Thinkpad T510: LAN? CPU-C3?

[Jan Henrik Sylvester]

On 03/29/2010 22:51, Brandon Gooch wrote:
> On Mon, Mar 29, 2010 at 8:45 PM, Jan Henrik Sylvester<me at janh.de>  wrote:
>> On 03/29/2010 20:58, Jan Henrik Sylvester wrote:
>>>
>>> On 03/29/2010 18:22, Rui Paulo wrote:
>>>>
>>>> On 29 Mar 2010, at 15:56, Rui Paulo wrote:
>>>>
>>>>> On 29 Mar 2010, at 11:21, Jan Henrik Sylvester wrote:
>>>>>
>>>>>> I would like to use FreeBSD on a Thinkpad T510. I installed 8-STABLE
>>>>>> (since iwn got 6000 support after 8.0-RELEASE).
>>>>>>
>>>>>> *** Not working: (Any ideas?)
>>>>>>
>>>>>> - LAN: The Intel ethernet card (class=0x020000 card=0x215317aa
>>>>>> chip=0x10ea8086 rev=0x06 hdr=0x00) is not working.
>>>>>
>>>>> This seems an Intel card. Which Linux driver do you use to get this
>>>>> working?
>>>>
>>>> Actually, this seems to be supported by if_em(4).
>>>
>>> I guess it should be E1000_DEV_ID_PCH_M_HV_LM, which is in e1000_hw.h
>>> and there is "case E1000_DEV_ID_PCH_M_HV_LM" in e1000_api.c, but nothing
>>> in if_em.c for 8-STABLE. Revision 200243 has brought it to CURRENT on
>>> Dec-8, but that one did not get MFCed to 8-STABLE. I wonder if that was
>>> on purpose. (I put jfv@ on Cc, who did the commit.)
>>>
>>>>>> - CPU-C3: No C3 (dev.cpu.0.cx_supported: C1/3 C2/245) for i7-620M.
>>>>>> Battery life will not be good without C3, and Turbo Boost will not
>>>>>> work either. (Apparently, Linux got C3 support on a quick boot with
>>>>>> a live CD.)
>>>>>
>>>>> Did you try removing the power cord? Sometimes C3 is hidden and only
>>>>> shows up when the power cord is unplugged.
>>>
>>> (I definitely should have put in the battery before pulling the power
>>> cord...)
>>>
>>> Unplugging the power while running FreeBSD does not change the sysctl.
>>> Or would I have to boot on battery? That would severely restrict the
>>> use. (I will try that later.)
>>>
>>> Turbo Boost requires C3 and is not a feature that is typically used on
>>> battery.
>>
>> Booting on battery did not give me C3, either. What can I do next?
>>
>> Cheers,
>> Jan Henrik
>
> Take a look at this:
>
> http://wiki.freebsd.org/TuningPowerConsumption
>
> I've used this guide to get C3 working on several notebooks...

Thanks for the suggestion. I knew that guide, but I thought it contained 
only suggestions to improve C-state handlng, not to enable them.

I did all the /boot/loader.conf entries suggested there, but I still do 
not have C3. Changing everything in BIOS to "maximum battery" does not 
help, either.

Any more ideas?

iasl gives me "1 Errors, 17 Warnings, 5 Remarks, 2824 Optimizations" for 
my dsdt. Do these need to be fixed? (The error seems pretty harmless 
concerning '_HID, "*pnp0c14"', which should be alphanumeric.)

Cheers,
Jan Henrik