Thinkpad T410: resume broken

[Hans Petter Selasky]

On 05/23/14 13:30, Bengt Ahlgren wrote:
> Ian Smith <smithi at nimnet.asn.au> writes:
>
>> [minus -current, not subscribed]
>>
>> On Thu, 22 May 2014 22:39:50 -0700, Kevin Oberman wrote:
>>   > On Wed, May 21, 2014 at 12:43 PM, Jan Henrik Sylvester <me at janh.de> wrote:
>>   > > On 05/21/2014 21:22, Hans Petter Selasky wrote:
>>   > > > On 05/21/14 21:16, Jan Henrik Sylvester wrote:
>>   > > >> Unfortunately, my USB mouse does not work anymore: After the first
>>   > > >> resume, it took a few seconds until it worked again (the build in
>>   > > >> touchpad was back immediately). After the second resume, it would not
>>   > > >> work anymore at all, even after reconnecting it to a different EHCI
>>   > > >> port. It does work at a XHCI, though, until the next resume. Anyhow,
>>   > > >> this is obviously not related to the original problem.
>>   > > >
>>   > > > Hi,
>>   > > >
>>   > > > USB controller are being reset at resume, so I think this indicates a
>>   > > > more fundamental PCI/BUS problem.
>>   > >
>>   > > Looking through dmesg, it seems that other USB devices (build-in) are
>>   > > reappearing (Qualcomm Gobi 2000, Broadcom Bluetooth Device) after
>>   > > resume, just not the mouse.
>>
>> More likely, just not anything using the external USB ports, if it's the
>> same issue that seems to be happening on (all?) X2xx, X4xx, X5xx and
>> someone mentioned a T320? - ie perhaps all modern(ish) Lenovo laptops.
>>
>> It's becoming clear to me that there are two distinct and probably
>> completely unrelated suspend/resume issues on these machines:
>>
>>   1) graphics issues, where most of the attention has been (rightly)
>>      focussed.  My X200 has older Intel i915, pre-KMS, and has NO video
>>      issues on suspend/resume at all on stable/9, from console or X.
>>
>>   2) disappearance of external USB ports after sometimes the first and on
>>      others (such as my X200) the second resume.  This extends to there
>>      being no 5V on the connectors, which may or may not be the main
>>      problem.  It is seeming to be more likely a BIOS/ACPI issue, given
>>      that USB (UCHI & EHCI here) is doing the right thing to wake them.
>
> A peculiarity I noted on my X201 is that it does not seem to have any
> USB 1.x controllers, only ehci 2.0, yet the man page says that "EHCI
> controllers are peculiar in that they can only handle the USB 2.0
> protocol".
>
> I wonder if these boxes have some strange ohci or uhci controllers that
> are not detected, or some kind of integrated 2.0/1.x controllers that
> the ehci driver does not fully understand and therefore is causing the
> resume issue?
>

No,

They have an external USB 2.0 HUB with TT, which does the FS/LS transfers.

--HPS