git bisect start
# good: [69973b830859bc6529a7a0468ba0d80ee5117826] Linux 4.9
git bisect good 69973b830859bc6529a7a0468ba0d80ee5117826
# bad: [c470abd4fde40ea6a0846a2beab642a578c0b8cd] Linux 4.10
git bisect bad c470abd4fde40ea6a0846a2beab642a578c0b8cd
# bad: [f4000cd99750065d5177555c0a805c97174d1b9f] Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
git bisect bad f4000cd99750065d5177555c0a805c97174d1b9f
# good: [7079efc9d3e7f1f7cdd34082ec58209026315057] Merge tag 'fbdev-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
git bisect good 7079efc9d3e7f1f7cdd34082ec58209026315057
# bad: [a67485d4bf97918225dfb5246e531643755a7ee1] Merge tag 'acpi-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
git bisect bad a67485d4bf97918225dfb5246e531643755a7ee1
# bad: [5e0df3a08f3d17485a5081634902424c6834e001] drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver
git bisect bad 5e0df3a08f3d17485a5081634902424c6834e001
# good: [fb422950c6cd726fd36eb72a7cf84583440a18a2] Merge branch 'linux-4.9' of git://github.com/skeggsb/linux into drm-next
git bisect good fb422950c6cd726fd36eb72a7cf84583440a18a2
# bad: [58e197d631d44f9f4817b8198b43132a40de1164] drm/i915: Update DRIVER_DATE to 20161108
git bisect bad 58e197d631d44f9f4817b8198b43132a40de1164
# bad: [bb6dc8d96b683a6052162c36062cd8e9329e4f21] drm/i915: Implement pread without struct-mutex
git bisect bad bb6dc8d96b683a6052162c36062cd8e9329e4f21
# bad: [1c00164d4cd1f513ea44a1b068490e52e7cbf04f] drm/i915/DMC/KBL: Load DMC on KBL using the no_stepping_info array
git bisect bad 1c00164d4cd1f513ea44a1b068490e52e7cbf04f
# good: [27b85beae0e75232dedf5a141d3eb50f36567dd2] drm/i915: Augment i915 error state to include the dump of GuC log buffer
git bisect good 27b85beae0e75232dedf5a141d3eb50f36567dd2
# good: [9ca89c443de94751cd6fb5d84b215ec48279e8c2] drm/i915/audio: drop extra crtc clock check from HDMI audio N lookup
git bisect good 9ca89c443de94751cd6fb5d84b215ec48279e8c2
# bad: [24e807e79f103cd9e7799eed704ed6916915d65a] drm/i915/lspcon: Fail LSPCON probe if the start of DPCD can't be read
git bisect bad 24e807e79f103cd9e7799eed704ed6916915d65a
# bad: [6f172a43a6d679e4a6563376f749868a9bf29752] drm/i915/dp: Remove debug dependency of DPCD SW/HW revision read
git bisect bad 6f172a43a6d679e4a6563376f749868a9bf29752
# bad: [c726ad01d2e3e27400421de85800d954df55aeea] drm/dp: Factor out helper to distinguish between branch and sink devices
git bisect bad c726ad01d2e3e27400421de85800d954df55aeea
# bad: [6014ac122ed081feca99217bc57b2e15c7fc1a51] drm/i915/audio: set proper N/M in modeset
git bisect bad 6014ac122ed081feca99217bc57b2e15c7fc1a51
# first bad commit: [6014ac122ed081feca99217bc57b2e15c7fc1a51] drm/i915/audio: set proper N/M in modeset