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From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Mon, 10 Jan 2022 18:22:44 -0800
Message-ID: <CAHk-=wi8b-YKHeNfwyYHMcgR2vJh4xpSZ0qjkv8E8Y9V8Sv2Tg@mail.gmail.com>
Subject: Re: [git pull] drm for 5.17-rc1 (pre-merge window pull)
To:     Alex Deucher <alexdeucher@gmail.com>
Cc:     Daniel Vetter <daniel.vetter@ffwll.ch>,
        "Wentland, Harry" <harry.wentland@amd.com>,
        Dave Airlie <airlied@gmail.com>,
        "Koenig, Christian" <christian.koenig@amd.com>,
        dri-devel <dri-devel@lists.freedesktop.org>,
        LKML <linux-kernel@vger.kernel.org>,
        amd-gfx list <amd-gfx@lists.freedesktop.org>
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On Mon, Jan 10, 2022 at 5:21 PM Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> I'll see if I can bisect it at least partially.

It seems to be very reliable. I can see the flickering even at early
boot before gdb has started - the graphical screen where you type the
encrypted disk password at boot already shows it as you type.

Right now it is

  bad: 9602044d1cc12280e20c88885f2cd640ae80f69e
  good: 3867e3704f136beadf5e004b61696ef7f990bee4

so it's going to be one of these:

  9602044d1cc1 drm/amd/display: Fix for the no Audio bug with Tiled Displays
  a896f870f8a5 drm/amd/display: Fix for otg synchronization logic
  aba3c3fede54 drm/amd/display: Clear DPCD lane settings after repeater training
  9311ed1e1241 drm/amd/display: add hdmi disable debug check
  6421f7c750e9 drm/amd/display: Allow DSC on supported MST branch devices
  ebe5ffd8e271 drm/amd/display: Enable P010 for DCN3x ASICs
  c022375ae095 drm/amd/display: Add DP-HDMI FRL PCON Support in DC
  50b1f44ec547 drm/amd/display: Add DP-HDMI FRL PCON SST Support in DM
  81d104f4afbf drm/amdgpu: Don't halt RLC on GFX suspend
  fe9c5c9affc9 drm/amdgpu: Use MAX_HWIP instead of HW_ID_MAX
  370016988665 drm/amdgpu: fix the missed handling for SDMA2 and SDMA3
  6c18ecefaba7 drm/amdgpu: declare static function to fix compiler warning
  94a80b5bc7a2 amdgpu/pm: Modify implmentations of
get_power_profile_mode to use amdgpu_pp_profile_name

and I guess I'll do the few more bisections to pick out the exact one.

             Linus