Help with Averatec C3500

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:
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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

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.

Quoted 5 lines · Michael J. Kidd

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?

Quoted 6 lines

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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Quoted 6 lines

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.

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.

Quoted 6 lines

Quoted 6 lines

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.

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.

Quoted 6 lines

Quoted 6 lines

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.