☰

如果我玩游戏，会使用哪个 VGA？（AMD 混合笔记本电脑）

tag-icon • tag-icon 19.10 radeon intel hybrid-graphics
如果我玩游戏，会使用哪个 VGA？（AMD 混合笔记本电脑）

我有一台配备英特尔和 AMD 混合显卡的笔记本电脑。实际上我使用的是 Ubuntu 19.10，但从问题的角度来看，它无关紧要。问题是： 当我玩游戏时，如何确定我的笔记本电脑是使用专用卡还是集成英特尔？只要我没有任何控制面板来选择图形卡，我就不明白我如何能确定这一点。

回答之前请记住，此卡不支持 amdgpu，因此它使用 radeon 驱动程序。提前非常感谢您提供正确的答案！

信息：

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Grap
hics Controller (rev 09) (prog-if 00 [VGA controller])
        Subsystem: Dell Haswell-ULT Integrated Graphics Controller
        Flags: bus master, fast devsel, latency 0, IRQ 47
        Memory at c0000000 (64-bit, non-prefetchable) [size=4M]
        Memory at b0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 5000 [size=64]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [d0] Power Management version 2
        Capabilities: [a4] PCI Advanced Features
        Kernel driver in use: i915
        Kernel modules: i915

03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Venus PRO [Radeon HD 8850M / R9 M265X] (prog-if 00 [VGA controller])
        Subsystem: Dell Venus PRO [Radeon HD 8850M / R9 M265X]
        Flags: bus master, fast devsel, latency 0, IRQ 49
        Memory at a0000000 (64-bit, prefetchable) [size=256M]
        Memory at c0500000 (64-bit, non-prefetchable) [size=256K]
        I/O ports at 3000 [size=256]
        Expansion ROM at c0540000 [disabled] [size=128K]
        Capabilities: [48] Vendor Specific Information: Len=08 <?>
        Capabilities: [50] Power Management version 3
        Capabilities: [58] Express Legacy Endpoint, MSI 00
        Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
        Capabilities: [150] Advanced Error Reporting
        Capabilities: [270] Secondary PCI Express <?>
        Kernel driver in use: radeon
        Kernel modules: radeon, amdgpu

信息2：

 *-display                 
       description: VGA compatible controller
       product: Haswell-ULT Integrated Graphics Controller [8086:A16]
       vendor: Intel Corporation [8086]
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:47 memory:c0000000-c03fffff memory:b0000000-bfffffff ioport:5000(size=64) memory:c0000-dffff
  *-display
       description: VGA compatible controller
       product: Venus PRO [Radeon HD 8850M / R9 M265X] [1002:6823]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI] [1002]
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:49 memory:a0000000-afffffff memory:c0500000-c053ffff ioport:3000(size=256) memory:c0540000-c055ffff

答案1

在具有 Intel/AMD 混合处理器的现代系统上，通常默认使用 Intel，如果您想在 AMD GPU 上运行某些东西，请DRI_PRIME=1为该进程设置环境变量。例如，如果您知道如何从命令行启动相关进程，您只需在命令前添加变量即可：

$ DRI_PRIME=1 glxinfo | grep Device
Device: AMD ...

相反

$ glxinfo | grep Device
Device: Mesa DRI Intel...

如果您尝试运行 Steam 游戏，请在游戏的启动选项设置中尝试以下行：

DRI_PRIME=1 %command%

相关内容