[Bug 105639] System hangs up when loading amdgpu module

[Bug 105639] System hangs up when loading amdgpu module

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=105639

            Bug ID: 105639
           Summary: System hangs up when loading amdgpu module
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: jian-hong@endlessm.com

Created attachment 138233
  --> https://bugs.freedesktop.org/attachment.cgi?id=138233&action=edit
dmesg of loading amdgpu module

I have an AMD Ryzen 5 2400G with Radeon Vega Graphics computer.  When I use the
Linux kernel v4.16-rc6 on it, system hangs up during the booting time.

Therefore, I try to load the amdgpu module manually and found whenever I load
amdgpu module, system hangs up.  However, I can ssh into the system, after
system hangs up.

The attachment is the dmesg with the mudule parameters amdgpu.dc_log=1
drm.debug=7.

09:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Vega [Radeon Vega 8 Mobile] [1002:15dd] (rev c6) (prog-if 00 [VGA
controller])
        Subsystem: Acer Incorporated [ALI] Vega [Radeon Vega 8 Mobile]
[1025:1257]
        Flags: bus master, fast devsel, latency 0, IRQ 67
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Memory at f0000000 (64-bit, prefetchable) [size=2M]
        I/O ports at e000 [size=256]
        Memory at fe700000 (32-bit, non-prefetchable) [size=512K]
        Capabilities: <access denied>
        Kernel driver in use: amdgpu

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[Bug 105639] System hangs up when loading amdgpu module

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=105639

--- Comment #1 from Alex Deucher <alexdeucher@gmail.com> ---
You built the driver without display support.  Please make sure your .config
has the following set:
CONFIG_DRM_AMD_DC=y
CONFIG_DRM_AMD_DC_DCN1_0=y

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[Bug 105639] System hangs up when loading amdgpu module

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https://bugs.freedesktop.org/show_bug.cgi?id=105639

jian-hong@endlessm.com changed:

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

--- Comment #2 from jian-hong@endlessm.com ---
Thanks Alex,
It works for next step!

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