suspend/resume regression

[Claude Buisson]

On 06/28/2015 09:12, Kevin Oberman wrote:
> On Sat, Jun 27, 2015 at 8:03 PM, Brandon J. Wandersee <
> brandon.wandersee at gmail.com> wrote:
>
>>
>> Kevin Oberman writes:
>>
>>> On Sat, Jun 27, 2015 at 3:13 PM, Joseph Mingrone <jrm at ftfl.ca> wrote:
>>>
>>>> Adrian Chadd <adrian.chadd at gmail.com> writes:
>>>>> does it always fail now?
>>>>
>>>> Yes.  The behaviour I described is, so far with 15-20 tries, consistent.
>>>>
>>>
>>> I confirm that I see the similar behavior on my T520 ThinkPad, Sandy
>> Bridge
>>> system.
>>> FreeBSD rogue 10.2-PRERELEASE FreeBSD 10.2-PRERELEASE #1 r284698: Mon Jun
>>> 22 09:25:11 PDT 2015     root at rogue:/usr/obj/usr/src/sys/GENERIC  amd64
>>>
>>> It has been working flawlessly since Adrian's ACPI update. As of now, it
>>> suspends fine, but it won't resume. I get a fan spin-up, but the power
>> LED
>>> continues to pulse, indicating it is suspended and the logs show nothing
>>> after the suspend.
>>
>> Just updated my T520 yesterday, and I get the same behavior with the
>> same machine here. Suspend is fine; resume fails. It seems to get a bit
>> farther along in the resume process if i915kms isn't loaded, though I've
>> got no way to really measure that. I've tried a GENERIC kernel, clean
>> source tree and empty src.conf, to no avail.
>>
>> Several MFCs in r280434 from a couple weeks ago touched a whole bunch of
>> suspend/resume stuff. That might be a good place to start digging.
>>
>>
> I have narrowed it to between 283990 and 284074. Have to crash, so maybe
> someone else will track it down by tomorrow. I only see a handfull (<10)
> commits in there that look like possible causes. 280434 is compiling right
> now as the prime candidate.
>

FWIW, the only supend/resume problem with my T530 at 280455 (i915kms
loaded by rc.conf) is that the keyboard lights are not restored on resume..

> Kevin Oberman, Network Engineer, Retired
> E-mail: rkoberman at gmail.com
> PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
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Claude Buisson