware, 
> running kernel, etc.. as well as linked to all the above described 
> captures.
>
> After posting the above request to the linux-usb list, Alan Stern 
> responded with:
> ----------------------------------------------------------------------
> According to the log, the I/O memory mappings for the USB and PCMCIA
> controllers aren't getting set up. It's not a USB or PCMCIA issue at all;
> you should ask for help on the PCI and ACPI mailing lists.
> ----------------------------------------------------------------------
>
> So, here I am...
>
> If there's anything else I can provide to assist in troubleshooting,
> Please ask!  I'd really like to get this working.
>
> Thanks in advance for any help!
> Michael J. Kidd
>

Re: Help with Averatec C3500

[Bjorn Helgaas]

On Saturday 01 April 2006 09:58, Michael J. Kidd wrote:
>  I have an Averatec C3500 Convertible Tablet PC.  With the initial bios 
> version that ships with the unit, USB and PCMCIA both work fine in 
> linux.  However, there is a terrible keyboard lag and dropped keys.  The 
> follow-on bios revisions fixed the keyboard issues, but caused USB and 
> PCMCIA to both stop working.  Note: All devices continue to operate fine 
> in Windows.  I'm posting this here in hopes that someone will take 
> interest in this issue ( there are several others trying to use linux on 
> these laptops. )  I've captured dmesg output after enabling 
> CONFIG_USB_DEBUG and CONFIG_PCMCIA_DEBUG in the kernel config, and the 
> output from lspci -vvxxx, as well as the DSDT output from both the 
> original BIOS ( USB working / Keyboard not ) and the latest BIOS 
> revision ( USB Not working / Keyboard works great ).
> 
> The link for all this captured data is: http://www.linuxkidd.com/c3500   
> I've detailed the machine hardware, running kernel, etc.. as well as 
> linked to all the above described captures.

Thanks for your effort in debugging this.  Can you please open a
bug report at http://bugzilla.kernel.org?

> After posting the above request to the linux-usb list, Alan Stern 
> responded with:
> ----------------------------------------------------------------------
> According to the log, the I/O memory mappings for the USB and PCMCIA
> controllers aren't getting set up. It's not a USB or PCMCIA issue at all;
> you should ask for help on the PCI and ACPI mailing lists.

I don't know enough about USB to know what you're referring to.
Can you point out the messages that suggest a PCI or ACPI issue?

Bjorn

Re: Help with Averatec C3500

[Michael J. Kidd]

Bug #6332 filed against ACPI.

As far as the part of the output which details the lack of IO address, 
I'll leave that to Alan Stern... I'm not quite that advanced at this point..

Thanks for the help!
Michael J. Kidd

Bjorn Helgaas wrote:
> On Saturday 01 April 2006 09:58, Michael J. Kidd wrote:
>   
>>  I have an Averatec C3500 Convertible Tablet PC.  With the initial bios 
>> version that ships with the unit, USB and PCMCIA both work fine in 
>> linux.  However, there is a terrible keyboard lag and dropped keys.  The 
>> follow-on bios revisions fixed the keyboard issues, but caused USB and 
>> PCMCIA to both stop working.  Note: All devices continue to operate fine 
>> in Windows.  I'm posting this here in hopes that someone will take 
>> interest in this issue ( there are several others trying to use linux on 
>> these laptops. )  I've captured dmesg output after enabling 
>> CONFIG_USB_DEBUG and CONFIG_PCMCIA_DEBUG in the kernel config, and the 
>> output from lspci -vvxxx, as well as the DSDT output from both the 
>> original BIOS ( USB working / Keyboard not ) and the latest BIOS 
>> revision ( USB Not working / Keyboard works great ).
>>
>> The link for all this captured data is: http://www.linuxkidd.com/c3500   
>> I've detailed the machine hardware, running kernel, etc.. as well as 
>> linked to all the above described captures.
>>     
>
> Thanks for your effort in debugging this.  Can you please open a
> bug report at http://bugzilla.kernel.org?
>
>   
>> After posting the above request to the linux-usb list, Alan Stern 
>> responded with:
>> ----------------------------------------------------------------------
>> According to the log, the I/O memory mappings for the USB and PCMCIA
>> controllers aren't getting set up. It's not a USB or PCMCIA issue at all;
>> you should ask for help on the PCI and ACPI mailing lists.
>>     
>
> I don't know enough about USB to know what you're referring to.
> Can you point out the messages that suggest a PCI or ACPI issue?
>
> Bjorn
> -
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>   

Re: Help with Averatec C3500

[Bjorn Helgaas]

Alan, could you give me a hint about what you mean?  ACPI doesn't
ioremap device registers, so I'm not sure what the problem is.

> > After posting the above request to the linux-usb list, Alan Stern 
> > responded with:
> > ----------------------------------------------------------------------
> > According to the log, the I/O memory mappings for the USB and PCMCIA
> > controllers aren't getting set up. It's not a USB or PCMCIA issue at all;
> > you should ask for help on the PCI and ACPI mailing lists.

Re: Help with Averatec C3500

[Bjorn Helgaas]

On Thursday 06 April 2006 08:59, Bjorn Helgaas wrote:
> Alan, could you give me a hint about what you mean?  ACPI doesn't
> ioremap device registers, so I'm not sure what the problem is.
> 
> > > After posting the above request to the linux-usb list, Alan Stern 
> > > responded with:
> > > ----------------------------------------------------------------------
> > > According to the log, the I/O memory mappings for the USB and PCMCIA
> > > controllers aren't getting set up. It's not a USB or PCMCIA issue at all;
> > > you should ask for help on the PCI and ACPI mailing lists.

Sorry, I see you already responded to the bugzilla:
    http://bugzilla.kernel.org/show_bug.cgi?id=6332

I'll take another look and respond there also.

Thanks,
  Bjorn

Re: Help with Averatec C3500

[Alan Stern]

On Thu, 6 Apr 2006, Bjorn Helgaas wrote:

> Alan, could you give me a hint about what you mean?  ACPI doesn't
> ioremap device registers, so I'm not sure what the problem is.
> 
> > > After posting the above request to the linux-usb list, Alan Stern 
> > > responded with:
> > > ----------------------------------------------------------------------
> > > According to the log, the I/O memory mappings for the USB and PCMCIA
> > > controllers aren't getting set up. It's not a USB or PCMCIA issue at all;
> > > you should ask for help on the PCI and ACPI mailing lists.

Since I don't know how this low-level stuff is handled, I was guessing.

ACPI is involved in setting up motherboard resources, including 
configuration of various bridges.  If a bridge wasn't configured properly, 
the CPU wouldn't be able to access the device's I/O hardware.

Alan Stern