[Bug 217398] New: amdgpu module loading breaks display output - no signal

[Bug 217398] New: amdgpu module loading breaks display output - no signal

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=217398

            Bug ID: 217398
           Summary: amdgpu module loading breaks display output - no
                    signal
           Product: Drivers
           Version: 2.5
    Kernel Version: 6.3.1
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: a1bert@atlas.cz
        Regression: No

after loading amdgpu module of 6.3.1 kernel (from ubuntu kernel-ppa) monitor
starts "blinking" between blank screen and "no signal" message

console nor X are working

model name      : AMD Ryzen 5 5600G with Radeon Graphics

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[Bug 217398] amdgpu module loading breaks display output - no signal

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=217398

--- Comment #1 from a1bert (a1bert@atlas.cz) ---
Created attachment 304212
  --> https://bugzilla.kernel.org/attachment.cgi?id=304212&action=edit
dmesg 6.3.1

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[Bug 217398] amdgpu module loading breaks display output - no signal

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=217398

--- Comment #2 from a1bert (a1bert@atlas.cz) ---
Comment on attachment 304212
  --> https://bugzilla.kernel.org/attachment.cgi?id=304212
dmesg 6.3.1

non working 6.3.1 kernel

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[Bug 217398] amdgpu module loading breaks display output - no signal

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=217398

--- Comment #3 from The Linux kernel's regression tracker (Thorsten Leemhuis) (regressions@leemhuis.info) ---
*** Bug 217397 has been marked as a duplicate of this bug. ***

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[Bug 217398] amdgpu module loading breaks display output - no signal

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=217398

The Linux kernel's regression tracker (Thorsten Leemhuis) (regressions@leemhuis.info) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |regressions@leemhuis.info

--- Comment #4 from The Linux kernel's regression tracker (Thorsten Leemhuis) (regressions@leemhuis.info) ---
This report here will likely not be seen by the amdgpu developers, they expect
bugs to be filed here instead:
https://gitlab.freedesktop.org/drm/amd/-/issues

If you file it there, please drop a link to the report here.

BTW, did it work on earlier kernels? Which ones? there is a report about a
problem in earlier kernels that sound somewhat similar (but it might be
something totally different): 
https://lore.kernel.org/all/46a7eb80-5f09-4f6a-4fd3-9550dafd497c@felixrichter.tech/

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[Bug 217398] amdgpu module loading breaks display output - no signal

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=217398

Artem S. Tashkinov (aros@gmx.com) changed:

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

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[Bug 217398] amdgpu module loading breaks display output - no signal

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=217398

--- Comment #5 from a1bert (a1bert@atlas.cz) ---
https://gitlab.freedesktop.org/drm/amd/-/issues/2543

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