dmesg|egrep -i 'drm|amdgpu' [ 23.351100] [drm] amdgpu kernel modesetting enabled. [ 23.767577] fb: switching to amdgpudrmfb from EFI VGA [ 23.768177] [drm] initializing kernel modesetting (POLARIS10 0x1002:0x67DF 0x1458:0x22D7 0xCF). [ 23.768208] [drm] register mmio base: 0xEFE00000 [ 23.768210] [drm] register mmio size: 262144 [ 23.768235] [drm] probing gen 2 caps for device 8086:1901 = 261ad03/e [ 23.768238] [drm] probing mlw for device 8086:1901 = 261ad03 [ 23.768260] [drm] UVD is enabled in VM mode [ 23.768262] [drm] VCE enabled in VM mode [ 23.768457] amdgpu 0000:01:00.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0xffff [ 23.768578] [drm] GPU post is not needed [ 23.768891] [drm] vm size is 64 GB, block size is 13-bit, fragment size is 4-bit [ 23.939262] amdgpu 0000:01:00.0: VRAM: 4096M 0x000000F400000000 - 0x000000F4FFFFFFFF (4096M used) [ 23.939267] amdgpu 0000:01:00.0: GTT: 256M 0x0000000000000000 - 0x000000000FFFFFFF [ 23.939309] [drm] Detected VRAM RAM=4096M, BAR=256M [ 23.939311] [drm] RAM width 256bits GDDR5 [ 23.939470] [drm] amdgpu: 4096M of VRAM memory ready [ 23.939472] [drm] amdgpu: 4096M of GTT memory ready. [ 23.939489] [drm] GART: num cpu pages 65536, num gpu pages 65536 [ 23.939600] [drm] PCIE GART of 256M enabled (table at 0x000000F400040000). [ 23.939658] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 23.939659] [drm] Driver supports precise vblank timestamp query. [ 23.939722] amdgpu 0000:01:00.0: amdgpu: using MSI. [ 23.939767] [drm] amdgpu: irq initialized. [ 24.062147] amdgpu: [powerplay] amdgpu: powerplay sw initialized [ 24.062320] [drm] AMDGPU Display Connectors [ 24.062321] [drm] Connector 0: [ 24.062321] [drm] DP-1 [ 24.062321] [drm] HPD6 [ 24.062322] [drm] DDC: 0x4868 0x4868 0x4869 0x4869 0x486a 0x486a 0x486b 0x486b [ 24.062322] [drm] Encoders: [ 24.062323] [drm] DFP1: INTERNAL_UNIPHY2 [ 24.062323] [drm] Connector 1: [ 24.062323] [drm] DP-2 [ 24.062323] [drm] HPD4 [ 24.062324] [drm] DDC: 0x4870 0x4870 0x4871 0x4871 0x4872 0x4872 0x4873 0x4873 [ 24.062324] [drm] Encoders: [ 24.062324] [drm] DFP2: INTERNAL_UNIPHY2 [ 24.062325] [drm] Connector 2: [ 24.062325] [drm] DP-3 [ 24.062325] [drm] HPD1 [ 24.062326] [drm] DDC: 0x486c 0x486c 0x486d 0x486d 0x486e 0x486e 0x486f 0x486f [ 24.062326] [drm] Encoders: [ 24.062326] [drm] DFP3: INTERNAL_UNIPHY1 [ 24.062327] [drm] Connector 3: [ 24.062327] [drm] HDMI-A-1 [ 24.062327] [drm] HPD5 [ 24.062328] [drm] DDC: 0x4874 0x4874 0x4875 0x4875 0x4876 0x4876 0x4877 0x4877 [ 24.062328] [drm] Encoders: [ 24.062328] [drm] DFP4: INTERNAL_UNIPHY1 [ 24.062328] [drm] Connector 4: [ 24.062329] [drm] DVI-D-1 [ 24.062329] [drm] HPD3 [ 24.062329] [drm] DDC: 0x487c 0x487c 0x487d 0x487d 0x487e 0x487e 0x487f 0x487f [ 24.062330] [drm] Encoders: [ 24.062330] [drm] DFP5: INTERNAL_UNIPHY [ 24.262283] amdgpu 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000000400040, cpu addr 0xffffaa9601f75040 [ 24.262416] amdgpu 0000:01:00.0: fence driver on ring 1 use gpu addr 0x00000000004000c0, cpu addr 0xffffaa9601f750c0 [ 24.262489] amdgpu 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000000400140, cpu addr 0xffffaa9601f75140 [ 24.262546] amdgpu 0000:01:00.0: fence driver on ring 3 use gpu addr 0x00000000004001c0, cpu addr 0xffffaa9601f751c0 [ 24.262598] amdgpu 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000000400240, cpu addr 0xffffaa9601f75240 [ 24.262655] amdgpu 0000:01:00.0: fence driver on ring 5 use gpu addr 0x00000000004002c0, cpu addr 0xffffaa9601f752c0 [ 24.262721] amdgpu 0000:01:00.0: fence driver on ring 6 use gpu addr 0x0000000000400340, cpu addr 0xffffaa9601f75340 [ 24.262785] amdgpu 0000:01:00.0: fence driver on ring 7 use gpu addr 0x00000000004003c0, cpu addr 0xffffaa9601f753c0 [ 24.262838] amdgpu 0000:01:00.0: fence driver on ring 8 use gpu addr 0x0000000000400440, cpu addr 0xffffaa9601f75440 [ 24.262875] amdgpu 0000:01:00.0: fence driver on ring 9 use gpu addr 0x00000000004004e0, cpu addr 0xffffaa9601f754e0 [ 24.279807] amdgpu 0000:01:00.0: fence driver on ring 10 use gpu addr 0x0000000000400560, cpu addr 0xffffaa9601f75560 [ 24.279888] amdgpu 0000:01:00.0: fence driver on ring 11 use gpu addr 0x00000000004005e0, cpu addr 0xffffaa9601f755e0 [ 24.291200] [drm] Found UVD firmware Version: 1.79 Family ID: 16 [ 24.291609] amdgpu 0000:01:00.0: fence driver on ring 12 use gpu addr 0x000000f4002ad420, cpu addr 0xffffaa9604e5a420 [ 24.298505] [drm] Found VCE firmware Version: 52.4 Binary ID: 3 [ 24.298640] amdgpu 0000:01:00.0: fence driver on ring 13 use gpu addr 0x00000000004006e0, cpu addr 0xffffaa9601f756e0 [ 24.298708] amdgpu 0000:01:00.0: fence driver on ring 14 use gpu addr 0x0000000000400760, cpu addr 0xffffaa9601f75760 [ 24.360304] [drm] ring test on 0 succeeded in 14 usecs [ 24.360802] [drm] ring test on 9 succeeded in 10 usecs [ 24.360819] [drm] ring test on 1 succeeded in 8 usecs [ 24.360858] [drm] ring test on 2 succeeded in 20 usecs [ 24.360886] [drm] ring test on 3 succeeded in 14 usecs [ 24.360914] [drm] ring test on 4 succeeded in 14 usecs [ 24.360943] [drm] ring test on 5 succeeded in 14 usecs [ 24.360971] [drm] ring test on 6 succeeded in 14 usecs [ 24.360997] [drm] ring test on 7 succeeded in 13 usecs [ 24.361025] [drm] ring test on 8 succeeded in 14 usecs [ 24.361069] [drm] ring test on 10 succeeded in 6 usecs [ 24.361075] [drm] ring test on 11 succeeded in 6 usecs [ 24.388044] [drm] ring test on 12 succeeded in 1 usecs [ 24.388044] [drm] UVD initialized successfully. [ 24.489029] [drm] ring test on 13 succeeded in 7 usecs [ 24.489039] [drm] ring test on 14 succeeded in 3 usecs [ 24.489039] [drm] VCE initialized successfully. [ 24.489208] [drm] ib test on ring 0 succeeded [ 24.489345] [drm] ib test on ring 1 succeeded [ 24.489401] [drm] ib test on ring 2 succeeded [ 24.489446] [drm] ib test on ring 3 succeeded [ 24.489490] [drm] ib test on ring 4 succeeded [ 24.489535] [drm] ib test on ring 5 succeeded [ 24.489579] [drm] ib test on ring 6 succeeded [ 24.489624] [drm] ib test on ring 7 succeeded [ 24.489668] [drm] ib test on ring 8 succeeded [ 25.010003] [drm] ib test on ring 9 succeeded [ 25.010029] [drm] ib test on ring 10 succeeded [ 25.010048] [drm] ib test on ring 11 succeeded [ 25.011704] [drm] ib test on ring 12 succeeded [ 25.011931] [drm] ib test on ring 13 succeeded [ 25.179823] [drm] fb mappable at 0xD04B7000 [ 25.179824] [drm] vram apper at 0xD0000000 [ 25.179825] [drm] size 8294400 [ 25.179825] [drm] fb depth is 24 [ 25.179825] [drm] pitch is 7680 [ 25.179888] fbcon: amdgpudrmfb (fb0) is primary device [ 25.529138] amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device [ 25.540429] amdgpu 0000:01:00.0: kfd not supported on this ASIC [ 25.540436] [drm] Initialized amdgpu 3.19.0 20150101 for 0000:01:00.0 on minor 0