Sometimes, Display Port screen flickers black
at that time ouput below log on serial consol
I’m using R36.3.0
[ 41.977611] nvgpu: 17000000.gpu ga10b_pbdma_handle_intr_0_acquire:646 [ERR] semaphore acquire timeout!
[ 41.977726] ga10b Channel Status - chip ga10b
[ 41.977728] ga10b ---------------------------
[ 41.977735] ga10b 506-ga10b, TSG: 5, pid 2206, thread name gnome-shell, refs: 4, deterministic: no, domain name: (no domain)
[ 41.977737] ga10b channel status: in use on_pbdma, pbdma_busy busy
[ 41.977741] ga10b RAMFC: TOP: 8000001ff9166110 PUT: 001ff91661bc GET: 001ff9166110 FETCH: 000000000000 HEADER: 20001b00 COUNT: 11110004 SEMAPHORE: addr 001ffd350010 payload 0000000000000001 execute 02181000
[ 41.977744] ga10b
[ 41.977746] ga10b 507-ga10b, TSG: 4, pid 2060, thread name Xorg, refs: 2, deterministic: no, domain name: (no domain)
[ 41.977748] ga10b channel status: in use idle not busy
[ 41.977750] ga10b RAMFC: TOP: 80000020040331b8 PUT: 0020040331b8 GET: 0020040331b8 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004320000 payload 0000000000000000 execute 00000001
[ 41.977752] ga10b
[ 41.977754] ga10b 508-ga10b, TSG: 3, pid 2060, thread name Xorg, refs: 2, deterministic: no, domain name: (no domain)
[ 41.977756] ga10b channel status: in use on_eng not busy
[ 41.977758] ga10b RAMFC: TOP: 8000002004048b38 PUT: 002004048b38 GET: 002004048b38 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004020000 payload 0000000000000000 execute 00100001
[ 41.977760] ga10b
[ 41.977764] ga10b PBDMA Status - chip ga10b
[ 41.977765] ga10b -------------------------
[ 41.977813] ga10b pbdma 0:
[ 41.977818] ga10b id: 5 - [tsg] next_id: - -1 [channel] | status: valid
[ 41.977825] ga10b PBDMA_PUT 0000001ff91661bc PBDMA_GET 0000001ff9166110
[ 41.977839] ga10b GP_PUT 000007a3 GP_GET 0000079e FETCH 0000079e HEADER 20001b00
[ 41.977849] ga10b HDR 200406c0 SHADOW0 04048b10 SHADOW1 00002820
[ 41.977852] ga10b pbdma 1:
[ 41.977853] ga10b id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 41.977864] ga10b PBDMA_PUT 00000041dedaedbc PBDMA_GET 00000041dedaedbc
[ 41.977874] ga10b GP_PUT 00000000 GP_GET 3eb43c86 FETCH 00000000 HEADER e1d0a5f8
[ 41.977885] ga10b HDR d789eb57 SHADOW0 9a9603f3 SHADOW1 84881742
[ 41.977887] ga10b pbdma 2:
[ 41.977889] ga10b id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 41.977900] ga10b PBDMA_PUT 0000005f02d65cf8 PBDMA_GET 0000007dfbce662c
[ 41.977906] ga10b GP_PUT 00000000 GP_GET d14c4d34 FETCH 00000000 HEADER 4117853c
[ 41.977911] ga10b HDR d757fb7d SHADOW0 8520a64f SHADOW1 978a6e63
[ 41.977913] ga10b pbdma 3:
[ 41.977914] ga10b id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 41.977930] ga10b PBDMA_PUT 0000008cf3e70fd8 PBDMA_GET 0000008cf3e70fd8
[ 41.977935] ga10b GP_PUT 00000000 GP_GET 10d8fad1 FETCH 00000000 HEADER a1c28c98
[ 41.977944] ga10b HDR bafd974a SHADOW0 e620ab64 SHADOW1 578524d6
[ 41.977947] ga10b pbdma 4:
[ 41.977949] ga10b id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 41.977959] ga10b PBDMA_PUT 000000f26717dfa4 PBDMA_GET 000000636feffdd4
[ 41.977966] ga10b GP_PUT 00000000 GP_GET 303d4180 FETCH 00000000 HEADER 81876e9c
[ 41.977976] ga10b HDR b6164883 SHADOW0 28067521 SHADOW1 58c2fe4b
[ 41.977978] ga10b pbdma 5:
[ 41.977979] ga10b id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 41.977989] ga10b PBDMA_PUT 000000d00378dd2c PBDMA_GET 000000d00378dd2c
[ 41.977995] ga10b GP_PUT 00000000 GP_GET a1cd1c44 FETCH 00000000 HEADER 01d58fd0
[ 41.978004] ga10b HDR 506c3709 SHADOW0 5f76ee35 SHADOW1 10863449
[ 41.978005] ga10b
[ 41.978012] ga10b ga10b eng 0:
[ 41.978014] ga10b id: 3 (tsg), next_id: -1 (channel), ctx status: valid
[ 41.978015] ga10b
[ 41.978018] ga10b ga10b eng 1:
[ 41.978025] ga10b id: 3 (tsg), next_id: -1 (channel), ctx status: valid
[ 41.978027] ga10b
[ 41.978035] ga10b ga10b eng 2:
[ 41.978037] ga10b id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 41.978038] ga10b
[ 41.978041] ga10b ga10b eng 3:
[ 41.978047] ga10b id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 41.978048] ga10b
[ 41.978060] ga10b ga10b eng 4:
[ 41.978062] ga10b id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 41.978062] ga10b
[ 41.978066] ga10b ga10b eng 5:
[ 41.978072] ga10b id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 41.978073] ga10b
[ 41.978074] ga10b
[ 41.978077] nvgpu: 17000000.gpu ga10b_pbdma_report_error:330 [ERR] pbdma_intr_0(0)= 0x04000000
[ 41.978092] nvgpu: 17000000.gpu nvgpu_cic_mon_report_err_safety_services:97 [ERR] Error reporting is not supported in this platform
[ 41.978106] nvgpu: 17000000.gpu nvgpu_set_err_notifier_locked:143 [ERR] error notifier set to 24 for ch 506 owned by gnome-shell