LM/PCIe Trouble Shooting
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TODO
sudo dmesg | grep -i -E "pci.*downgraded|pci.*failed|pci.*speed"
sudo nano /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pci=realloc"
sudo update-grub && sudo reboot
List all GPUs
lspci | grep 'VGA'
List PCIe tree for CPU & chipset
sudo lspci -PPvv | grep -E '^0|LnkCap:|LnkSta:'
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge 15:41 [62/9069]
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Internal GPP Bridge to Bus [C:A] (prog-if 00 [Normal decode])
LnkCap: Port #0, Speed 16GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
LnkSta: Speed 16GT/s, Width x16
00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Internal GPP Bridge to Bus [C:A] (prog-if 00 [Normal decode])
LnkCap: Port #0, Speed 16GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
LnkSta: Speed 16GT/s, Width x16
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 71)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 7
00:01.1/01:00.0 PCI bridge: Intel Corporation Device e2ff (rev 01) (prog-if 00 [Normal decode])
LnkCap: Port #0, Speed 16GT/s, Width x16, ASPM L1, Exit Latency L1 <32us
LnkSta: Speed 16GT/s, Width x8 (downgraded)
00:01.1/01:00.0/02:01.0 PCI bridge: Intel Corporation Device e2f0 (prog-if 00 [Normal decode])
LnkCap: Port #8, Speed 2.5GT/s, Width x1, ASPM L1, Exit Latency L1 <1us
LnkSta: Speed 2.5GT/s, Width x1
00:01.1/01:00.0/02:02.0 PCI bridge: Intel Corporation Device e2f1 (prog-if 00 [Normal decode])
LnkCap: Port #8, Speed 2.5GT/s, Width x1, ASPM L1, Exit Latency L1 <1us
LnkSta: Speed 2.5GT/s, Width x1
00:01.1/01:00.0/02:01.0/03:00.0 VGA compatible controller: Intel Corporation Battlemage G31 [Intel Graphics] (prog-if 00 [VGA controller])
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
LnkSta: Speed 2.5GT/s, Width x1
00:01.1/01:00.0/02:02.0/04:00.0 Audio device: Intel Corporation Device e2f7 (prog-if 00 [HDA compatible])
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
LnkSta: Speed 2.5GT/s, Width x1
lspci -tv | sed '/+-03\.0/,$d'
-[0000:00]-+-00.0 Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Root Complex
+-00.2 Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge IOMMU
+-01.0 Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge
+-01.1-[01-04]----00.0-[02-04]--+-01.0-[03]----00.0 Intel Corporation Battlemage G31 [Intel Graphics]
| \-02.0-[04]----00.0 Intel Corporation Device e2f7
+-01.2-[05]----00.0 Kingston Technology Company, Inc. KC2000/KC2500 NVMe SSD [SM2262EN]
+-01.3-[06]--+-00.0 NVIDIA Corporation GA106 [GeForce RTX 3060 Lite Hash Rate]
| \-00.1 NVIDIA Corporation GA106 High Definition Audio Controller
+-02.0 Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge
+-02.1-[07-0e]----00.0-[08-0e]--+-00.0-[09]--
| +-08.0-[0a]----00.0 Realtek Semiconductor Co., Ltd. RTL8126 5GbE Controller
| +-09.0-[0b]----00.0 Intel Corporation Wi-Fi 6E(802.11ax) AX210/AX1675* 2x2 [Typhoon Peak]
| +-0a.0-[0c]----00.0 Realtek Semiconductor Co., Ltd. RTL8126 5GbE Controller
| +-0c.0-[0d]----00.0 Advanced Micro Devices, Inc. [AMD] 800 Series Chipset USB 3.x XHCI Controller
| \-0d.0-[0e]----00.0 Advanced Micro Devices, Inc. [AMD] 600 Series Chipset SATA Controller
Verify link speed & width
sudo lspci -vvv -s 03:00 | grep 'Lnk'
cat /sys/bus/pci/devices/0000:03:00.0/current_link_width
cat /sys/bus/pci/devices/0000:03:00.0/current_link_speed
cat /sys/bus/pci/devices/0000:03:00.0/max_link_width
cat /sys/bus/pci/devices/0000:03:00.0/max_link_speed
Intel only
xpu-smi discovery
Device ID Device Information
0 Device Name: Intel(R) Arc(TM) Pro B70 Graphics
Device State: normal
Vendor Name: Intel(R) Corporation
SOC UUID: 00000000-0000-0003-0000-0000e2238086
PCI BDF Address: 0000:03:00.0
DRM Device: /dev/dri/card0
Function Type: physical
xpu-smi config --device 0
Device Type Device ID/Tile ID Configuration
GPU 0 Power domain card:
sustain(w): N/A
burst(w): 230
peak(w): 460
Power domain package:
sustain(w): N/A
burst(w): N/A
peak(w): N/A
Memory ECC:
Current: disabled
Pending: disabled
PCIe Gen4 Downgrade:
Current: N/A
Fan (Mode / Speed %):
Fan 0: N/A / 0%
GPU 0/0 GPU Min Frequency (MHz): 400
GPU Max Frequency (MHz): 2800
Valid Options: 400, 450, 500, 550, 600, 650, ...
850, 900, 950, 1000, 1050, 1100, 1150, 1200...
1350, 1400, 1450, 1500, 1550, 1600, 1650, 1...
1800, 1850, 1900, 1950, 2000, 2050, 2100, 2...
2250, 2300, 2350, 2400, 2450, 2500, 2550, 2...
2700, 2750, 2800
Standby Mode: N/A
Valid Options: default, never
Scheduler Mode: timeslice
Timeout (us): N/A
Interval (us): 1000
Yield Timeout (us): 640000
$ xpu-smi health --device 0
[Error] Failed to get core temperature: 0x78000003 (ZE_RESULT_ERROR_UNSUPPORTED_FEATURE)
[Error] Health check failed for device id: 0
Component Value
Device ID 0