[Bug 99908] [i915] driver crashes with dual 4k monitors on Intel HD 520

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99908

--- Comment #11 from Elizabeth <elizabethx.de.la.torre.mena at intel.com> ---
(In reply to Phil Hord from comment #10)
> The problem worsened in Ubuntu 17.04 so much that I reverted to 16.10.  My
> previous attempts to build drm-tip as requested were so far unsuccessful.
> ...
Hello Phil, 
Sorry for the delay. If you are having troubles building the drm-tip, try with
the latest kernel 4.12. You can find aid on youtube tutorials like this: 
https://www.youtube.com/watch?v=oN5PdIKc0tM (this is just an example, you can
search for a better one), and in the community forums:
https://01.org/linuxgraphics/community.

> ... The build ran for a long time before I had to give up and get
> back to my real work.
> 
You can disable CONFIG_DEBUG_INFO in order to build the kernel faster, but if
later is needed, you may need to build again with this feature enable.

> ... But I find the instructions at
> https://01.org/linuxgraphics/documentation/build-guide-0 to be frustratingly
> vague in some places and broken in others. I kept a log of errors for a
> while hoping I could submit a patch to someone, but ultimately I could not
> confidently identify the someone to report it to.  
> 
The documentation on the build guide is intended for giving a simple aid for 
users to do the basic functions, not being too specific, since in every new
linux version the steps for this process can change, so is better to research
on specifics steps per version. Though as you mention, the documents aren't
up-to-date now, so we'll work on it to update the information to a more valid
standar procedure.

>... 
> Do I really need to build a replacement kernel, i915 driver, mesa driver, X
> server, libdrm middleware, and so on -- the complete stack -- to properly
> test?  ...
In this case, the problem is assumed to be in the kernel, so only building the
kernel would be needed by the moment.
Hope this help. Thank you.

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