# dmesg | grep AMDGPU
[    5.074824] [drm] AMDGPU Display Connectors

# dmesg | grep amdgpu
[    4.931414] [drm] amdgpu kernel modesetting enabled.
[    4.962126] amdgpu 0000:01:00.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0xffff
[    4.967546] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_mc.bin
[    4.967606] amdgpu 0000:01:00.0: VRAM: 4096M 0x0000000000000000 - 0x00000000FFFFFFFF (4096M used)
[    4.967661] amdgpu 0000:01:00.0: GTT: 4096M 0x0000000100000000 - 0x00000001FFFFFFFF
[    4.968060] [drm] amdgpu: 4096M of VRAM memory ready
[    4.968199] [drm] amdgpu: 4096M of GTT memory ready.
[    4.969648] amdgpu 0000:01:00.0: amdgpu: using MSI.
[    4.969708] [drm] amdgpu: irq initialized.
[    5.074667] amdgpu: [powerplay] amdgpu: powerplay sw initialized
[    5.076588] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_pfp.bin
[    5.076922] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_me.bin
[    5.077515] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_ce.bin
[    5.078273] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_rlc.bin
[    5.080173] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_mec.bin
[    5.082924] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_mec2.bin
[    5.083031] amdgpu 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000100000008, cpu addr 0xffff9a4f72d9f008
[    5.083119] amdgpu 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000100000018, cpu addr 0xffff9a4f72d9f018
[    5.083217] amdgpu 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000100000028, cpu addr 0xffff9a4f72d9f028
[    5.083304] amdgpu 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000100000038, cpu addr 0xffff9a4f72d9f038
[    5.083387] amdgpu 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000100000048, cpu addr 0xffff9a4f72d9f048
[    5.083476] amdgpu 0000:01:00.0: fence driver on ring 5 use gpu addr 0x0000000100000058, cpu addr 0xffff9a4f72d9f058
[    5.083550] amdgpu 0000:01:00.0: fence driver on ring 6 use gpu addr 0x0000000100000068, cpu addr 0xffff9a4f72d9f068
[    5.083629] amdgpu 0000:01:00.0: fence driver on ring 7 use gpu addr 0x0000000100000078, cpu addr 0xffff9a4f72d9f078
[    5.083700] amdgpu 0000:01:00.0: fence driver on ring 8 use gpu addr 0x0000000100000088, cpu addr 0xffff9a4f72d9f088
[    5.083765] amdgpu 0000:01:00.0: fence driver on ring 9 use gpu addr 0x000000010000009c, cpu addr 0xffff9a4f72d9f09c
[    5.084457] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_sdma.bin
[    5.086444] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_sdma1.bin
[    5.086527] amdgpu 0000:01:00.0: fence driver on ring 10 use gpu addr 0x00000001000000ac, cpu addr 0xffff9a4f72d9f0ac
[    5.086621] amdgpu 0000:01:00.0: fence driver on ring 11 use gpu addr 0x00000001000000bc, cpu addr 0xffff9a4f72d9f0bc
[    5.092812] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_uvd.bin
[    5.093193] amdgpu 0000:01:00.0: fence driver on ring 12 use gpu addr 0x0000000000a2d420, cpu addr 0xffffaf37c285a420
[    5.095672] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_vce.bin
[    5.095838] amdgpu 0000:01:00.0: fence driver on ring 13 use gpu addr 0x00000001000000dc, cpu addr 0xffff9a4f72d9f0dc
[    5.098910] amdgpu 0000:01:00.0: fence driver on ring 14 use gpu addr 0x00000001000000ec, cpu addr 0xffff9a4f72d9f0ec
[    5.102230] amdgpu 0000:01:00.0: firmware: direct-loading firmware amdgpu/polaris10_k_smc.bin
[    5.142764] amdgpu: [powerplay] [AVFS] Something is broken. See log!
[    5.144653] amdgpu: [powerplay] Can't find requested voltage id in vdd_dep_on_sclk table!
[    5.145761] amdgpu: [powerplay] VDDCI is larger than max VDDCI in VDDCI Voltage Table!
[    5.929373] fbcon: amdgpudrmfb (fb0) is primary device
[    6.392033] amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device
[    6.420270] [drm] Initialized amdgpu 3.18.0 20150101 for 0000:01:00.0 on minor 0