git bisect start
# good: [e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd] Linux 5.1
git bisect good e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd
# bad: [0ecfebd2b52404ae0c54a878c872bb93363ada36] Linux 5.2
git bisect bad 0ecfebd2b52404ae0c54a878c872bb93363ada36
# bad: [a2d635decbfa9c1e4ae15cb05b68b2559f7f827c] Merge tag 'drm-next-2019-05-09' of git://anongit.freedesktop.org/drm/drm
git bisect bad a2d635decbfa9c1e4ae15cb05b68b2559f7f827c
# good: [82efe439599439a5e1e225ce5740e6cfb777a7dd] Merge tag 'devicetree-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
git bisect good 82efe439599439a5e1e225ce5740e6cfb777a7dd
# good: [b3a5e648f5917ea508ecab9a629028b186d38eae] Merge tag 'tty-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
git bisect good b3a5e648f5917ea508ecab9a629028b186d38eae
# bad: [27eaa4927dc3be669ed70670241597ac73595caf] drm/amd/display: Add power down display on boot flag
git bisect bad 27eaa4927dc3be669ed70670241597ac73595caf
# good: [b4e4538a0ab5079ae5dc401970e11f0ff2ba13a7] Merge tag 'drm-misc-next-2019-03-28-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
git bisect good b4e4538a0ab5079ae5dc401970e11f0ff2ba13a7
# bad: [163def43e9a10ff834859e3b0bf04bcc71b90888] drm/amdgpu: Fix lockdep warning more gracely
git bisect bad 163def43e9a10ff834859e3b0bf04bcc71b90888
# good: [c9ff9d8ee3c6832f8a203fffbc710ab4b177ceda] drm/amd/powerplay: add watermarks related data structs and function for SMU11.
git bisect good c9ff9d8ee3c6832f8a203fffbc710ab4b177ceda
# bad: [71ec90943876620f50f8d0ebaf305877667a069e] drm/ttm: Fix spelling of "KiB"
git bisect bad 71ec90943876620f50f8d0ebaf305877667a069e
# good: [cbbf388fa26bff77e2a1be56dadee1eb41aa110d] drm/amd/powerplay: set dpm table of vclk/dclk/eclk for smu11 (v2)
git bisect good cbbf388fa26bff77e2a1be56dadee1eb41aa110d
# good: [7cef6a120ec4d04c204b2caac226af473b67e410] drm/amd/display: Add function to create 4d19 fixed point
git bisect good 7cef6a120ec4d04c204b2caac226af473b67e410
# good: [162f807858d15bde60cf373a3ad46e03200ad9d8] drm/amd/display: half bandwidth for YCbCr420 during validation
git bisect good 162f807858d15bde60cf373a3ad46e03200ad9d8
# good: [69226e9c7d4e721c683bac7fef4c613a71a3508d] drm/amd/display: 3.2.20
git bisect good 69226e9c7d4e721c683bac7fef4c613a71a3508d
# bad: [df8368be1382b442384507a5147c89978cd60702] drm/amdgpu: Bump amdgpu version for per-flip plane tiling updates
git bisect bad df8368be1382b442384507a5147c89978cd60702
# good: [a08ac5a62c0f8b29d110004d05b1554a8b8fd5f5] drm/amd/display: Add pp_smu null pointer check
git bisect good a08ac5a62c0f8b29d110004d05b1554a8b8fd5f5
# first bad commit: [df8368be1382b442384507a5147c89978cd60702] drm/amdgpu: Bump amdgpu version for per-flip plane tiling updates