kernel 4.18.0-041800-generic on AMD A10 (Kaveri)
kernel boot parameters:
amdgpu.cik_support=3D1=20
radeon.cik_support=3D0=20
amdgpu.dc=3D1=20
amdgpu.dc_log=3D1=20
drm.debug=3D0
Laptop has HDMI, VGA and internal eDP.
Using amdgpu.dc=3D1 to force use of amdgpu instead of radeon driver. This m=
eans
VGA connection is expected to be inoperative. (See bug 105880)
dmesg show Video Coding Engine (VCE) is not successfully starting
[ 0.000000] Command line: BOOT_IMAGE=3D/vmlinuz-4.18.0-041800-generic
root=3D<redacted> amdgpu.cik_support=3D1 radeon.cik_support=3D0 amdgp=
u.dc=3D1
amdgpu.dc_log=3D1 drm.debug=3D0
[ 2.319941] [drm] radeon kernel modesetting enabled.
[ 2.321218] fb: switching to radeondrmfb from EFI VGA
[ 2.371470] [drm] amdgpu kernel modesetting enabled.
[ 2.380860] [drm] initializing kernel modesetting (KAVERI 0x1002:0x130A
0x17AA:0x3988 0x00).
[ 2.380878] [drm] register mmio base: 0xF0B00000
[ 2.380881] [drm] register mmio size: 262144
[ 2.380889] [drm] add ip block number 0 <cik_common>
[ 2.380892] [drm] add ip block number 1 <gmc_v7_0>
[ 2.380895] [drm] add ip block number 2 <cik_ih>
[ 2.380898] [drm] add ip block number 3 <kv_dpm>
[ 2.380901] [drm] add ip block number 4 <dm>
[ 2.380904] [drm] add ip block number 5 <gfx_v7_0>
[ 2.380907] [drm] add ip block number 6 <cik_sdma>
[ 2.380909] [drm] add ip block number 7 <uvd_v4_2>
[ 2.380912] [drm] add ip block number 8 <vce_v2_0>
[ 2.404997] [drm] BIOS signature incorrect 0 0
[ 2.405131] [drm] vm size is 64 GB, 2 levels, block size is 10-bit, frag=
ment
size is 9-bit
[ 2.405153] [drm] Detected VRAM RAM=3D1024M, BAR=3D1024M
[ 2.405155] [drm] RAM width 64bits UNKNOWN
[ 2.405409] [drm] amdgpu: 1024M of VRAM memory ready
[ 2.405412] [drm] amdgpu: 3072M of GTT memory ready.
[ 2.405424] [drm] GART: num cpu pages 262144, num gpu pages 262144
[ 2.405460] [drm] PCIE GART of 1024M enabled (table at 0x000000F4007E900=
0).
[ 2.405542] [drm] Internal thermal controller without fan control
[ 2.405546] [drm] amdgpu: dpm initialized
[ 2.406632] [drm] Found UVD firmware Version: 1.55 Family ID: 9
[ 2.406987] [drm] Found VCE firmware Version: 50.10 Binary ID: 2
[ 2.408834] [drm] Unsupported Connector type:5!
[ 2.409033] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:3! type 0 expected 3
[ 2.409141] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:4! type 0 expected 3
[ 2.409248] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:5! type 0 expected 3
[ 2.409419] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:6! type 0 expected 3
[ 2.420176] [drm] Display Core initialized with v3.1.44!
[ 2.426685] [drm] SADs count is: -2, don't need to read it
[ 2.427264] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 2.427271] [drm] Driver supports precise vblank timestamp query.
[ 2.446238] [drm] UVD initialized successfully.
[ 2.562838] [drm] VCE initialized successfully.
[ 2.567812] [drm] fb mappable at 0xA0BD1000
[ 2.567821] [drm] vram apper at 0xA0000000
[ 2.567824] [drm] size 8294400
[ 2.567826] [drm] fb depth is 24
[ 2.567828] [drm] pitch is 7680
[ 2.567942] fbcon: amdgpudrmfb (fb0) is primary device
[ 2.570418] [drm] dce_get_required_clocks_state: clocks unsupported disp=
_clk
681000 pix_clk 141400
[ 2.600980] amdgpu 0000:00:01.0: fb0: amdgpudrmfb frame buffer device
[ 2.618335] [drm] Initialized amdgpu 3.26.0 20150101 for 0000:00:01.0 on
minor 0
[ 5.754156] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 6.774125] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 7.794092] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 8.812428] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 9.829125] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 10.849149] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 11.869148] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 12.888162] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 13.908161] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 14.928124] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, tr=
ying
to reset the ECPU!!!
[ 14.948142] [drm:vce_v2_0_start [amdgpu]] *ERROR* VCE not responding, gi=
ving
up!!!
[ 14.948181] [drm:amdgpu_device_ip_set_powergating_state [amdgpu]] *ERROR*
set_powergating_state of IP block <vce_v2_0> failed -110
[ 15.964329] [drm:amdgpu_vce_ring_test_ib [amdgpu]] *ERROR* amdgpu: IB te=
st
timed out.
[ 15.964388] [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* amdgpu: failed
testing IB on ring 12 (-110).
[ 15.964425] [drm:amdgpu_device_ip_late_init_func_handler [amdgpu]] *ERRO=
R*
ib ring test failed (-110).
[ 403.874735] [drm] dce_get_required_clocks_state: clocks unsupported disp=
_clk
681000 pix_clk 141400
The laptop screen remains blank, and the cpu fan ramps up. I used the 'magic
SysRq' key combination followed by R E I whereupon it was possible to get to
the first virtual console (Ctrl-Alt-F1) and save the dmesg ring buffer.
kernel 4.17.0-041700 generic does not show this behaviour, and the laptop
screen works, allowing X-Windows login.
[ 0.000000] Kernel command line: BOOT_IMAGE=3D/vmlinuz-4.17.0-041700-gen=
eric
root=3D<redacted> amdgpu.cik_support=3D1 radeon.cik_support=3D0 amdgp=
u.dc=3D1
amdgpu.dc_log=3D1 drm.debug=3D0
[ 2.356844] [drm] radeon kernel modesetting enabled.
[ 2.358519] fb: switching to radeondrmfb from EFI VGA
[ 2.403908] [drm] amdgpu kernel modesetting enabled.
[ 2.412726] [drm] initializing kernel modesetting (KAVERI 0x1002:0x130A
0x17AA:0x3988 0x00).
[ 2.412744] [drm] register mmio base: 0xF0B00000
[ 2.412748] [drm] register mmio size: 262144
[ 2.412757] [drm] add ip block number 0 <cik_common>
[ 2.412760] [drm] add ip block number 1 <gmc_v7_0>
[ 2.412763] [drm] add ip block number 2 <cik_ih>
[ 2.412766] [drm] add ip block number 3 <kv_dpm>
[ 2.412769] [drm] add ip block number 4 <dm>
[ 2.412773] [drm] add ip block number 5 <gfx_v7_0>
[ 2.412776] [drm] add ip block number 6 <cik_sdma>
[ 2.412778] [drm] add ip block number 7 <uvd_v4_2>
[ 2.412781] [drm] add ip block number 8 <vce_v2_0>
[ 2.436383] [drm] BIOS signature incorrect 0 0
[ 2.436506] [drm] vm size is 64 GB, 2 levels, block size is 10-bit, frag=
ment
size is 9-bit
[ 2.436528] [drm] Detected VRAM RAM=3D1024M, BAR=3D1024M
[ 2.436531] [drm] RAM width 64bits UNKNOWN
[ 2.436704] [drm] amdgpu: 1024M of VRAM memory ready
[ 2.436708] [drm] amdgpu: 3072M of GTT memory ready.
[ 2.436720] [drm] GART: num cpu pages 262144, num gpu pages 262144
[ 2.436758] [drm] PCIE GART of 1024M enabled (table at 0x000000F40004000=
0).
[ 2.436843] [drm] Internal thermal controller without fan control
[ 2.436847] [drm] amdgpu: dpm initialized
[ 2.437906] [drm] Found UVD firmware Version: 1.55 Family ID: 9
[ 2.438263] [drm] Found VCE firmware Version: 50.10 Binary ID: 2
[ 2.440362] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:3! type 0 expected 3
[ 2.440455] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:4! type 0 expected 3
[ 2.440547] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:5! type 0 expected 3
[ 2.440674] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:6! type 0 expected 3
[ 2.456216] [drm] Display Core initialized with v3.1.38!
[ 2.462792] [drm] SADs count is: -2, don't need to read it
[ 2.463390] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 2.463397] [drm] Driver supports precise vblank timestamp query.
[ 2.481585] [drm] UVD initialized successfully.
[ 2.598081] [drm] VCE initialized successfully.
[ 2.605222] [drm] fb mappable at 0xA042A000
[ 2.605231] [drm] vram apper at 0xA0000000
[ 2.605234] [drm] size 8294400
[ 2.605236] [drm] fb depth is 24
[ 2.605239] [drm] pitch is 7680
[ 2.605367] fbcon: amdgpudrmfb (fb0) is primary device
[ 2.686915] amdgpu 0000:00:01.0: fb0: amdgpudrmfb frame buffer device
[ 2.706752] [drm] Initialized amdgpu 3.25.0 20150101 for 0000:00:01.0 on
minor 0