[Bug 205335] New: [amdgpu] suspend / screen black after thaw

[Bug 205335] New: [amdgpu] suspend / screen black after thaw

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=205335

            Bug ID: 205335
           Summary: [amdgpu] suspend / screen black after thaw
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.3.7-arch1-1-ARCH
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: arne_woerner@yahoo.com
        Regression: No

Created attachment 285667
  --> https://bugzilla.kernel.org/attachment.cgi?id=285667&action=edit
some kernel messages regarding the amdgpu driver...

since about kernel-5.2.8 my box does not thaw properly.
during suspend it already behaves differently (the screen goes black while the
image is being written...).
first it was once per 10 thaws...
but now it became quite bad (like every second thaw)...

the GPU is a RX550:
Device: Radeon 550 Series (POLARIS12, DRM 3.33.0, 5.3.7-arch1-1-ARCH, LLVM
9.0.0) (0x699f)

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[Bug 205335] [amdgpu] suspend / screen black after thaw

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=205335

--- Comment #1 from Arne Woerner (arne_woerner@yahoo.com) ---
*** Bug 204953 has been marked as a duplicate of this bug. ***

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[Bug 205335] [amdgpu] suspend / screen black after thaw

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=205335

Alex Deucher (alexdeucher@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #2 from Alex Deucher (alexdeucher@gmail.com) ---
Can you bisect?

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[Bug 205335] [amdgpu] suspend / screen black after thaw

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=205335

--- Comment #3 from Arne Woerner (arne_woerner@yahoo.com) ---
bisect means compiling a kernel again and again with different patches and
testing?
in a "nested intervals" fashion?
i think that is too much load for my box...

i even deleted the 5.1 kernel package from the pacman cache...
the old linux-firmware packages, too...
furthermore i'm afraid, that there are security issues with old kernels...

i think it happened before...
https://bugzilla.kernel.org/show_bug.cgi?id=198619
but this time it is worse sometimes: the screen remains dark after thaw...
maybe it is the same reason?

-arne

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[Bug 205335] [amdgpu] suspend / screen black after thaw

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=205335

--- Comment #4 from Alex Deucher (alexdeucher@gmail.com) ---
bisecting is a git feature which allows you to identify what commit caused an
issue.  There were several suspend/resume issues related to multi-media engines
that were fixed recently.  Can you try v5.4-rc5?  The fixes will be coming back
to other kernels via stable.

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[Bug 205335] [amdgpu] suspend / screen black after thaw

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=205335

--- Comment #5 from Arne Woerner (arne_woerner@yahoo.com) ---
i am using 5.4.0-rc5ARNE now...
my first self-compiled kernel since years... giggle

OpenGL and btrfs and bcache and sound work fine...

it cannot hibernate via s2disk (when i try it, it gets an EIO, immediately
after it starts writing the image)...
but
# echo disk > /sys/power/state
works fine so far...

is there some kernel config option that i have to enable for s2disk?

-arne

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[Bug 205335] [amdgpu] suspend / screen black after thaw

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=205335

Arne Woerner (arne_woerner@yahoo.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |PATCH_ALREADY_AVAILABLE

--- Comment #6 from Arne Woerner (arne_woerner@yahoo.com) ---
it thaws nicely now... with 5.4.0-rc5... -arne

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