[Bug 107607] [drm:generic_reg_wait [amdgpu]] *ERROR* REG_WAIT timeout 10us * 3000 tries - enc1_stream_encoder_dp_blank line:804

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=107607

            Bug ID: 107607
           Summary: [drm:generic_reg_wait [amdgpu]] *ERROR* REG_WAIT
                    timeout 10us * 3000 tries -
                    enc1_stream_encoder_dp_blank line:804
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: pmenzel+bugs.freedesktop@molgen.mpg.de

Created attachment 141169
  --> https://bugs.freedesktop.org/attachment.cgi?id=141169&action=edit
Linux 4.18+ messages

Using the tiled/MST monitor Dell UP3214Q connected over DisplayPort with the
MSI B350M MORTAR (MS-7A37) with the Raven device Ryzen 3 2200G causes problems
when switching the inputs of the monitor (two systems are connected).

I believe the monitor firmware is buggy, but the problems do not happen with
Microsoft Windows.

[ 2366.214057] [drm] DM_MST: stopping TM on aconnector: 000000009b429054 [id:
51]
[ 2366.214456] [drm] Cannot find any crtc or sizes
[ 2366.214461] [drm] DM_MST: Disabling connector: 000000008d721c89 [id: 56]
[master: 000000009b429054]
[ 2366.214594] [drm] DM_MST: Disabling connector: 000000000f6ee0cf [id: 60]
[master: 000000009b429054]
[ 2366.214730] [drm] Cannot find any crtc or sizes
[ 2366.282730] [drm:generic_reg_wait [amdgpu]] *ERROR* REG_WAIT timeout 10us *
3000 tries - enc1_stream_encoder_dp_blank line:804
[ 2366.282785] WARNING: CPU: 0 PID: 13 at
drivers/gpu/drm/amd/amdgpu/../display/dc/dc_helper.c:254
generic_reg_wait+0xe7/0x160 [amdgpu]
[ 2366.282787] Modules linked in: fuse snd_hda_codec_realtek
snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec
snd_hda_core snd_hwdep amdgpu snd_pcm snd_timer r8169 snd crct10dif_pclmul
soundcore crc32_pclmul k10temp ghash_clmulni_intel chash gpu_sched i2c_piix4
wmi video crc32c_intel xhci_pci xhci_hcd
[ 2366.282801] CPU: 0 PID: 13 Comm: kworker/0:1 Tainted: G        W        
4.18.0-08135-g7cfc03071f97 #85
[ 2366.282802] Hardware name: MSI MS-7A37/B350M MORTAR (MS-7A37), BIOS 1.G1
05/17/2018
[ 2366.282807] Workqueue: events drm_mode_rmfb_work_fn
[ 2366.282844] RIP: 0010:generic_reg_wait+0xe7/0x160 [amdgpu]
[ 2366.282846] Code: 44 24 58 8b 54 24 48 89 de 44 89 4c 24 08 48 8b 4c 24 50
48 c7 c7 f8 27 5b c0 e8 c4 37 05 db 83 7d 18 01 44 8b 4c 24 08 74 02 <0f> 0b 48
83 c4 10 44 89 c8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 41 0f
[ 2366.282848] RSP: 0018:ffffb5e201923a28 EFLAGS: 00010297
[ 2366.282849] RAX: 0000000000000000 RBX: 000000000000000a RCX:
0000000000000000
[ 2366.282851] RDX: 0000000000000000 RSI: ffff92509e815508 RDI:
ffff92509e815508
[ 2366.282852] RBP: ffff92508d225600 R08: ffffffff9b516e40 R09:
0000000000010200
[ 2366.282853] R10: ffff92509ee28658 R11: ffffffff9c9303cd R12:
0000000000000bb9
[ 2366.282854] R13: 00000000000058cc R14: 0000000000010000 R15:
0000000000000000
[ 2366.282856] FS:  0000000000000000(0000) GS:ffff92509e800000(0000)
knlGS:0000000000000000
[ 2366.282857] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2366.282858] CR2: 0000559c01161ef0 CR3: 00000003d62df000 CR4:
00000000003406f0
[ 2366.282859] Call Trace:
[ 2366.282901]  enc1_stream_encoder_dp_blank+0x12c/0x1a0 [amdgpu]
[ 2366.282940]  core_link_disable_stream+0x54/0x220 [amdgpu]
[ 2366.282981]  reset_hw_ctx_wrap+0x241/0x250 [amdgpu]
[ 2366.283020]  dce110_apply_ctx_to_hw+0x45/0x650 [amdgpu]
[ 2366.283061]  ? dcn10_verify_allow_pstate_change_high+0x1d/0x240 [amdgpu]
[ 2366.283098]  dc_commit_state+0x2dc/0x550 [amdgpu]
[ 2366.283140]  amdgpu_dm_atomic_commit_tail+0x37a/0xd80 [amdgpu]
[ 2366.283144]  ? create_object+0x23e/0x290
[ 2366.283147]  ? _cond_resched+0x15/0x30
[ 2366.283148]  ? wait_for_completion_timeout+0x3a/0x180
[ 2366.283150]  ? wait_for_completion_interruptible+0x35/0x1b0
[ 2366.283153]  commit_tail+0x3d/0x70
[ 2366.283155]  drm_atomic_helper_commit+0x103/0x110
[ 2366.283157]  drm_framebuffer_remove+0x347/0x3c0
[ 2366.283160]  drm_mode_rmfb_work_fn+0x4f/0x60
[ 2366.283163]  process_one_work+0x19b/0x350
[ 2366.283165]  worker_thread+0x30/0x370
[ 2366.283167]  ? rescuer_thread+0x320/0x320
[ 2366.283169]  kthread+0x112/0x130
[ 2366.283170]  ? kthread_create_worker_on_cpu+0x70/0x70
[ 2366.283173]  ret_from_fork+0x22/0x40
[ 2366.283174] ---[ end trace 71abef89afed8778 ]---

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