在linux中如何区分哪块显卡是独立显卡？

1、使用lspci查看显卡PCI设备

root@jiangyu-HP:~# lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Device 3e9b
01:00.0 VGA compatible controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile] (rev a1)

2、再使用lspci命令查看详细的显卡型号，可以查看该设备的制造商、产品代码和其他信息，以确定它是否为独立显卡。

root@jiangyu-HP:~# lspci -v -s 01:00.0
01:00.0 VGA compatible controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile] (rev a1) (prog-if 00 [VGA controller])
    Subsystem: Hewlett-Packard Company GP107M [GeForce GTX 1050 Mobile]
    Flags: bus master, fast devsel, latency 0, IRQ 11
    Memory at b0000000 (32-bit, non-prefetchable) [size=16M]
    Memory at a0000000 (64-bit, prefetchable) [size=256M]
    Memory at b2000000 (64-bit, prefetchable) [size=32M]
    I/O ports at 4000 [disabled] [size=128]
    Expansion ROM at b1080000 [disabled] [size=512K]
    Capabilities: [60] Power Management version 3
    Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
    Capabilities: [78] Express Endpoint, MSI 00
    Capabilities: [100] Virtual Channel
    Capabilities: [250] Latency Tolerance Reporting
    Capabilities: [258] L1 PM Substates
    Capabilities: [128] Power Budgeting <?>
    Capabilities: [420] Advanced Error Reporting
    Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
    Capabilities: [900] #19
    Kernel driver in use: vfio-pci
    Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia

root@jiangyu-HP:~# lspci -v -s 00:02.0
00:02.0 VGA compatible controller: Intel Corporation Device 3e9b (prog-if 00 [VGA controller])
    Subsystem: Hewlett-Packard Company Device 85fa
    Flags: bus master, fast devsel, latency 0, IRQ 145
    Memory at b4000000 (64-bit, non-prefetchable) [size=16M]
    Memory at 80000000 (64-bit, prefetchable) [size=512M]
    I/O ports at 5000 [size=64]
    [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
    Capabilities: [40] Vendor Specific Information: Len=0c <?>
    Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
    Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
    Capabilities: [d0] Power Management version 2
    Capabilities: [100] Process Address Space ID (PASID)
    Capabilities: [200] Address Translation Service (ATS)
    Capabilities: [300] Page Request Interface (PRI)
    Kernel driver in use: i915
    Kernel modules: i915

在上述情况下，01:00.0显卡是独立显卡，因为它是由 NVIDIA Corporation生产的。相反，00:02.0显卡是由Intel Corporation生产的，通常是内置显卡。