[ltp] Thinkpad T60 2007-CTO bluetooth not working

Sat, 2 Aug 2008 01:32:05 -0300

On Fri, 01 Aug 2008, Josh wrote:
>> I'd say the ThinkPad BIOS is reporting that the device is permanentely
>> disabled or not installed as far as thinkpad-acpi knows, but I need data to
>> know for sure what is happening.
>>
>> Load thinkpad-acpi with the debug=0xffff option, and send me the kernel logs
>> it will produce.
>
> Hopefully I did this right. First I tried booting with the hardware  
> switch set to the off position. No change. It booted fine, I switched it  
> to on and wlan came up but still no /proc/acpi/ibm/bluetooth file was  
> created.

Ok.  Thanks for trying, it was a long shot anyway, but since it was an easy
and fast one, I thought it better to ask.

> Aug  1 17:39:37 joshm-laptop kernel: [  528.383594] thinkpad_acpi:  
> ThinkPad ACPI Extras v0.17

It *is* possible that you would have a better luck using a more recent
thinkpad-acpi, but I am not certain about that.

> Aug  1 17:39:37 joshm-laptop kernel: [  528.383600] thinkpad_acpi:  
> ThinkPad BIOS 79ETD7WW (2.17 ), EC 79HT50WW-1.07

The newest BIOS for your machine is 2.22, it might be a good idea to
upgrade. I do NOT think this will fix bluetooth, however we can never be
sure by just looking at the public changelogs.

> Aug  1 17:39:37 joshm-laptop kernel: [  528.390372] thinkpad_acpi:  
> ibm_init: probing for bluetooth
> Aug  1 17:39:37 joshm-laptop kernel: [  528.390490] thinkpad_acpi:  
> bluetooth_init: bluetooth hardware not installed

BIOS reports it is hidden or not present.  ThinkPad ACPI tries no further
than this.  If you boot without letting thinkpad-acpi load at all (rename
the thinkpad_acpi.ko file under /lib/modules to something else temporarily
to make sure of it), does bluetooth show up on lsusb (always run lsusb as
root) ?

If it does show up, does it disappear when you move thinkpad_acpi.ko back to
its proper name, and modprobe thinkpad-acpi ?

> I'll have to get back to you on the kernel and whatnot. It's been years  
> since I've compiled my own kernel. Fedora->SuSE-> Ubuntu have ruined me  
> since my old slackware days ;) I probably haven't built a kernel since  
> slackware 8.0
>
> That and it's late on Friday and my 2 year old is running wild. If I  
> spend all evening on the computer my wife will be cooking me for dinner  
> tonight ;-)

We can take it slowly :-)

If you DO want to try to compile the kernel, here are some starting points:

https://help.ubuntu.com/community/Kernel/Compile

and

https://wiki.ubuntu.com/KernelTeam/GitKernelBuild

If you use the later one, you can use this on step "2" (git clone):
git clone git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git release/2.6.25

The directory for step 3 onwards will not be linux-2.6 but ibm-acpi-2.6, so
take note of that.

(You could also use release/2.6.26, but I don't think 2.6.26.1 is very safe
yet.  release/2.6.25 is exactly I am running on my T43, and it is 2.6.25.14
+ latest thinkpad-acpi release).

> Now that I think about it before I go pestering more developers I would  
> like to try installing on a fresh HDD incase who knows what went wonky  
> with my install. Granted mine was a clean install from good media, but  
> I've seen stranger things happen.

Sure.  Ping me on ibm-acpi@hmh.eng.br when you have tried that.

>> I am the kernel maintainer for thinkpad-acpi.  Thanks for the offer, I might
>> have to take you up on it if it is indeed a bug in thinkpad-acpi, in order
>> to test the fix.  But for now, the debug output of thinkpad-acpi would be a
>> good starting point...
>
> Well first off I'de like to thank you for your work. If it is needed I  
> can provide you with SSH access to a 2007-CTO for quite some time. We  
> have "loaners" for when the kids break theirs and I just swap HDD and  
> send them on their way while I repair theirs. The kids do not come back  
> until late august and I have a good many loaners available. One missing  
> for awhile wouldn't be any problem.

It would have to be one where the problem is showing up, I think.  If you do
set up one where I am allowed to rebuild the kernel and do reboots, it might
be enough to track down the problem.  But I will need root access for this.
It would be best if it were a freshly-installed box which you can wipe when
I am done with the testing.

If you do decide to go this way, email me off-list at ibm-acpi@hmh.eng.br
and I will send you a SSH key and instructions, so that we can do this
safely without exposing any passwords to anyone, and without bothering the
list.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh