nouveau: w520 dock station: link training failed

[Ilia Mirkin]

On Wed, Jul 16, 2014 at 10:18 AM, Ricardo Ribalda Delgado
<ricardo.ribalda at gmail.com> wrote:
> I have tried with .16-rc5 from linus tree.
>
> After installing and restarting: Exactly the same behaviour: dmesg
> complains about link error.... and about 10 secs later whole system
> crash :S
>
> So I power cycle the machine and everything works perfectly. Both
> connectors, notebook and dock.  :)
>
> I could try to replicate the error if you are interested.

If it happens again, please try to record the messages and file a bug.
It might have been some sort of "warm" state left over from
less-than-perfect drivers that will never happen again in practice. Or
perhaps you accidentally booted the wrong kernel the first time
around.

>
> Is there any plans to backport whatever fixed this issue to Long Term
> Support kernel tree?

Certainly not in mainline -- the changes were substantial, and only
small fixes get backported in normal stable trees. Questions about
what a distro might do should be brought up with that distro.

Cheers,

  -ilia

>
> Thanks!
>
>
>
>
> On Wed, Jul 16, 2014 at 3:33 PM, Maarten Lankhorst
> <maarten.lankhorst at canonical.com> wrote:
>> op 16-07-14 15:00, Ilia Mirkin schreef:
>>> On Wed, Jul 16, 2014 at 8:22 AM, Ricardo Ribalda Delgado
>>> <ricardo.ribalda at gmail.com> wrote:
>>>> Hello LLia do you have any way of building new drivers into old kernel
>>>> trees like the media-build?
>>> Nope, sorry. You could try just copying over the drm directory, but
>>> it's unlikely to yield positive results. Just build a fresh kernel.
>>>
>> There's https://backports.wiki.kernel.org/index.php/Main_Page ;-)
>>
>> But it's a nasty piece of work, just use a newer kernel please.
>>
>
>
>
> --
> Ricardo Ribalda