I wonder if this is same issue I encountered with my mobile CIK on AMDGPU non-DC reporting a bogus TV connector? What debugging options would you like me to turn on? Thanks, Shawn Output below cmdline options: amdgpu.cik_support=1 drm_kms_helper.poll=0 amdgpu.dc=1 * I use drm_kms_helper.poll=0 to stop DRM from resetting display to wrong resolution when switching screens using a device KVM switch port. ATOM BIOS: BR44934.001 (included in Dell BIOS release A19, 05/14/2017) relevant dmesg below: [ 2.375799] [drm] initializing kernel modesetting (BONAIRE 0x1002:0x6640 0x1028:0x15CD 0x00). [ 2.375809] [drm] register mmio base: 0xF7E00000 [ 2.375810] [drm] register mmio size: 262144 [ 2.375816] [drm] probing gen 2 caps for device 8086:c01 = 261ad03/e [ 2.375818] [drm] probing mlw for device 8086:c01 = 261ad03 ..... [ 2.375926] ATOM BIOS: BR44934.001 [ 2.375934] [drm] GPU post is not needed [ 2.375935] [drm] Changing default dispclk from 600Mhz to 625Mhz [ 2.375948] [drm] vm size is 64 GB, block size is 13-bit, fragment size is 9-bit [ 2.375989] amdgpu 0000:01:00.0: VRAM: 2048M 0x000000F400000000 - 0x000000F47FFFFFFF (2048M used) [ 2.375991] amdgpu 0000:01:00.0: GTT: 1024M 0x0000000000000000 - 0x000000003FFFFFFF [ 2.375995] [drm] Detected VRAM RAM=2048M, BAR=256M [ 2.375996] [drm] RAM width 128bits GDDR5 [ 2.376046] [TTM] Zone kernel: Available graphics memory: 16440090 kiB [ 2.376048] [TTM] Zone dma32: Available graphics memory: 2097152 kiB [ 2.376049] [TTM] Initializing pool allocator [ 2.376051] [TTM] Initializing DMA pool allocator [ 2.376065] [drm] amdgpu: 2048M of VRAM memory ready [ 2.376066] [drm] amdgpu: 3072M of GTT memory ready. [ 2.376073] [drm] GART: num cpu pages 262144, num gpu pages 262144 [ 2.376552] [drm] PCIE GART of 1024M enabled (table at 0x000000F400040000). [ 2.376606] amdgpu 0000:01:00.0: amdgpu: using MSI. [ 2.376628] [drm] amdgpu: irq initialized. [ 2.376666] [drm] Internal thermal controller without fan control [ 2.376678] [drm] amdgpu: dpm initialized [ 2.376766] amdgpu 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000000400080, cpu addr 0xffffb0fc43369080 [ 2.376795] amdgpu 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000000400100, cpu addr 0xffffb0fc43369100 [ 2.376817] amdgpu 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000000400180, cpu addr 0xffffb0fc43369180 [ 2.376843] amdgpu 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000000400200, cpu addr 0xffffb0fc43369200 [ 2.376866] amdgpu 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000000400280, cpu addr 0xffffb0fc43369280 [ 2.376896] amdgpu 0000:01:00.0: fence driver on ring 5 use gpu addr 0x0000000000400300, cpu addr 0xffffb0fc43369300 [ 2.376915] amdgpu 0000:01:00.0: fence driver on ring 6 use gpu addr 0x0000000000400380, cpu addr 0xffffb0fc43369380 [ 2.376936] amdgpu 0000:01:00.0: fence driver on ring 7 use gpu addr 0x0000000000400400, cpu addr 0xffffb0fc43369400 [ 2.376956] amdgpu 0000:01:00.0: fence driver on ring 8 use gpu addr 0x0000000000400480, cpu addr 0xffffb0fc43369480 [ 2.377018] amdgpu 0000:01:00.0: fence driver on ring 9 use gpu addr 0x0000000000400500, cpu addr 0xffffb0fc43369500 [ 2.377042] amdgpu 0000:01:00.0: fence driver on ring 10 use gpu addr 0x0000000000400580, cpu addr 0xffffb0fc43369580 [ 2.377095] [drm] Found UVD firmware Version: 1.64 Family ID: 9 [ 2.377315] amdgpu 0000:01:00.0: fence driver on ring 11 use gpu addr 0x000000f40028bd30, cpu addr 0xffffb0fc43e38d30 [ 2.377349] [drm] Found VCE firmware Version: 50.10 Binary ID: 2 [ 2.377393] amdgpu 0000:01:00.0: fence driver on ring 12 use gpu addr 0x0000000000400680, cpu addr 0xffffb0fc43369680 [ 2.377412] amdgpu 0000:01:00.0: fence driver on ring 13 use gpu addr 0x0000000000400700, cpu addr 0xffffb0fc43369700 [ 2.377484] [drm] PCIE gen 3 link speeds already enabled [ 2.385244] clocksource: Switched to clocksource tsc [ 2.385318] [drm] DC: create_links: connectors_num: physical:6, virtual:0 [ 2.385381] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector ObjectID from Adapter Service for connector index:1! [ 2.385383] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385386] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385388] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385390] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385393] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385394] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385405] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385407] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385409] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385410] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385412] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385414] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385424] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385426] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385428] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385429] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385431] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385433] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.385443] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.392056] [drm] Display Core initialized! [ 2.392225] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.392351] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.392436] [drm] dal_graphics_object_id_is_equal: Warning: comparing invalid object 'id2'! [ 2.392450] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 2.392452] [drm] Driver supports precise vblank timestamp query. [ 2.394688] [drm] ring test on 0 succeeded in 14 usecs [ 2.394947] [drm] ring test on 1 succeeded in 2 usecs [ 2.394973] [drm] ring test on 2 succeeded in 10 usecs [ 2.394998] [drm] ring test on 3 succeeded in 12 usecs [ 2.395023] [drm] ring test on 4 succeeded in 13 usecs [ 2.395048] [drm] ring test on 5 succeeded in 12 usecs [ 2.395073] [drm] ring test on 6 succeeded in 12 usecs [ 2.395097] [drm] ring test on 7 succeeded in 12 usecs [ 2.395123] [drm] ring test on 8 succeeded in 13 usecs [ 2.395281] [drm] ring test on 9 succeeded in 4 usecs [ 2.395286] [drm] ring test on 10 succeeded in 4 usecs [ 2.432047] [drm] ring test on 11 succeeded in 1 usecs [ 2.432049] [drm] UVD initialized successfully. [ 2.561036] [drm] ring test on 12 succeeded in 7 usecs [ 2.561043] [drm] ring test on 13 succeeded in 1 usecs [ 2.561044] [drm] VCE initialized successfully. [ 2.561252] [drm] ib test on ring 0 succeeded [ 2.561328] [drm] ib test on ring 1 succeeded [ 2.561411] [drm] ib test on ring 2 succeeded [ 2.561453] [drm] ib test on ring 3 succeeded [ 2.561493] [drm] ib test on ring 4 succeeded [ 2.561520] [drm] ib test on ring 5 succeeded [ 2.561547] [drm] ib test on ring 6 succeeded [ 2.561564] [drm] ib test on ring 7 succeeded [ 2.561584] [drm] ib test on ring 8 succeeded [ 2.561597] [drm] ib test on ring 9 succeeded [ 2.561610] [drm] ib test on ring 10 succeeded [ 2.561921] [drm] ib test on ring 11 succeeded [ 2.562231] [drm] ib test on ring 12 succeeded [ 2.562237] [drm] Cannot find any crtc or sizes [ 2.563522] amdgpu 0000:01:00.0: kfd not supported on this ASIC [ 2.563531] [drm] Initialized amdgpu 3.23.0 20150101 for 0000:01:00.0 on minor 0