[Bug 86268] [BSW regression] eDP goes black after running tesdisplay

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86268

Li Xu <li.l.xu at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED

--- Comment #4 from Li Xu <li.l.xu at intel.com> ---
With the good and bad point found yesterday,I try to bisect again. 
During the bisect,all the bad points I marked are all can't light up, except
the first bad commit 6189b0369c67f5bc6687ee957b3c1317dbb78922,it is caused by
running the testdisplay case.
Maybe it seems strange.

Bisect log shows as follows:

# good: [3eebaec630c2413a5e67bb7f49f0c6a53069a399] drm/i915: Update DRIVER_DATE
to 20141024
git bisect good 3eebaec630c2413a5e67bb7f49f0c6a53069a399
# bad: [f1e0a6fc5af65661170eed49ba85339b54e5015a] drm/i915: Delete outdated
comment in byt_pte_encode
git bisect bad f1e0a6fc5af65661170eed49ba85339b54e5015a
# bad: [6189b0369c67f5bc6687ee957b3c1317dbb78922] drm/i915/audio: set ELD
Conn_Type at one place
git bisect bad 6189b0369c67f5bc6687ee957b3c1317dbb78922
# bad: [2d65a9f48fcdf7866aab6457bc707ca233e0c791] Merge branch 'drm-next' of
git://people.freedesktop.org/~airlied/linux
git bisect bad 2d65a9f48fcdf7866aab6457bc707ca233e0c791
# bad: [77c688ac87183537ed0fb84ec2cb8fa8ec97c458] Merge branch 'for-linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
git bisect bad 77c688ac87183537ed0fb84ec2cb8fa8ec97c458
# bad: [8aff6ad5a393b8e2ad00dce4d278ecf41397bf0d] drm/radeon: add a backlight
quirk for Amilo Xi 2550
git bisect bad 8aff6ad5a393b8e2ad00dce4d278ecf41397bf0d
# bad: [b5591bd6a66c0a8a289aa3e85e5f43284757d618] Merge branch 'drm-fixes-3.17'
of git://people.freedesktop.org/~agd5f/linux into drm-fixes
git bisect bad b5591bd6a66c0a8a289aa3e85e5f43284757d618
# bad: [799028d5d85384cce140323be633c8d5f079193f] drm/radeon: don't reset sdma
on CIK init
git bisect bad 799028d5d85384cce140323be633c8d5f079193f
# bad: [897eba827e8659a03a1b2f4e74389691f824783f] drm/radeon: Disable HDP flush
before every CS again for < r600
git bisect bad 897eba827e8659a03a1b2f4e74389691f824783f
# bad: [64d8ee59577a2b1de73cc40c2ec661bddf71e8b0] drm/radeon: delete unused
PTE_* defines
git bisect bad 64d8ee59577a2b1de73cc40c2ec661bddf71e8b0
# first bad commit: [64d8ee59577a2b1de73cc40c2ec661bddf71e8b0] drm/radeon:
delete unused PTE_* defines

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