linux – 显示控制器和VGA兼容控制器有什么区别？

2023年5月25日 352次阅读

以下是我的Arch
linux终端上lscpci命令的输出.我使用的是联想G 50-70笔记本电脑.

[code_master5@BitBox ~]$lspci
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun LE [Radeon HD 8550M / R5 M230]

我想知道为什么我的VGA兼容控制器和显示控制器显示不同的输出？

何时以及为何使用它们？

有没有办法检查哪个应用程序使用哪个图形控制器？

编辑1：
这是@ McGrady答案中第一个命令的输出：

 [code_master5@BitBox node-express]$grep LoadModule /var/log/Xorg.0.log
[    17.105] (II) LoadModule: "glx"
[    17.279] (II) LoadModule: "intel"
[    17.343] (II) LoadModule: "modesetting"
[    17.348] (II) LoadModule: "fbdev"
[    17.349] (II) LoadModule: "vesa"
[    17.374] (II) LoadModule: "dri3"
[    17.374] (II) LoadModule: "dri2"
[    17.374] (II) LoadModule: "present"
[    17.895] (II) LoadModule: "libinput"
[    18.144] (II) LoadModule: "synaptics"

但第二个不起作用……

[code_master5@BitBox node-express]$grep Driver /etc/X11/xorg.conf   
grep: /etc/X11/xorg.conf: No such file or directory

最佳答案 它取决于适配器固件如何向PCI总线声明自己.

原因可能是因为在Optimus双图形系统中.

您可以运行此命令以找出系统当前使用的图形控制器：

grep LoadModule /var/log/Xorg.0.log
grep Driver /etc/X11/xorg.conf
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