RX 850 Ubuntu Driver Problems

I just got a pair of XFX RX 580 card and am having some trouble with the amdgpu-pro drivers.

On a fresh install of Ubuntu 16.04.2, after updating packages, updating the kernel to 4.8, installing the AMDGPU-PRO 17.10 drivers, and rebooting, I see these messages in the log

 

[    5.762089] [drm] amdgpu kernel modesetting enabled.

[    6.247954] fb: switching to amdgpudrmfb from VESA VGA

[    6.293715] amdgpu 0000:03:00.0: Invalid PCI ROM header signature: expecting 0xaa55, got 0xffff

[    6.293776] amdgpu 0000:03:00.0: VRAM: 8192M 0x0000000000000000 - 0x00000001FFFFFFFF (8192M used)

[    6.293781] amdgpu 0000:03:00.0: GTT: 8192M 0x0000000200000000 - 0x00000003FFFFFFFF

[    6.294015] [drm] amdgpu: 8192M of VRAM memory ready

[    6.294018] [drm] amdgpu: 8192M of GTT memory ready.

[    6.295218] amdgpu 0000:03:00.0: amdgpu: using MSI.

[    6.295236] [drm] amdgpu: irq initialized.

[    6.295251] amdgpu: [powerplay] amdgpu: powerplay sw initialized

[    6.295412] amdgpu 0000:03:00.0: fence driver on ring 0 use gpu addr 0x0000000200000008, cpu addr 0xffff929e17d2f008

[    6.295487] amdgpu 0000:03:00.0: fence driver on ring 1 use gpu addr 0x0000000200000018, cpu addr 0xffff929e17d2f018

[    6.295511] amdgpu 0000:03:00.0: fence driver on ring 2 use gpu addr 0x0000000200000028, cpu addr 0xffff929e17d2f028

[    6.295533] amdgpu 0000:03:00.0: fence driver on ring 3 use gpu addr 0x0000000200000038, cpu addr 0xffff929e17d2f038

[    6.295554] amdgpu 0000:03:00.0: fence driver on ring 4 use gpu addr 0x0000000200000048, cpu addr 0xffff929e17d2f048

[    6.295576] amdgpu 0000:03:00.0: fence driver on ring 5 use gpu addr 0x0000000200000058, cpu addr 0xffff929e17d2f058

[    6.295597] amdgpu 0000:03:00.0: fence driver on ring 6 use gpu addr 0x0000000200000068, cpu addr 0xffff929e17d2f068

[    6.295619] amdgpu 0000:03:00.0: fence driver on ring 7 use gpu addr 0x0000000200000078, cpu addr 0xffff929e17d2f078

[    6.295642] amdgpu 0000:03:00.0: fence driver on ring 8 use gpu addr 0x0000000200000088, cpu addr 0xffff929e17d2f088

[    6.295664] amdgpu 0000:03:00.0: fence driver on ring 9 use gpu addr 0x0000000200000098, cpu addr 0xffff929e17d2f098

[    6.295712] amdgpu 0000:03:00.0: fence driver on ring 10 use gpu addr 0x00000002000000a8, cpu addr 0xffff929e17d2f0a8

[    6.295739] amdgpu 0000:03:00.0: fence driver on ring 11 use gpu addr 0x00000002000000b8, cpu addr 0xffff929e17d2f0b8

[    6.296031] amdgpu 0000:03:00.0: fence driver on ring 12 use gpu addr 0x0000000001165420, cpu addr 0xffffc7a44305a420

[    6.296131] amdgpu 0000:03:00.0: fence driver on ring 13 use gpu addr 0x00000002000000d8, cpu addr 0xffff929e17d2f0d8

[    6.296153] amdgpu 0000:03:00.0: fence driver on ring 14 use gpu addr 0x00000002000000e8, cpu addr 0xffff929e17d2f0e8

[    6.335883] amdgpu: [powerplay] [AVFS] Something is broken. See log!

[    6.337792] amdgpu: [powerplay] Can't find requested voltage id in vdd_dep_on_sclk table!

[    6.338808] amdgpu: [powerplay] VDDCI is larger than max VDDCI in VDDCI Voltage Table!

[    6.360080] [drm] amdgpu: freesync_module init done ffff929e1fcc4320.

[    6.523543] fbcon: amdgpudrmfb (fb0) is primary device

[    6.548879] amdgpu 0000:03:00.0: fb0: amdgpudrmfb frame buffer device

[    6.571233] [drm] Initialized amdgpu 3.9.0 20150101 for 0000:03:00.0 on minor 0

[    6.571284] amdgpu 0000:04:00.0: enabling device (0000 -> 0003)

[    6.923915] amdgpu 0000:04:00.0: VRAM: 8192M 0x0000000000000000 - 0x00000001FFFFFFFF (8192M used)

[    6.923942] amdgpu 0000:04:00.0: GTT: 8192M 0x0000000200000000 - 0x00000003FFFFFFFF

[    6.925338] [drm] amdgpu: 8192M of VRAM memory ready

[    6.926015] [drm] amdgpu: 8192M of GTT memory ready.

[    6.929249] amdgpu 0000:04:00.0: amdgpu: using MSI.

[    6.929963] [drm] amdgpu: irq initialized.

[    6.930681] amdgpu: [powerplay] amdgpu: powerplay sw initialized

[    6.931424] amdgpu 0000:04:00.0: fence driver on ring 0 use gpu addr 0x0000000200000008, cpu addr 0xffff929e173a3008

[    6.932274] amdgpu 0000:04:00.0: fence driver on ring 1 use gpu addr 0x0000000200000018, cpu addr 0xffff929e173a3018

[    6.933188] amdgpu 0000:04:00.0: fence driver on ring 2 use gpu addr 0x0000000200000028, cpu addr 0xffff929e173a3028

[    6.934039] amdgpu 0000:04:00.0: fence driver on ring 3 use gpu addr 0x0000000200000038, cpu addr 0xffff929e173a3038

[    6.934894] amdgpu 0000:04:00.0: fence driver on ring 4 use gpu addr 0x0000000200000048, cpu addr 0xffff929e173a3048

[    6.935762] amdgpu 0000:04:00.0: fence driver on ring 5 use gpu addr 0x0000000200000058, cpu addr 0xffff929e173a3058

[    6.936588] amdgpu 0000:04:00.0: fence driver on ring 6 use gpu addr 0x0000000200000068, cpu addr 0xffff929e173a3068

[    6.937371] amdgpu 0000:04:00.0: fence driver on ring 7 use gpu addr 0x0000000200000078, cpu addr 0xffff929e173a3078

[    6.938155] amdgpu 0000:04:00.0: fence driver on ring 8 use gpu addr 0x0000000200000088, cpu addr 0xffff929e173a3088

[    6.938940] amdgpu 0000:04:00.0: fence driver on ring 9 use gpu addr 0x0000000200000098, cpu addr 0xffff929e173a3098

[    6.939736] amdgpu 0000:04:00.0: fence driver on ring 10 use gpu addr 0x00000002000000a8, cpu addr 0xffff929e173a30a8

[    6.940530] amdgpu 0000:04:00.0: fence driver on ring 11 use gpu addr 0x00000002000000b8, cpu addr 0xffff929e173a30b8

[    6.942300] amdgpu 0000:04:00.0: fence driver on ring 12 use gpu addr 0x0000000001165420, cpu addr 0xffffc7a44365a420

[    6.943927] amdgpu 0000:04:00.0: fence driver on ring 13 use gpu addr 0x00000002000000d8, cpu addr 0xffff929e173a30d8

[    6.944784] amdgpu 0000:04:00.0: fence driver on ring 14 use gpu addr 0x00000002000000e8, cpu addr 0xffff929e173a30e8

[    6.985261] amdgpu: [powerplay] [AVFS] Something is broken. See log!

[    6.987157] amdgpu: [powerplay] Can't find requested voltage id in vdd_dep_on_sclk table!

[    7.027313] [drm] amdgpu: freesync_module init done ffff929e176f7660.

[    7.178217] amdgpu 0000:04:00.0: No connectors reported connected with modes

[    7.185402] amdgpu 0000:04:00.0: fb1: amdgpudrmfb frame buffer device

[    7.199483] [drm] Initialized amdgpu 3.9.0 20150101 for 0000:04:00.0 on minor 1

 

Note the messages at 6.33 and 6.98. Something is clearly broken here. Where is the log it mentions?

This is a fresh installation. What is the problem here?