[Bug 208587] New: amdgpu hang and gnome shell crash if playing video on 5600M with DRI_PRIME

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=208587

            Bug ID: 208587
           Summary: amdgpu hang and gnome shell crash if playing video on
                    5600M with DRI_PRIME
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.8.0-rc5
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: dani at rodler-keller.de
        Regression: No

Created attachment 290321
  --> https://bugzilla.kernel.org/attachment.cgi?id=290321&action=edit
dmesg

On my Dell Inc. G5 5505 the Gnome Shell Wayland session crashes when I try to
watch a video with "DRI_PRIME=1 firefox" on the AMD 5600M I get the following
kernel error messages

[Do Jul 16 20:16:03 2020] [drm:mod_hdcp_add_display_to_topology [amdgpu]]
*ERROR* Failed to add display topology, DTM TA is not initialized.
[Do Jul 16 20:16:03 2020] [drm] [Link 0] WARNING MOD_HDCP_STATUS_FAILURE IN
STATE HDCP_UNINITIALIZED STAY COUNT 0
[Do Jul 16 20:16:03 2020] ------------[ cut here ]------------
[Do Jul 16 20:16:03 2020] WARNING: CPU: 7 PID: 181 at
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:3194
dcn20_validate_bandwidth_fp+0x7a/0xb0 [amdgpu]

CPU Brand:  AMD Ryzen 7 4800H with Radeon Graphics   

Operating System Version:
    "Arch Linux" (64 bit)
    Kernel Name:  Linux
    Kernel Version:  5.8.0-rc5-1-mainline
    Window Manager:  GNOME Shell (Wayland)
    Firefox 78

DRI_PRIME=1 glxinfo

Device: AMD Radeon RX 5600M (NAVI10, DRM 3.38.0, 5.8.0-rc5-1-mainline, LLVM
10.0.0) (0x731f)
    Version: 20.1.3

DRI_PRIME=0 glxinfo

    Device: AMD RENOIR (DRM 3.38.0, 5.8.0-rc5-1-mainline, LLVM 10.0.0) (0x1636)
    Version: 20.1.3

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