Re: Intel G41 doesn't see any screens connected after suspend/resume

[Jani Nikula <jani.nikula@linux.intel.com>]

On Tue, 18 Mar 2014, Nikolay Martynov <mar.kolya@gmail.com> wrote:
> Hi.
>
>>>
>>>   I would really appreciate if you could point me on some sort of
>>> manual that describes how to properly run [2] on Ubuntu? Should I run
>>> the whole kernel or just some modules? Is there any way to build only
>>> requires modules?
>>
>> The whole kernel. See https://wiki.ubuntu.com/KernelTeam/GitKernelBuild
>> for a starting point; please use the drm-intel-nightly branch in our
>> tree instead of Linus' tree.
>>
>
>   Thank you so much for that link.
>   I've created a bug report about original suspend/resume issue:
> https://bugs.freedesktop.org/show_bug.cgi?id=76301.
>
>   I was able to build drm-intel-nightly kernel using instructions from
> above link but unfortunately I run into issues:
>   - It looks like I get unsigned kernel modules and this prevents
> proper debug output, hopefully I would be able to resolve this on my
> own but unfortunately I won't be able to provide useful dmesg just
> yet.
>   - The drm-intel-nightly '6e052fec0cc204f4d2a0f71f45c0363971ad10dc'
> kernel hangs during boot on my aforementioned hardware. I've tried
> several times and mostly I get black screen. But couple of times I got
> some error output that stated something about softlock and lost
> interrupts - and it was sort of slowly printing those errors, once
> about 30 seconds. Unfortunately I do not have a hardcopy of that. The
> interesting thing is that when I add 'nomodeset' to boot parameters
> I'm able to successfully boot. I take it this is not expected and
> probably is a regression. I would appreciate if you could suggest
> course of action to debug this (and probably create another
> bugreport).

Perhaps you failed to install the modules that go with the kernel?

BR,
Jani.


>
> Thanks!
>
>
> -- 
> Martynov Nikolay.
> Email: mar.kolya@gmail.com

-- 
Jani Nikula, Intel Open Source Technology Center