$ dmesg|egrep -i 'drm|amdgpu' [ 7.533020] [drm] amdgpu kernel modesetting enabled. [ 7.534548] [drm] initializing kernel modesetting (POLARIS10 0x1002:0x67DF 0x1458:0x22F1 0xE7). [ 7.534560] [drm] register mmio base: 0xFE780000 [ 7.534561] [drm] register mmio size: 262144 [ 7.534572] [drm] probing gen 2 caps for device 8086:29c1 = 2012501/0 [ 7.534574] [drm] probing mlw for device 8086:29c1 = 2012501 [ 7.534584] [drm] UVD is enabled in VM mode [ 7.534586] [drm] VCE enabled in VM mode [ 7.534915] [drm] GPU post is not needed [ 7.535134] [drm] vm size is 64 GB, block size is 13-bit, fragment size is 4-bit [ 7.758667] amdgpu 0000:01:00.0: VRAM: 8192M 0x000000F400000000 - 0x000000F5FFFFFFFF (8192M used) [ 7.758670] amdgpu 0000:01:00.0: GTT: 256M 0x0000000000000000 - 0x000000000FFFFFFF [ 7.758680] [drm] Detected VRAM RAM=8192M, BAR=256M [ 7.758682] [drm] RAM width 256bits GDDR5 [ 7.758780] [drm] amdgpu: 8192M of VRAM memory ready [ 7.758781] [drm] amdgpu: 8192M of GTT memory ready. [ 7.758797] [drm] GART: num cpu pages 65536, num gpu pages 65536 [ 7.758844] [drm] PCIE GART of 256M enabled (table at 0x000000F400040000). [ 7.758895] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 7.758896] [drm] Driver supports precise vblank timestamp query. [ 7.758938] amdgpu 0000:01:00.0: amdgpu: using MSI. [ 7.758961] [drm] amdgpu: irq initialized. [ 7.909562] amdgpu: [powerplay] amdgpu: powerplay sw initialized [ 7.909884] [drm] AMDGPU Display Connectors [ 7.909886] [drm] Connector 0: [ 7.909886] [drm] DP-1 [ 7.909887] [drm] HPD6 [ 7.909889] [drm] DDC: 0x4868 0x4868 0x4869 0x4869 0x486a 0x486a 0x486b 0x486b [ 7.909889] [drm] Encoders: [ 7.909890] [drm] DFP1: INTERNAL_UNIPHY2 [ 7.909891] [drm] Connector 1: [ 7.909892] [drm] DP-2 [ 7.909893] [drm] HPD4 [ 7.909894] [drm] DDC: 0x4870 0x4870 0x4871 0x4871 0x4872 0x4872 0x4873 0x4873 [ 7.909895] [drm] Encoders: [ 7.909896] [drm] DFP2: INTERNAL_UNIPHY2 [ 7.909896] [drm] Connector 2: [ 7.909897] [drm] DP-3 [ 7.909898] [drm] HPD1 [ 7.909899] [drm] DDC: 0x486c 0x486c 0x486d 0x486d 0x486e 0x486e 0x486f 0x486f [ 7.909900] [drm] Encoders: [ 7.909901] [drm] DFP3: INTERNAL_UNIPHY1 [ 7.909901] [drm] Connector 3: [ 7.909902] [drm] HDMI-A-1 [ 7.909903] [drm] HPD5 [ 7.909904] [drm] DDC: 0x4874 0x4874 0x4875 0x4875 0x4876 0x4876 0x4877 0x4877 [ 7.909905] [drm] Encoders: [ 7.909906] [drm] DFP4: INTERNAL_UNIPHY1 [ 7.909906] [drm] Connector 4: [ 7.909907] [drm] DVI-D-1 [ 7.909908] [drm] HPD3 [ 7.909909] [drm] DDC: 0x487c 0x487c 0x487d 0x487d 0x487e 0x487e 0x487f 0x487f [ 7.909910] [drm] Encoders: [ 7.909911] [drm] DFP5: INTERNAL_UNIPHY [ 7.988479] amdgpu 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000000400040, cpu addr 0xffffc900001d5040 [ 7.988527] amdgpu 0000:01:00.0: fence driver on ring 1 use gpu addr 0x00000000004000c0, cpu addr 0xffffc900001d50c0 [ 7.988561] amdgpu 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000000400140, cpu addr 0xffffc900001d5140 [ 7.988596] amdgpu 0000:01:00.0: fence driver on ring 3 use gpu addr 0x00000000004001c0, cpu addr 0xffffc900001d51c0 [ 7.988627] amdgpu 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000000400240, cpu addr 0xffffc900001d5240 [ 7.988662] amdgpu 0000:01:00.0: fence driver on ring 5 use gpu addr 0x00000000004002c0, cpu addr 0xffffc900001d52c0 [ 7.988691] amdgpu 0000:01:00.0: fence driver on ring 6 use gpu addr 0x0000000000400340, cpu addr 0xffffc900001d5340 [ 7.988726] amdgpu 0000:01:00.0: fence driver on ring 7 use gpu addr 0x00000000004003c0, cpu addr 0xffffc900001d53c0 [ 7.988757] amdgpu 0000:01:00.0: fence driver on ring 8 use gpu addr 0x0000000000400440, cpu addr 0xffffc900001d5440 [ 7.988791] amdgpu 0000:01:00.0: fence driver on ring 9 use gpu addr 0x00000000004004e0, cpu addr 0xffffc900001d54e0 [ 8.091778] amdgpu 0000:01:00.0: fence driver on ring 10 use gpu addr 0x0000000000400560, cpu addr 0xffffc900001d5560 [ 8.091838] amdgpu 0000:01:00.0: fence driver on ring 11 use gpu addr 0x00000000004005e0, cpu addr 0xffffc900001d55e0 [ 8.108559] [drm] Found UVD firmware Version: 1.79 Family ID: 16 [ 8.109174] amdgpu 0000:01:00.0: fence driver on ring 12 use gpu addr 0x000000f4002ad420, cpu addr 0xffffc9000185a420 [ 8.200414] [drm] Found VCE firmware Version: 52.4 Binary ID: 3 [ 8.200559] amdgpu 0000:01:00.0: fence driver on ring 13 use gpu addr 0x00000000004006e0, cpu addr 0xffffc900001d56e0 [ 8.200610] amdgpu 0000:01:00.0: fence driver on ring 14 use gpu addr 0x0000000000400760, cpu addr 0xffffc900001d5760 [ 8.277575] [drm] ring test on 0 succeeded in 14 usecs [ 8.278065] [drm] ring test on 9 succeeded in 10 usecs [ 8.278083] [drm] ring test on 1 succeeded in 8 usecs [ 8.278122] [drm] ring test on 2 succeeded in 19 usecs [ 8.278150] [drm] ring test on 3 succeeded in 13 usecs [ 8.278178] [drm] ring test on 4 succeeded in 13 usecs [ 8.278206] [drm] ring test on 5 succeeded in 13 usecs [ 8.278234] [drm] ring test on 6 succeeded in 13 usecs [ 8.278262] [drm] ring test on 7 succeeded in 13 usecs [ 8.278289] [drm] ring test on 8 succeeded in 13 usecs [ 8.278337] [drm] ring test on 10 succeeded in 5 usecs [ 8.278344] [drm] ring test on 11 succeeded in 5 usecs [ 8.324993] [drm] ring test on 12 succeeded in 1 usecs [ 8.324995] [drm] UVD initialized successfully. [ 8.436978] [drm] ring test on 13 succeeded in 7 usecs [ 8.436989] [drm] ring test on 14 succeeded in 3 usecs [ 8.436990] [drm] VCE initialized successfully. [ 8.437449] [drm] ib test on ring 0 succeeded [ 8.437595] [drm] ib test on ring 1 succeeded [ 8.437649] [drm] ib test on ring 2 succeeded [ 8.437693] [drm] ib test on ring 3 succeeded [ 8.437737] [drm] ib test on ring 4 succeeded [ 8.437787] [drm] ib test on ring 5 succeeded [ 8.437831] [drm] ib test on ring 6 succeeded [ 8.437876] [drm] ib test on ring 7 succeeded [ 8.437920] [drm] ib test on ring 8 succeeded [ 8.960000] [drm] ib test on ring 9 succeeded [ 8.960038] [drm] ib test on ring 10 succeeded [ 8.960064] [drm] ib test on ring 11 succeeded [ 8.961648] [drm] ib test on ring 12 succeeded [ 8.961859] [drm] ib test on ring 13 succeeded [ 9.094796] [drm] fb mappable at 0xD04B7000 [ 9.094798] [drm] vram apper at 0xD0000000 [ 9.094799] [drm] size 5324800 [ 9.094800] [drm] fb depth is 24 [ 9.094801] [drm] pitch is 5888 [ 9.094888] fbcon: amdgpudrmfb (fb0) is primary device [ 9.443466] amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device [ 9.443764] [drm] Initialized amdgpu 3.19.0 20150101 for 0000:01:00.0 on minor 0 $