[ltp] acpiphp_ibm

[Antony Gelberg]

Jaime Davila wrote:
> Antony Gelberg wrote:
>> Hi,
>>
>> I have an X31 laptop with Ultrabay, which I am trying to get working in
>> Linux.  The Ultrabay works only if it's plugged in before boot, and
>> undocking from it causes a hang.  I'm running 2.6.18 on Debian Etch.
>>
>> I have no /proc/acpi/ibm/dock, which is apparently related to this:
>> http://mailman.linux-thinkpad.org/pipermail/linux-thinkpad/2006-November/037018.html.
>>
>>  ibm_acpi is loaded.
>>
>> I have no clue how to get it working.  I have (randomly) modprobed
>> acpiphp-ibm which resulted in:
>> Jan 21 13:41:27 localhost kernel: acpiphp_ibm: ibm_find_acpi_device:
>> Failed to get device information<3>acpiphp_ibm: ibm_find_acpi_device:
>> Failed to get device information<3>acpiphp_ibm: ibm_find_acpi_device:
>> Failed to get device information<3>acpiphp_ibm: ibm_acpiphp_init:
>> acpi_walk_namespace failed
>>
>> Can anyone assist?
>>
>> Antony
> Same thing happens with my x40. The problem seems to be related to a bug
> on how the system deals with the cdrom drive in the bay. What I do is
> unmount anything that might be in the drive, and then run sudo hotswap
> -c 1 unregister-ide . After that, I can undock without a problem.
> 
> When I dock again, in order for the system to see the drive, I execute
> sudo hotswap -c 1 rescan-ide .
> 

I'm sorted now.  I didn't realise that the acpiphp module alone would
make the dock work.  But what is the acpiphp_ibm module actually for?