[Bug 81367] [IVB/SNB/BYT/BDW/BSW bisected]igt/kms_flip subcases fail and don't exit testing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81367

Paulo Zanoni <przanoni at gmail.com> changed:

           What    |Removed                     |Added
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             Status|ASSIGNED                    |NEEDINFO

--- Comment #11 from Paulo Zanoni <przanoni at gmail.com> ---
(In reply to comment #10)
> I retest on IGT commit c5b9615b83910f5a5c19fc84d938ea643f4e3009, and found
> that all 2x-* subcases are skipped. which mean the commit is good for 2x-*
> subcases.

Did you have two screens when testing?

> 
> I checked bcs-flip-vs-dpms too, and found the subcase didn't exit on commit
> c5b9615b83910f5a5c19fc84d938ea643f4e3009. the commit is not good for subcase
> bcs-flip-vs-dpms.

I guess that means the bug is not really bisected.


I started debugging the bcs-flip-vs-dpms failures on my BDW machine, and this
problem is certainly BDW-specific. I just can't reproduce it on Haswell. So I
really think we should treat this bug as several smaller bugs.

For a better organization, we need to answer the following questions:
- What are the specific cases that fail on each platform?
- Why does it fail? Timeout? Testsuite claims FAIL? Test skipped?
- What are the output configurations used by each machine? For each machine
tested, please describe whether it has HDMI, eDP, DP, VGA, etc.
- Can we try to choose a specific failure from the list and bisect it? From
your comment above it seems the previous bisect result is bad, so we may need
to redo it.

After we get a concrete list of the problems, we need to re-evaluate the
priority of this bug, and decide whether we want to split it or not.

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