☰

编辑：

tag-icon • tag-icon drivers graphics intel radeon hybrid-graphics
编辑：

我想永远使用我的 Radeon GPU。我已关注这些步骤。但似乎对我不起作用。这是执行上述步骤后 lspci 的输出：

$ lspci -nnk | egrep -i --color 'vga|3d|2d' -A3 | grep 'in use'
    Kernel driver in use: i915

我尝试的是：

为了进行配置SWITCHEROO，我GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"在GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.modeset=1"中替换了/etc/default/grub。

然后我运行了以下命令：

$ sudo update-grub
$ sudo su
# sudo echo DIS > /sys/kernel/debug/vgaswitcheroo/switch
# reboot

但重启并检查后lspci，我发现当前正在使用的内核驱动程序仍然i915是我的 Intel HD Graphics！

我确信SWITCHEROO配置正确（基于文档）。

编辑：

我有一台配有混合显卡的笔记本电脑（Asus R540）。它有一个Intel HD Graphics 620和一个Radeon HD 8550M / R5 M230。

以下是完整的输出lspci -k：

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
    Subsystem: ASUSTeK Computer Inc. Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers
    Kernel driver in use: skl_uncore
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
    Subsystem: ASUSTeK Computer Inc. HD Graphics 620
    Kernel driver in use: i915
    Kernel modules: i915
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
    Subsystem: ASUSTeK Computer Inc. Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem
    Kernel driver in use: proc_thermal
    Kernel modules: processor_thermal_device
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-LP USB 3.0 xHCI Controller
    Kernel driver in use: xhci_hcd
    Kernel modules: xhci_pci
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-LP Thermal subsystem
    Kernel driver in use: intel_pch_thermal
    Kernel modules: intel_pch_thermal
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-LP Serial IO I2C Controller
    Kernel driver in use: intel-lpss
    Kernel modules: intel_lpss_pci
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-LP Serial IO I2C Controller
    Kernel driver in use: intel-lpss
    Kernel modules: intel_lpss_pci
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-LP SATA Controller [AHCI mode]
    Kernel driver in use: ahci
    Kernel modules: ahci
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
    Kernel driver in use: pcieport
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
    Kernel driver in use: pcieport
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
    Kernel driver in use: pcieport
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-LP LPC Controller
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-LP PMC
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-LP HD Audio
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd_hda_intel, snd_soc_skl
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-LP SMBus
    Kernel driver in use: i801_smbus
    Kernel modules: i2c_i801
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun LE [Radeon HD 8550M / R5 M230]
    Subsystem: ASUSTeK Computer Inc. Sun LE [Radeon HD 8550M / R5 M230]
    Kernel modules: radeon, amdgpu
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5286 PCI Express Card Reader (rev 01)
    Subsystem: Realtek Semiconductor Co., Ltd. RTS5286 PCI Express Card Reader
    Kernel driver in use: rtsx_pci
    Kernel modules: rtsx_pci
02:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 06)
    Subsystem: ASUSTeK Computer Inc. RTL810xE PCI Express Fast Ethernet controller
    Kernel driver in use: r8169
    Kernel modules: r8169
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
    Subsystem: Lite-On Communications Inc RTL8723BE PCIe Wireless Network Adapter
    Kernel driver in use: rtl8723be
    Kernel modules: rtl8723be

相关内容