Comment # 2
on bug 102053
from Luya Tshimbalanga
Created attachment 133275 [details]
Complete dmesg info from X550ZE laptop
Here is partial info from dmesg with amdgpu enabled for the SI card:
dmesg | grep amdgpu
[ 0.000000] Command line:
BOOT_IMAGE=/vmlinuz-4.11.12-20170727.amdmainhyb.fc26.x86_64
root=UUID=232c0ccf-375a-4e4d-a080-9986ea920e1c ro rhgb quiet resume=/dev/sda9
LANG=en_CA.UTF-8 amdgpu.si_support=1 radeon.si_support=0
[ 0.000000] Kernel command line:
BOOT_IMAGE=/vmlinuz-4.11.12-20170727.amdmainhyb.fc26.x86_64
root=UUID=232c0ccf-375a-4e4d-a080-9986ea920e1c ro rhgb quiet resume=/dev/sda9
LANG=en_CA.UTF-8 amdgpu.si_support=1 radeon.si_support=0
[ 3.387717] radeon 0000:00:01.0: CIK support provided by amdgpu.
[ 3.387718] radeon 0000:00:01.0: Use radeon.cik_support=1
amdgpu.cik_support=0 to override.
[ 3.546929] [drm] amdgpu kernel modesetting enabled.
[ 3.548179] amdgpu 0000:00:01.0: VRAM: 1024M 0x000000F400000000 -
0x000000F43FFFFFFF (1024M used)
[ 3.548181] amdgpu 0000:00:01.0: GTT: 256M 0x0000000000000000 -
0x000000000FFFFFFF
[ 3.548396] [drm] amdgpu: 1024M of VRAM memory ready
[ 3.548397] [drm] amdgpu: 3072M of GTT memory ready.
[ 3.548500] amdgpu 0000:00:01.0: amdgpu: using MSI.
[ 3.548522] [drm] amdgpu: irq initialized.
[ 3.548531] [drm] amdgpu: dpm initialized
[ 3.549146] [drm] amdgpu atom DIG backlight initialized
[ 3.549429] amdgpu 0000:00:01.0: fence driver on ring 0 use gpu addr
0x0000000000400010, cpu addr 0xffff918e380ed010
[ 3.549522] amdgpu 0000:00:01.0: fence driver on ring 1 use gpu addr
0x0000000000400020, cpu addr 0xffff918e380ed020
[ 3.549604] amdgpu 0000:00:01.0: fence driver on ring 2 use gpu addr
0x0000000000400030, cpu addr 0xffff918e380ed030
[ 3.549660] amdgpu 0000:00:01.0: fence driver on ring 3 use gpu addr
0x0000000000400040, cpu addr 0xffff918e380ed040
[ 3.549740] amdgpu 0000:00:01.0: fence driver on ring 4 use gpu addr
0x0000000000400050, cpu addr 0xffff918e380ed050
[ 3.549781] amdgpu 0000:00:01.0: fence driver on ring 5 use gpu addr
0x0000000000400060, cpu addr 0xffff918e380ed060
[ 3.549826] amdgpu 0000:00:01.0: fence driver on ring 6 use gpu addr
0x0000000000400070, cpu addr 0xffff918e380ed070
[ 3.549864] amdgpu 0000:00:01.0: fence driver on ring 7 use gpu addr
0x0000000000400080, cpu addr 0xffff918e380ed080
[ 3.549903] amdgpu 0000:00:01.0: fence driver on ring 8 use gpu addr
0x0000000000400090, cpu addr 0xffff918e380ed090
[ 3.550003] amdgpu 0000:00:01.0: fence driver on ring 9 use gpu addr
0x00000000004000a0, cpu addr 0xffff918e380ed0a0
[ 3.550047] amdgpu 0000:00:01.0: fence driver on ring 10 use gpu addr
0x00000000004000b0, cpu addr 0xffff918e380ed0b0
[ 3.550393] amdgpu 0000:00:01.0: fence driver on ring 11 use gpu addr
0x000000f40010cd30, cpu addr 0xffff9edf42a38d30
[ 3.550533] amdgpu 0000:00:01.0: fence driver on ring 12 use gpu addr
0x00000000004000d0, cpu addr 0xffff918e380ed0d0
[ 3.550579] amdgpu 0000:00:01.0: fence driver on ring 13 use gpu addr
0x00000000004000e0, cpu addr 0xffff918e380ed0e0
[ 4.653332] fbcon: amdgpudrmfb (fb0) is primary device
[ 8.243667] amdgpu 0000:00:01.0: fb0: amdgpudrmfb frame buffer device
[ 8.255318] [drm] Initialized amdgpu 3.18.0 20150101 for 0000:00:01.0 on
minor 0
[ 8.303431] amdgpu 0000:01:00.0: VRAM: 2048M 0x000000F400000000 -
0x000000F47FFFFFFF (2048M used)
[ 8.303433] amdgpu 0000:01:00.0: GTT: 256M 0x0000000000000000 -
0x000000000FFFFFFF
[ 8.303463] [drm] amdgpu: 2048M of VRAM memory ready
[ 8.303464] [drm] amdgpu: 3072M of GTT memory ready.
[ 8.303844] amdgpu 0000:01:00.0: PCIE GART of 256M enabled (table at
0x000000F400040000).
[ 8.303912] amdgpu 0000:01:00.0: amdgpu: using MSI.
[ 8.303936] [drm] amdgpu: irq initialized.
[ 8.304054] [drm] amdgpu: dpm initialized
[ 8.306354] amdgpu 0000:01:00.0: fence driver on ring 0 use gpu addr
0x0000000000400010, cpu addr 0xffff918e377c7010
[ 8.306411] amdgpu 0000:01:00.0: fence driver on ring 1 use gpu addr
0x0000000000400020, cpu addr 0xffff918e377c7020
[ 8.306483] amdgpu 0000:01:00.0: fence driver on ring 2 use gpu addr
0x0000000000400030, cpu addr 0xffff918e377c7030
[ 8.306612] amdgpu 0000:01:00.0: fence driver on ring 3 use gpu addr
0x0000000000400040, cpu addr 0xffff918e377c7040
[ 8.306660] amdgpu 0000:01:00.0: fence driver on ring 4 use gpu addr
0x0000000000400050, cpu addr 0xffff918e377c7050
[ 8.307009] [drm] enabling PCIE gen 3 link speeds, disable with
amdgpu.pcie_gen2=0
[ 9.881866] [drm] Initialized amdgpu 3.18.0 20150101 for 0000:01:00.0 on
minor 1
[ 24.950246] audit: type=1130 audit(1502081854.489:64): pid=1 uid=0
auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0
msg='unit=systemd-backlight@backlight:amdgpu_bl0 comm="systemd"
exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ 252.329372] [drm] enabling PCIE gen 3 link speeds, disable with
amdgpu.pcie_gen2=0
[ 253.697379] amdgpu 0000:01:00.0: PCIE GART of 256M enabled (table at
0x000000F400040000).
Result with disabled radeon driver:
dmesg | grep radeon
[ 0.000000] Command line:
BOOT_IMAGE=/vmlinuz-4.11.12-20170727.amdmainhyb.fc26.x86_64
root=UUID=232c0ccf-375a-4e4d-a080-9986ea920e1c ro rhgb quiet resume=/dev/sda9
LANG=en_CA.UTF-8 amdgpu.si_support=1 radeon.si_support=0
[ 0.000000] Kernel command line:
BOOT_IMAGE=/vmlinuz-4.11.12-20170727.amdmainhyb.fc26.x86_64
root=UUID=232c0ccf-375a-4e4d-a080-9986ea920e1c ro rhgb quiet resume=/dev/sda9
LANG=en_CA.UTF-8 amdgpu.si_support=1 radeon.si_support=0
[ 3.362853] [drm] radeon kernel modesetting enabled.
[ 3.386972] fb: switching to radeondrmfb from EFI VGA
[ 3.387717] radeon 0000:00:01.0: CIK support provided by amdgpu.
[ 3.387718] radeon 0000:00:01.0: Use radeon.cik_support=1
amdgpu.cik_support=0 to override.
[ 3.387955] radeon 0000:01:00.0: enabling device (0000 -> 0003)
[ 3.388092] radeon 0000:01:00.0: SI support disabled by module param
Having learning about the RAM, it is a 64bit
dmesg | grep RAM
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] extended physical RAM map:
[ 0.000000] RAMDISK: [mem 0x3d108000-0x3e918fff]
[ 0.296648] e820: reserve RAM buffer [mem 0x4faec018-0x4fffffff]
[ 0.296650] e820: reserve RAM buffer [mem 0x4faf4018-0x4fffffff]
[ 0.296651] e820: reserve RAM buffer [mem 0x6d6ac000-0x6fffffff]
[ 0.296652] e820: reserve RAM buffer [mem 0x6e659000-0x6fffffff]
[ 0.296653] e820: reserve RAM buffer [mem 0x6ec8b000-0x6fffffff]
[ 0.296653] e820: reserve RAM buffer [mem 0x6f000000-0x6fffffff]
[ 0.296654] e820: reserve RAM buffer [mem 0x44f000000-0x44fffffff]
[ 2.958862] systemd[1]: Running in initial RAM disk.
[ 3.548179] amdgpu 0000:00:01.0: VRAM: 1024M 0x000000F400000000 -
0x000000F43FFFFFFF (1024M used)
[ 3.548185] [drm] Detected VRAM RAM=1024M, BAR=1024M
[ 3.548187] [drm] RAM width 128bits UNKNOWN
[ 3.548396] [drm] amdgpu: 1024M of VRAM memory ready
[ 8.303431] amdgpu 0000:01:00.0: VRAM: 2048M 0x000000F400000000 -
0x000000F47FFFFFFF (2048M used)
[ 8.303444] [drm] Detected VRAM RAM=2048M, BAR=256M
[ 8.303445] [drm] RAM width 64bits DDR3
[ 8.303463] [drm] amdgpu: 2048M of VRAM memory ready
[ 26.343910] EDAC amd64: Node 0: DRAM ECC disabled.
[ 26.373034] EDAC amd64: Node 0: DRAM ECC disabled.
[ 26.403924] EDAC amd64: Node 0: DRAM ECC disabled.
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