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切换到 AMD 独立显卡时出现黑屏

tag-icon • tag-icon 16.04 drivers graphics radeon amd-graphics
切换到 AMD 独立显卡时出现黑屏

我在一台 HP Pavilion 15 n004TX 上运行 Ubuntu 16.04 和 Windows 7 双启动系统，该电脑配有混合显卡，专用的 AMD 显卡是 Radeon HD 8600M 系列芯片。我遵循这指南尝试切换到集成 AMD 显卡。更准确地说，我做了以下事情：

  • 添加modprobe radeon.modeset=1到GRUB_CMDLINE_LINUX_DEFAULT字段。
  • 跑步sudo update-grub。
  • 重新启动笔记本电脑。
  • 运行sudo bash以以 root 身份使用 bash。
  • 以 root 身份执行echo DDIS > /sys/kernel/debug/vgaswitcheroo/switch
  • 退出后重新登录。

当我退出时，屏幕立即变黑，并一直保持黑色。

我认为一些日志和内容可能会提供一些见解：

  • dmesg | grep vga：

    [    0.353271] vgaarb: setting as boot device: PCI:0000:00:02.0
[   0.353274] vgaarb: device added:  PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[    0.353278] vgaarb: loaded
[    0.353280] vgaarb: bridge control possible 0000:00:02.0
[    1.404921] vga_switcheroo: detected switching method \_SB_.PCI0.GFX0.ATPX handle
[    1.407099] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    1.443796] vga_switcheroo: enabled

  • dmesg | grep radeon

    [    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-83-generic root=UUID=36fda289-737c-4df7-a5d3-31cdb1af29fe ro quiet splash modprobe radeon.modeset=1 vt.handoff=7
[    0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-83-generic root=UUID=36fda289-737c-4df7-a5d3-31cdb1af29fe ro quiet splash modprobe radeon.modeset=1 vt.handoff=7
[    1.404905] [drm] radeon kernel modesetting enabled.
[    1.413192] radeon 0000:0a:00.0: enabling device (0006 -> 0007)
[    1.448380] radeon 0000:0a:00.0: VRAM: 1024M 0x0000000000000000 - 0x000000003FFFFFFF (1024M used)
[    1.448382] radeon 0000:0a:00.0: GTT: 2048M 0x0000000040000000 - 0x00000000BFFFFFFF
[    1.448503] [drm] radeon: 1024M of VRAM memory ready
[    1.448504] [drm] radeon: 2048M of GTT memory ready.
[    1.456350] [drm] radeon: dpm initialized
[    1.460830] radeon 0000:0a:00.0: WB enabled
[    1.460832] radeon 0000:0a:00.0: fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr 0xffff8800349b0c00
[    1.460834] radeon 0000:0a:00.0: fence driver on ring 1 use gpu addr 0x0000000040000c04 and cpu addr 0xffff8800349b0c04
[    1.460835] radeon 0000:0a:00.0: fence driver on ring 2 use gpu addr 0x0000000040000c08 and cpu addr 0xffff8800349b0c08
[    1.460837] radeon 0000:0a:00.0: fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr 0xffff8800349b0c0c
[    1.460838] radeon 0000:0a:00.0: fence driver on ring 4 use gpu addr 0x0000000040000c10 and cpu addr 0xffff8800349b0c10
[    1.460839] radeon 0000:0a:00.0: VCE init error (-22).
[    1.460843] radeon 0000:0a:00.0: radeon: MSI limited to 32-bit
[    1.460883] radeon 0000:0a:00.0: radeon: using MSI.
[    1.460913] [drm] radeon: irq initialized.
[    1.699412] [drm] Initialized radeon 2.43.0 20080528 for 0000:0a:00.0 on minor 1
[   13.343929] radeon 0000:0a:00.0: WB enabled
[   13.343933] radeon 0000:0a:00.0: fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr 0xffff8800349b0c00
[   13.343934] radeon 0000:0a:00.0: fence driver on ring 1 use gpu addr 0x0000000040000c04 and cpu addr 0xffff8800349b0c04
[   13.343936] radeon 0000:0a:00.0: fence driver on ring 2 use gpu addr 0x0000000040000c08 and cpu addr 0xffff8800349b0c08
[   13.343937] radeon 0000:0a:00.0: fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr 0xffff8800349b0c0c
[   13.343939] radeon 0000:0a:00.0: fence driver on ring 4 use gpu addr 0x0000000040000c10 and cpu addr 0xffff8800349b0c10
[   13.343941] radeon 0000:0a:00.0: VCE init error (-22).
[   37.170761] radeon 0000:0a:00.0: WB enabled
[   37.170766] radeon 0000:0a:00.0: fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr 0xffff8800349b0c00
[   37.170769] radeon 0000:0a:00.0: fence driver on ring 1 use gpu addr 0x0000000040000c04 and cpu addr 0xffff8800349b0c04
[   37.170771] radeon 0000:0a:00.0: fence driver on ring 2 use gpu addr 0x0000000040000c08 and cpu addr 0xffff8800349b0c08
[   37.170774] radeon 0000:0a:00.0: fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr 0xffff8800349b0c0c
[   37.170776] radeon 0000:0a:00.0: fence driver on ring 4 use gpu addr 0x0000000040000c10 and cpu addr 0xffff8800349b0c10
[   37.170779] radeon 0000:0a:00.0: VCE init error (-22).

  • lspci | grep Display

    0a:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430] (rev ff)

  • lspci | grep VGA

    0a:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430] (rev ff)

  • glxinfo | grep OpenGL

    OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile 
OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.2.0
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 11.2.0
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.2.0
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

我很乐意提供任何必要的进一步信息。提前感谢您的帮助。

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