[Bug 94014] Failure to wake monitor after sleep on Haswell graphics driver under 4.4.1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94014

--- Comment #10 from John <da_audiophile at yahoo.com> ---
OK... I finished the bisect:

09120d4e88b13967d44d46280fb74d3ac4ac2f73 is the first bad commit
commit 09120d4e88b13967d44d46280fb74d3ac4ac2f73
Author: Michel Thierry <michel.thierry at intel.com>
Date:   Wed Jul 29 17:23:45 2015 +0100

    drm/i915: Remove unnecessary gen8_clamp_pd

    gen8_clamp_pd clamps to the next page directory boundary, but the macro
    gen8_for_each_pde already has a check to stop at the page directory
    boundary.

    Furthermore, i915_pte_count also restricts to the next page table
    boundary.

    v2: Rebase after Mika's ppgtt cleanup / scratch merge patch series.

    Suggested-by: Akash Goel <akash.goel at intel.com>
    Signed-off-by: Michel Thierry <michel.thierry at intel.com>
    Reviewed-by: "Akash Goel" <akash.goel at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

:040000 040000 d5ad200fb348cab8518d6f7efdf9a15dcde161b8
0f9248add7ae0d95a7e17fd1a0c975b577245fd0 M    drivers


% git bisect log
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
# bad: [85a62bf9d8ef8d533635270ae985281c58e8c974] drm/i915: Also record time
difference if vblank evasion fails, v2.
git bisect bad 85a62bf9d8ef8d533635270ae985281c58e8c974
# bad: [901c2daf05c8ae6c3f85370fc96b9b6892f5da2d] drm/i915: Put back lane_count
into intel_dp and add link_rate too
git bisect bad 901c2daf05c8ae6c3f85370fc96b9b6892f5da2d
# bad: [cf1d58833f07afbb4534b15caa3fd48baa313b2c] drm/i915/bxt: WA for swapped
HPD pins in A stepping
git bisect bad cf1d58833f07afbb4534b15caa3fd48baa313b2c
# bad: [e1f123257a1f7d3af36a31a0fb2d4c6f40039fed] drm/i915: Expand error
state's address width to 64b
git bisect bad e1f123257a1f7d3af36a31a0fb2d4c6f40039fed
# bad: [81ba8aefd03803a8aec3395d18f7b1dda5942105] drm/i915/gen8: Add PML4
structure
git bisect bad 81ba8aefd03803a8aec3395d18f7b1dda5942105
# bad: [d4ec9da0e17cb6a86c0b76c5b254981601d25031] drm/i915/gen8: Abstract PDP
usage
git bisect bad d4ec9da0e17cb6a86c0b76c5b254981601d25031
# bad: [6ac1850220732f47bc6ae767fa41542009674ad7] drm/i915/gen8: Make pdp
allocation more dynamic
git bisect bad 6ac1850220732f47bc6ae767fa41542009674ad7
# bad: [09120d4e88b13967d44d46280fb74d3ac4ac2f73] drm/i915: Remove unnecessary
gen8_clamp_pd
git bisect bad 09120d4e88b13967d44d46280fb74d3ac4ac2f73
# first bad commit: [09120d4e88b13967d44d46280fb74d3ac4ac2f73] drm/i915: Remove
unnecessary gen8_clamp_pd

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