[Bug 208909] New: amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[Bug 208909] New: amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

            Bug ID: 208909
           Summary: amdgpu Ryzen 7 4700U NULL pointer dereference multi
                    monitor with rotation
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.8.0-050800-generic
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: kernel@890.at
        Regression: No

Created attachment 290909
  --> https://bugzilla.kernel.org/attachment.cgi?id=290909&action=edit
dmesg output

Hi,

I have a lenovo E15 gen2 laptop running, with a Ryzen 7 4700U renoir Vega 7, on
a 5.8 ubuntu mainline kernel including the latest firmware files (git).

System seems stable so far when running 2 monitors (internal display, and
external display on DP).

When adding a third monitor on the HDMI output and rotating this monitor, the
system crashes with a null pointer dereference.


any help would be appreciated

cheers

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

Alex Deucher (alexdeucher@gmail.com) changed:

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

--- Comment #1 from Alex Deucher (alexdeucher@gmail.com) ---
Please attach your full dmesg output and xorg log (if using X).

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #2 from kernel@890.at ---
Created attachment 292003
  --> https://bugzilla.kernel.org/attachment.cgi?id=292003&action=edit
complete dmesg output

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #3 from kernel@890.at ---
Created attachment 292005
  --> https://bugzilla.kernel.org/attachment.cgi?id=292005&action=edit
xorg log

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #4 from kernel@890.at ---
Created attachment 292007
  --> https://bugzilla.kernel.org/attachment.cgi?id=292007&action=edit
another backtrace

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #5 from kernel@890.at ---
Hi,

I have justed tested today the rotation on the HDMI output with one external
monitor only, the same result, it seems that there is a rotation problem in
general.

If you need any further information or testing, do not hesitate to ask ;)

cheers

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #6 from Alex Deucher (alexdeucher@gmail.com) ---
What resolutions are your displays?

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #7 from kernel@890.at ---
FullHD

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #8 from kernel@890.at ---
just tried the 5.8.2 kernel same result, backtrace is attached

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #9 from kernel@890.at ---
Created attachment 292043
  --> https://bugzilla.kernel.org/attachment.cgi?id=292043&action=edit
5.8.2 backtrace

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #10 from kernel@890.at ---
just tried the 5.8.3 kernel with the same result, backtrace is attached.

This time I tried to rotate the display on the DisplayPort/USB-C, it does not
seem to be related to the port.

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #11 from kernel@890.at ---
Created attachment 292063
  --> https://bugzilla.kernel.org/attachment.cgi?id=292063&action=edit
5.8.3 backtrace

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

--- Comment #12 from kernel@890.at ---
Created attachment 292495
  --> https://bugzilla.kernel.org/attachment.cgi?id=292495&action=edit
5.8.9 backtrace

Still crashing with 5.8.9

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[Bug 208909] amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=208909

kernel@890.at changed:

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

--- Comment #13 from kernel@890.at ---
I have currently upgraded to 5.11.0-27-generic (hwe) and this problem seems to
be fixed.

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