[Bug 73037] [BYT]igt/many kms_flip subcases randomly fail with *ERROR* failed to train DP, aborting

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73037

lu hua <huax.lu at intel.com> changed:

           What    |Removed                     |Added
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             Status|NEEDINFO                    |REOPENED

--- Comment #39 from lu hua <huax.lu at intel.com> ---
(In reply to Ville Syrjala from comment #38)
> Can you retest with the latest nightly now that all the pps fixes have gone
> in?
> 
> In addition you may want to test this patch:
> http://patchwork.freedesktop.org/patch/37945/
> It should eliminate all self inflicted link training failures, but it may
> make some tests fail outright since the kernel will reject the invalid
> connector combination instead of pretending that it's supported.

Run kms_flip on latest -nightly kernel, execute about 80 subcases. I don't meet
this error, some subcases have "[ 5086.662683] [drm:__vlv_force_wake_get
[i915]] *ERROR* Timed out: waiting for Render to ack."

Run kms_plane 5 cycles, this error doesn't exist.

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