git bisect start
# good: [6a13feb9c82803e2b815eca72fa7a9f5561d7861] Linux 4.3
git bisect good 6a13feb9c82803e2b815eca72fa7a9f5561d7861
# bad: [afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc] Linux 4.4
git bisect bad afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc
# good: [f66477a0aeb77f97a7de5f791700dadc42f3f792] Merge tag 'clk-for-linus-20151104' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
git bisect good f66477a0aeb77f97a7de5f791700dadc42f3f792
# bad: [56e0464980febfa50432a070261579415c72664e] Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect bad 56e0464980febfa50432a070261579415c72664e
# good: [22402cd0af685c1a5d067c87db3051db7fff7709] Merge tag 'trace-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
git bisect good 22402cd0af685c1a5d067c87db3051db7fff7709
# bad: [816d2206f0f9953ca854e4ff1a2749a5cbd62715] Merge tag 'drm-intel-next-fixes-2015-11-06' of git://anongit.freedesktop.org/drm-intel into drm-next
git bisect bad 816d2206f0f9953ca854e4ff1a2749a5cbd62715
# bad: [26148bd3c0f1fbd8f2b0dae994f3195316f677db] drm/i915/bxt: Set time interval unit to 0.833us
git bisect bad 26148bd3c0f1fbd8f2b0dae994f3195316f677db
# bad: [7b24c9a696c1c68eaa471a27bf467e97a9986fa9] drm/i915: don't enable FBC when pixel rate exceeds 95% on HSW/BDW
git bisect bad 7b24c9a696c1c68eaa471a27bf467e97a9986fa9
# good: [85a62bf9d8ef8d533635270ae985281c58e8c974] drm/i915: Also record time difference if vblank evasion fails, v2.
git bisect good 85a62bf9d8ef8d533635270ae985281c58e8c974
# bad: [f4502c25ebd04691f284fdafff4a5613299c36dc] drm/i915: Always try to inherit the initial fb.
git bisect bad f4502c25ebd04691f284fdafff4a5613299c36dc
# good: [1c132b44f0eabaaf801e79a3e4b98770431a4274] drm/i915: Future proof panel fitter.
git bisect good 1c132b44f0eabaaf801e79a3e4b98770431a4274
# good: [4a999d253195db87f18215049cf7a44f795f4ca0] drm/i915: don't hard code vlv backlight frequency if unset
git bisect good 4a999d253195db87f18215049cf7a44f795f4ca0
# good: [8e0e9ceaa05317c6644635f8816705b609f2c274] drm/i915: Remove legacy plane updates for cursor and sprite planes.
git bisect good 8e0e9ceaa05317c6644635f8816705b609f2c274
# good: [f0fea8dd362c77a06e7b8744d63f429fe065c6b4] drm/i915: Remove one very outdated comment
git bisect good f0fea8dd362c77a06e7b8744d63f429fe065c6b4
# good: [44522d852f1979ec0e6807eb4dc58bd7ecc8af08] drm/i915: Set csc coefficients in update_pipe_size.
git bisect good 44522d852f1979ec0e6807eb4dc58bd7ecc8af08
# good: [d551599181769571f4f68dd93e5d8b15868889af] drm/i915: Remove references to crtc->active from intel_fbdev.c
git bisect good d551599181769571f4f68dd93e5d8b15868889af
# first bad commit: [f4502c25ebd04691f284fdafff4a5613299c36dc] drm/i915: Always try to inherit the initial fb.