I originally used an Acer VG280K, but I changed it to an LG 24UD58 and the same situation happened. When the resolution was changed to 3840x2160, there would be no image, but it was ok at 1920x1080.
When I switched to 3840x2160 I got the error message:
[ 4954.923050] nvgpu: 17000000.gpu ga10b_pbdma_handle_intr_0_acquire:646 [ERR] semaphore acquire timeout!
[ 4954.923182] __ga10b__ Channel Status - chip ga10b
[ 4954.923183] __ga10b__ ---------------------------
[ 4954.923187] __ga10b__ 508-ga10b, TSG: 3, pid 14596, thread name gnome-control-c, refs: 2, deterministic: no, domain name: (no domain)
[ 4954.923189] __ga10b__ channel status: in use idle not busy
[ 4954.923192] __ga10b__ RAMFC: TOP: 80000020040080a0 PUT: 0020040080a0 GET: 0020040080a0 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004010000 payload 0000000000000000 execute 00100001
[ 4954.923194] __ga10b__
[ 4954.923197] __ga10b__ 509-ga10b, TSG: 2, pid 10620, thread name gnome-shell, refs: 4, deterministic: no, domain name: (no domain)
[ 4954.923199] __ga10b__ channel status: in use on_pbdma, on_eng, pbdma_busy busy
[ 4954.923201] __ga10b__ RAMFC: TOP: 8000002004008348 PUT: 002004008348 GET: 002004008348 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004010000 payload 0000000000000000 execute 00100001
[ 4954.923202] __ga10b__
[ 4954.923204] __ga10b__ 510-ga10b, TSG: 1, pid 10234, thread name Xorg, refs: 2, deterministic: no, domain name: (no domain)
[ 4954.923205] __ga10b__ channel status: in use idle not busy
[ 4954.923207] __ga10b__ RAMFC: TOP: 8000002004033b90 PUT: 002004033b90 GET: 002004033b90 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004320000 payload 0000000000000000 execute 00000001
[ 4954.923209] __ga10b__
[ 4954.923210] __ga10b__ 511-ga10b, TSG: 0, pid 10234, thread name Xorg, refs: 2, deterministic: no, domain name: (no domain)
[ 4954.923211] __ga10b__ channel status: in use idle not busy
[ 4954.923213] __ga10b__ RAMFC: TOP: 800000200404c080 PUT: 00200404c080 GET: 00200404c080 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004020000 payload 0000000000000000 execute 00100001
[ 4954.923214] __ga10b__
[ 4954.923217] __ga10b__ PBDMA Status - chip ga10b
[ 4954.923218] __ga10b__ -------------------------
[ 4954.923221] __ga10b__ pbdma 0:
[ 4954.923225] __ga10b__ id: 2 - [tsg] next_id: - -1 [channel] | status: valid
[ 4954.923231] __ga10b__ PBDMA_PUT 0000001fe5a4b1d0 PBDMA_GET 0000001fe5a4b1bc
[ 4954.923237] __ga10b__ GP_PUT 0000045b GP_GET 00000457 FETCH 0000045b HEADER 2140006c
[ 4954.923242] __ga10b__ HDR 2001001b SHADOW0 e5a4b1ac SHADOW1 0000241f
[ 4954.923245] __ga10b__ pbdma 1:
[ 4954.923246] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4954.923252] __ga10b__ PBDMA_PUT 000000f73b773c10 PBDMA_GET 000000dbde590120
[ 4954.923257] __ga10b__ GP_PUT 00000000 GP_GET d0b8e3b5 FETCH 00000000 HEADER e142ffc4
[ 4954.923262] __ga10b__ HDR a3cf6b7e SHADOW0 70402e26 SHADOW1 f757f1d8
[ 4954.923264] __ga10b__ pbdma 2:
[ 4954.923265] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4954.923271] __ga10b__ PBDMA_PUT 000000fbfb3b6684 PBDMA_GET 000000fbfb3b6684
[ 4954.923276] __ga10b__ GP_PUT 00000000 GP_GET 843be9ec FETCH 00000000 HEADER 81030dac
[ 4954.923281] __ga10b__ HDR 95190ccf SHADOW0 b524df35 SHADOW1 64ae9069
[ 4954.923283] __ga10b__ pbdma 3:
[ 4954.923284] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4954.923290] __ga10b__ PBDMA_PUT 000000b9129737a0 PBDMA_GET 0000002555b50cb8
[ 4954.923296] __ga10b__ GP_PUT 00000000 GP_GET 3a8b3a68 FETCH 00000000 HEADER c1c71f48
[ 4954.923300] __ga10b__ HDR 7e9d832e SHADOW0 e1502781 SHADOW1 1843d69b
[ 4954.923302] __ga10b__ pbdma 4:
[ 4954.923304] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4954.923309] __ga10b__ PBDMA_PUT 00000078359a9780 PBDMA_GET 000000fea41f7b48
[ 4954.923315] __ga10b__ GP_PUT 00000000 GP_GET 0c86561a FETCH 00000000 HEADER a14727b4
[ 4954.923319] __ga10b__ HDR 201be5a2 SHADOW0 b3be10e6 SHADOW1 17f2ec01
[ 4954.923321] __ga10b__ pbdma 5:
[ 4954.923322] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4954.923328] __ga10b__ PBDMA_PUT 0000009ed3efabe0 PBDMA_GET 000000f5ce66aacc
[ 4954.923333] __ga10b__ GP_PUT 00000000 GP_GET 23ed83e3 FETCH 00000000 HEADER 01457990
[ 4954.923337] __ga10b__ HDR e7199a00 SHADOW0 6df6b01a SHADOW1 1822bfea
[ 4954.923338] __ga10b__
[ 4954.923344] __ga10b__ ga10b eng 0:
[ 4954.923346] __ga10b__ id: 2 (tsg), next_id: -1 (channel), ctx status: valid
[ 4954.923347] __ga10b__
[ 4954.923350] __ga10b__ ga10b eng 1:
[ 4954.923351] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4954.923352] __ga10b__
[ 4954.923356] __ga10b__ ga10b eng 2:
[ 4954.923357] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4954.923358] __ga10b__
[ 4954.923361] __ga10b__ ga10b eng 3:
[ 4954.923362] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4954.923363] __ga10b__
[ 4954.923366] __ga10b__ ga10b eng 4:
[ 4954.923367] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4954.923368] __ga10b__
[ 4954.923371] __ga10b__ ga10b eng 5:
[ 4954.923372] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4954.923372] __ga10b__
[ 4954.923373] __ga10b__
[ 4954.923375] nvgpu: 17000000.gpu ga10b_pbdma_report_error:330 [ERR] pbdma_intr_0(0)= 0x04000000
[ 4954.923382] nvgpu: 17000000.gpu nvgpu_cic_mon_report_err_safety_services:97 [ERR] Error reporting is not supported in this platform
[ 4954.923390] nvgpu: 17000000.gpu nvgpu_set_err_notifier_locked:156 [ERR] error notifier set to 24 for ch 509 owned by gnome-shell
[ 4983.085690] nvgpu: 17000000.gpu ga10b_pbdma_handle_intr_0_acquire:646 [ERR] semaphore acquire timeout!
[ 4983.085958] __ga10b__ Channel Status - chip ga10b
[ 4983.085960] __ga10b__ ---------------------------
[ 4983.085965] __ga10b__ 508-ga10b, TSG: 3, pid 14596, thread name gnome-control-c, refs: 2, deterministic: no, domain name: (no domain)
[ 4983.085967] __ga10b__ channel status: in use idle not busy
[ 4983.085971] __ga10b__ RAMFC: TOP: 80000020040080a0 PUT: 0020040080a0 GET: 0020040080a0 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004010000 payload 0000000000000000 execute 00100001
[ 4983.085972] __ga10b__
[ 4983.085975] __ga10b__ 509-ga10b, TSG: 2, pid 10620, thread name gnome-shell, refs: 4, deterministic: no, domain name: (no domain)
[ 4983.085977] __ga10b__ channel status: in use on_pbdma, on_eng, pbdma_busy busy
[ 4983.085979] __ga10b__ RAMFC: TOP: 80000020040080c8 PUT: 0020040080c8 GET: 0020040080c8 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004010000 payload 0000000000000000 execute 00100001
[ 4983.085980] __ga10b__
[ 4983.085982] __ga10b__ 510-ga10b, TSG: 1, pid 10234, thread name Xorg, refs: 2, deterministic: no, domain name: (no domain)
[ 4983.085983] __ga10b__ channel status: in use idle not busy
[ 4983.085984] __ga10b__ RAMFC: TOP: 8000002004033b90 PUT: 002004033b90 GET: 002004033b90 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004320000 payload 0000000000000000 execute 00000001
[ 4983.085986] __ga10b__
[ 4983.085987] __ga10b__ 511-ga10b, TSG: 0, pid 10234, thread name Xorg, refs: 2, deterministic: no, domain name: (no domain)
[ 4983.085988] __ga10b__ channel status: in use idle not busy
[ 4983.085990] __ga10b__ RAMFC: TOP: 800000200404c0a8 PUT: 00200404c0a8 GET: 00200404c0a8 FETCH: 000000000000 HEADER: 2140006c COUNT: 00000000 SEMAPHORE: addr 002004020000 payload 0000000000000000 execute 00100001
[ 4983.085991] __ga10b__
[ 4983.085994] __ga10b__ PBDMA Status - chip ga10b
[ 4983.085996] __ga10b__ -------------------------
[ 4983.085998] __ga10b__ pbdma 0:
[ 4983.086002] __ga10b__ id: 2 - [tsg] next_id: - -1 [channel] | status: valid
[ 4983.086008] __ga10b__ PBDMA_PUT 0000001fe5a45980 PBDMA_GET 0000001fe5a4596c
[ 4983.086014] __ga10b__ GP_PUT 00000068 GP_GET 00000064 FETCH 00000068 HEADER 2140006c
[ 4983.086019] __ga10b__ HDR 2001001b SHADOW0 e5a4595c SHADOW1 0000241f
[ 4983.086021] __ga10b__ pbdma 1:
[ 4983.086022] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4983.086027] __ga10b__ PBDMA_PUT 000000f73b773c10 PBDMA_GET 000000dbde590120
[ 4983.086033] __ga10b__ GP_PUT 00000000 GP_GET d0b8e3b5 FETCH 00000000 HEADER e142ffc4
[ 4983.086043] __ga10b__ HDR a3cf6b7e SHADOW0 70402e26 SHADOW1 f757f1d8
[ 4983.086049] __ga10b__ pbdma 2:
[ 4983.086051] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4983.086061] __ga10b__ PBDMA_PUT 000000fbfb3b6684 PBDMA_GET 000000fbfb3b6684
[ 4983.086071] __ga10b__ GP_PUT 00000000 GP_GET 843be9ec FETCH 00000000 HEADER 81030dac
[ 4983.086076] __ga10b__ HDR 95190ccf SHADOW0 b524df35 SHADOW1 64ae9069
[ 4983.086083] __ga10b__ pbdma 3:
[ 4983.086084] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4983.086094] __ga10b__ PBDMA_PUT 000000b9129737a0 PBDMA_GET 0000002555b50cb8
[ 4983.086100] __ga10b__ GP_PUT 00000000 GP_GET 3a8b3a68 FETCH 00000000 HEADER c1c71f48
[ 4983.086110] __ga10b__ HDR 7e9d832e SHADOW0 e1502781 SHADOW1 1843d69b
[ 4983.086112] __ga10b__ pbdma 4:
[ 4983.086113] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4983.086136] __ga10b__ PBDMA_PUT 00000078359a9780 PBDMA_GET 000000fea41f7b48
[ 4983.086147] __ga10b__ GP_PUT 00000000 GP_GET 0c86561a FETCH 00000000 HEADER a14727b4
[ 4983.086152] __ga10b__ HDR 201be5a2 SHADOW0 b3be10e6 SHADOW1 17f2ec01
[ 4983.086159] __ga10b__ pbdma 5:
[ 4983.086161] __ga10b__ id: -1 - [channel] next_id: - -1 [channel] | status: invalid
[ 4983.086166] __ga10b__ PBDMA_PUT 0000009ed3efabe0 PBDMA_GET 000000f5ce66aacc
[ 4983.086176] __ga10b__ GP_PUT 00000000 GP_GET 23ed83e3 FETCH 00000000 HEADER 01457990
[ 4983.086186] __ga10b__ HDR e7199a00 SHADOW0 6df6b01a SHADOW1 1822bfea
[ 4983.086186] __ga10b__
[ 4983.086196] __ga10b__ ga10b eng 0:
[ 4983.086198] __ga10b__ id: 2 (tsg), next_id: -1 (channel), ctx status: valid
[ 4983.086199] __ga10b__
[ 4983.086203] __ga10b__ ga10b eng 1:
[ 4983.086204] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4983.086210] __ga10b__
[ 4983.086215] __ga10b__ ga10b eng 2:
[ 4983.086216] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4983.086216] __ga10b__
[ 4983.086225] __ga10b__ ga10b eng 3:
[ 4983.086226] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4983.086227] __ga10b__
[ 4983.086230] __ga10b__ ga10b eng 4:
[ 4983.086231] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4983.086232] __ga10b__
[ 4983.086236] __ga10b__ ga10b eng 5:
[ 4983.086237] __ga10b__ id: -1 (channel), next_id: -1 (channel), ctx status: invalid
[ 4983.086242] __ga10b__
[ 4983.086243] __ga10b__
[ 4983.086246] nvgpu: 17000000.gpu ga10b_pbdma_report_error:330 [ERR] pbdma_intr_0(0)= 0x04000000
[ 4983.086257] nvgpu: 17000000.gpu nvgpu_cic_mon_report_err_safety_services:60 [ERR] Error reporting is not supported in this platform
[ 4983.086271] nvgpu: 17000000.gpu nvgpu_set_err_notifier_locked:156 [ERR] error notifier set to 24 for ch 509 owned by gnome-shell
[ 5010.156081] nvidia-modeset: ERROR: GPU:0: Idling display engine timed out: 0x0000c67e:2:0:1116
[ 5012.157679] nvidia-modeset: ERROR: GPU:0: Idling display engine timed out: 0x0000c67e:2:0:1116