libglvndを使ってGPUを切り替えるには？

私は「Optimus」タイプの設定でIntelグラフィックが統合され、別々のnVidia GPUを搭載したノートパソコンを購入しました。統合グラフィックスは一般的に良いですが、ノートブックのHDMIポートとDisplayPortポートはnVidiaチップにのみ物理的に接続されています。

いくつかの実験の後、PRIMEはアプリケーションごとに動作し、内蔵モニターに出力されるようにしました。libglvndはマルチGPUレンダリングの未来なので、GentooシステムをXorg 1.20.8、Linux 5.7.8、nvidia-drivers 440.82-r3にアップデートし、libglvndのサポートを有効にしました.

明示的な規定はなく、xorg.conf自動検出と構成の実行を許可します。

xrandr --listprovidersxrandr両方のカードが検出され、登録済みとしてマークされますが（1.5.1）を使用して選択できる「受信者」またはその他の項目は表示されません。

Providers: number : 2
Provider 0: id: 0x45 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 4 outputs: 2 associated providers: 0 name:Intel
Provider 1: id: 0x220 cap: 0x0 crtcs: 0 outputs: 0 associated providers: 0 name:NVIDIA-G0

そしてxrandr -qインテル出力のみが表示されます。

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 340mm x 190mm
   1920x1080    120.11*+  48.08  
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Xorgログ（下のフルブートログ）は、ケーブルを接続または切断したときにnVidiaドライバがグラフィックポートでホットプラグイベントを報告していることを示しています。

[272668.092] (--) NVIDIA(GPU-0): WIT DISPLAY PORT (DFP-1): connected
[272668.093] (--) NVIDIA(GPU-0): WIT DISPLAY PORT (DFP-1): Internal DisplayPort
[272668.093] (--) NVIDIA(GPU-0): WIT DISPLAY PORT (DFP-1): 2660.0 MHz maximum pixel clock
[272668.093] (--) NVIDIA(GPU-0):
[272670.384] (--) NVIDIA(GPU-0): HYO HDMI (DFP-0): connected
[272670.384] (--) NVIDIA(GPU-0): HYO HDMI (DFP-0): Internal TMDS
[272670.384] (--) NVIDIA(GPU-0): HYO HDMI (DFP-0): 600.0 MHz maximum pixel clock

私が理解したのは、コアlibglvnd設定が正しく機能しているようですが、出力ポートを使用できるようにnVidia GPUに切り替える方法を知りません。初期のPRIMEモデルを実験するとき、DRI_PRIMEまたはなどの環境変数を使用する必要がありましたが、libglvndバイナリで有望なものが見つからず、libglvndパッケージ__GL*には。stringsoptirun

複数のGPU設定が検出され、ホットプラグイベントが正しく報告されたら、外部ディスプレイポートを使用できるようにlibglvndを使用してdGPUを有効にするにはどうすればよいですか。

Xorgは、制限を満たすために入力デバイスが取り外された状態で開始されます。

[    25.679] (--) Log file renamed from "/var/log/Xorg.pid-5923.log" to "/var/log/Xorg.0.log"
[    25.680] 
X.Org X Server 1.20.8
X Protocol Version 11, Revision 0
[    25.680] Build Operating System: Linux 5.5.3-gentoo-x86_64 x86_64 Gentoo
[    25.680] Current Operating System: Linux codex 5.7.2-gentoo-x86_64 #3 SMP PREEMPT Thu Jun 18 16:11:45 CDT 2020 x86_64
[    25.680] Kernel command line: BOOT_IMAGE=/vmlinuz-5.7.2-gentoo-x86_64 root=/dev/mapper/codex-root ro dolvm crypt_root=PARTUUID=4171a9c1-510e-40f1-a4cc-01162e222522 root=/dev/codex/root resume=/dev/codex/swap root_trim=yes
[    25.680] Build Date: 16 June 2020  07:48:52PM
[    25.680]  
[    25.680] Current version of pixman: 0.38.4
[    25.680]    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
[    25.680] Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    25.680] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Jun 18 16:14:54 2020
[    25.681] (==) Using config directory: "/etc/X11/xorg.conf.d"
[    25.681] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    25.682] (==) ServerLayout "layout"
[    25.682] (==) No screen section available. Using defaults.
[    25.682] (**) |-->Screen "Default Screen Section" (0)
[    25.682] (**) |   |-->Monitor "<default monitor>"
[    25.683] (==) No monitor specified for screen "Default Screen Section".
    Using a default monitor configuration.
[    25.683] (==) Automatically adding devices
[    25.683] (==) Automatically enabling devices
[    25.683] (==) Automatically adding GPU devices
[    25.683] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    25.684] (WW) The directory "/usr/share/fonts/TTF/" does not exist.
[    25.684]    Entry deleted from font path.
[    25.684] (WW) The directory "/usr/share/fonts/OTF/" does not exist.
[    25.684]    Entry deleted from font path.
[    25.684] (WW) The directory "/usr/share/fonts/Type1/" does not exist.
[    25.684]    Entry deleted from font path.
[    25.684] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi/".
[    25.684]    Entry deleted from font path.
[    25.684]    (Run 'mkfontdir' on "/usr/share/fonts/100dpi/").
[    25.684] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi/".
[    25.684]    Entry deleted from font path.
[    25.684]    (Run 'mkfontdir' on "/usr/share/fonts/75dpi/").
[    25.684] (==) FontPath set to:
    /usr/share/fonts/misc/
[    25.684] (**) ModulePath set to "/usr/lib64/xorg/modules"
[    25.684] (II) The server relies on udev to provide the list of input devices.
    If no devices become available, reconfigure udev or disable AutoAddDevices.
[    25.684] (II) Loader magic: 0x561eb766cd20
[    25.684] (II) Module ABI versions:
[    25.684]    X.Org ANSI C Emulation: 0.4
[    25.684]    X.Org Video Driver: 24.1
[    25.684]    X.Org XInput driver : 24.1
[    25.684]    X.Org Server Extension : 10.0
[    25.685] (++) using VT number 7

[    25.685] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[    25.685] (II) xfree86: Adding drm device (/dev/dri/card1)
[    25.685] (II) xfree86: Adding drm device (/dev/dri/card0)
[    25.691] (--) PCI:*(0@0:2:0) 8086:3e9b:1462:129b rev 2, Mem @ 0xa3000000/16777216, 0x80000000/268435456, I/O @ 0x00005000/64, BIOS @ 0x????????/131072
[    25.691] (--) PCI: (1@0:0:0) 10de:2191:1462:129b rev 161, Mem @ 0xa4000000/16777216, 0x90000000/268435456, 0xa0000000/33554432, I/O @ 0x00004000/128, BIOS @ 0x????????/524288
[    25.691] (II) LoadModule: "glx"
[    25.691] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so
[    25.699] (II) Module glx: vendor="X.Org Foundation"
[    25.699]    compiled for 1.20.8, module version = 1.0.0
[    25.699]    ABI class: X.Org Server Extension, version 10.0
[    25.699] (II) Applying OutputClass "nvidia" to /dev/dri/card1
[    25.699]    loading driver: nvidia
[    25.699] (==) Matched intel as autoconfigured driver 0
[    25.699] (==) Matched nvidia as autoconfigured driver 1
[    25.699] (==) Matched nouveau as autoconfigured driver 2
[    25.699] (==) Matched nv as autoconfigured driver 3
[    25.699] (==) Matched modesetting as autoconfigured driver 4
[    25.699] (==) Matched fbdev as autoconfigured driver 5
[    25.699] (==) Matched vesa as autoconfigured driver 6
[    25.699] (==) Assigned the driver to the xf86ConfigLayout
[    25.699] (II) LoadModule: "intel"
[    25.700] (II) Loading /usr/lib64/xorg/modules/drivers/intel_drv.so
[    25.701] (II) Module intel: vendor="X.Org Foundation"
[    25.701]    compiled for 1.20.8, module version = 2.99.917
[    25.701]    Module class: X.Org Video Driver
[    25.701]    ABI class: X.Org Video Driver, version 24.1
[    25.701] (II) LoadModule: "nvidia"
[    25.701] (II) Loading /usr/lib64/xorg/modules/drivers/nvidia_drv.so
[    25.705] (II) Module nvidia: vendor="NVIDIA Corporation"
[    25.705]    compiled for 1.6.99.901, module version = 1.0.0
[    25.705]    Module class: X.Org Video Driver
[    25.706] (II) LoadModule: "nouveau"
[    25.706] (WW) Warning, couldn't open module nouveau
[    25.706] (EE) Failed to load module "nouveau" (module does not exist, 0)
[    25.706] (II) LoadModule: "nv"
[    25.706] (WW) Warning, couldn't open module nv
[    25.706] (EE) Failed to load module "nv" (module does not exist, 0)
[    25.706] (II) LoadModule: "modesetting"
[    25.706] (II) Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
[    25.707] (II) Module modesetting: vendor="X.Org Foundation"
[    25.707]    compiled for 1.20.8, module version = 1.20.8
[    25.707]    Module class: X.Org Video Driver
[    25.707]    ABI class: X.Org Video Driver, version 24.1
[    25.707] (II) LoadModule: "fbdev"
[    25.707] (WW) Warning, couldn't open module fbdev
[    25.707] (EE) Failed to load module "fbdev" (module does not exist, 0)
[    25.707] (II) LoadModule: "vesa"
[    25.707] (WW) Warning, couldn't open module vesa
[    25.707] (EE) Failed to load module "vesa" (module does not exist, 0)
[    25.707] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
    i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
    915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
    Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
    GM45, 4 Series, G45/G43, Q45/Q43, G41, B43
[    25.707] (II) intel: Driver for Intel(R) HD Graphics
[    25.707] (II) intel: Driver for Intel(R) Iris(TM) Graphics
[    25.707] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics
[    25.707] (II) NVIDIA dlloader X Driver  440.82  Wed Apr  1 19:50:17 UTC 2020
[    25.707] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[    25.707] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    25.716] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20200313
[    25.729] (WW) Falling back to old probe method for modesetting
[    25.729] (II) Loading sub module "fb"
[    25.729] (II) LoadModule: "fb"
[    25.730] (II) Loading /usr/lib64/xorg/modules/libfb.so
[    25.730] (II) Module fb: vendor="X.Org Foundation"
[    25.730]    compiled for 1.20.8, module version = 1.0.0
[    25.730]    ABI class: X.Org ANSI C Emulation, version 0.4
[    25.730] (II) Loading sub module "wfb"
[    25.730] (II) LoadModule: "wfb"
[    25.730] (II) Loading /usr/lib64/xorg/modules/libwfb.so
[    25.731] (II) Module wfb: vendor="X.Org Foundation"
[    25.731]    compiled for 1.20.8, module version = 1.0.0
[    25.731]    ABI class: X.Org ANSI C Emulation, version 0.4
[    25.731] (II) Loading sub module "ramdac"
[    25.731] (II) LoadModule: "ramdac"
[    25.731] (II) Module "ramdac" already built-in
[    25.733] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics
[    25.733] (--) intel(0): CPU: x86-64, sse2, sse3, ssse3, sse4.1, sse4.2, avx, avx2; using a maximum of 6 threads
[    25.733] (II) intel(0): Creating default Display subsection in Screen section
    "Default Screen Section" for depth/fbbpp 24/32
[    25.733] (==) intel(0): Depth 24, (--) framebuffer bpp 32
[    25.733] (==) intel(0): RGB weight 888
[    25.733] (==) intel(0): Default visual is TrueColor
[    25.733] (II) intel(0): Output eDP1 has no monitor section
[    25.733] (**) intel(0): Found backlight control interface intel_backlight (type 'raw') for output eDP1
[    25.733] (II) intel(0): Enabled output eDP1
[    25.733] (--) intel(0): Using a maximum size of 256x256 for hardware cursors
[    25.733] (II) intel(0): Output VIRTUAL1 has no monitor section
[    25.733] (II) intel(0): Enabled output VIRTUAL1
[    25.733] (--) intel(0): Output eDP1 using initial mode 1920x1080 on pipe 0
[    25.733] (==) intel(0): TearFree enabled
[    25.733] (==) intel(0): Using gamma correction (1.0, 1.0, 1.0)
[    25.733] (==) intel(0): DPI set to (96, 96)
[    25.733] (II) Loading sub module "dri3"
[    25.733] (II) LoadModule: "dri3"
[    25.733] (II) Module "dri3" already built-in
[    25.733] (II) Loading sub module "dri2"
[    25.733] (II) LoadModule: "dri2"
[    25.733] (II) Module "dri2" already built-in
[    25.733] (II) Loading sub module "present"
[    25.733] (II) LoadModule: "present"
[    25.733] (II) Module "present" already built-in
[    25.733] (==) NVIDIA(G0): Depth 24, (==) framebuffer bpp 32
[    25.733] (==) NVIDIA(G0): RGB weight 888
[    25.733] (==) NVIDIA(G0): Default visual is TrueColor
[    25.733] (==) NVIDIA(G0): Using gamma correction (1.0, 1.0, 1.0)
[    25.734] (**) Option "AllowNVIDIAGpuScreens"
[    25.734] (**) NVIDIA(G0): Enabling 2D acceleration
[    25.734] (II) Loading sub module "glxserver_nvidia"
[    25.734] (II) LoadModule: "glxserver_nvidia"
[    25.734] (II) Loading /usr/lib64/xorg/modules/extensions/libglxserver_nvidia.so
[    25.768] (II) Module glxserver_nvidia: vendor="NVIDIA Corporation"
[    25.768]    compiled for 1.6.99.901, module version = 1.0.0
[    25.768]    Module class: X.Org Server Extension
[    25.768] (II) NVIDIA GLX Module  440.82  Wed Apr  1 19:47:36 UTC 2020
[    25.770] (II) NVIDIA: The X server supports PRIME Render Offload.
[    26.259] (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:1:0:0
[    26.259] (--) NVIDIA(0):     DFP-0
[    26.259] (--) NVIDIA(0):     DFP-1 (boot)
[    26.259] (--) NVIDIA(0):     DFP-2
[    26.259] (II) NVIDIA(G0): NVIDIA GPU GeForce GTX 1660 Ti (TU116-A) at PCI:1:0:0 (GPU-0)
[    26.260] (--) NVIDIA(G0): Memory: 6291456 kBytes
[    26.260] (--) NVIDIA(G0): VideoBIOS: 90.16.2c.00.0d
[    26.260] (II) NVIDIA(G0): Detected PCI Express Link width: 16X
[    26.260] (--) NVIDIA(GPU-0): DFP-0: disconnected
[    26.260] (--) NVIDIA(GPU-0): DFP-0: Internal TMDS
[    26.260] (--) NVIDIA(GPU-0): DFP-0: 165.0 MHz maximum pixel clock
[    26.260] (--) NVIDIA(GPU-0): 
[    26.260] (--) NVIDIA(GPU-0): WIT DISPLAY PORT (DFP-1): connected
[    26.260] (--) NVIDIA(GPU-0): WIT DISPLAY PORT (DFP-1): Internal DisplayPort
[    26.260] (--) NVIDIA(GPU-0): WIT DISPLAY PORT (DFP-1): 2660.0 MHz maximum pixel clock
[    26.260] (--) NVIDIA(GPU-0): 
[    26.261] (--) NVIDIA(GPU-0): DFP-2: disconnected
[    26.261] (--) NVIDIA(GPU-0): DFP-2: Internal TMDS
[    26.261] (--) NVIDIA(GPU-0): DFP-2: 165.0 MHz maximum pixel clock
[    26.261] (--) NVIDIA(GPU-0): 
[    26.261] (II) NVIDIA(G0): Validated MetaModes:
[    26.261] (II) NVIDIA(G0):     "NULL"
[    26.261] (**) NVIDIA(G0): Virtual screen size configured to be 1920 x 1080
[    26.261] (WW) NVIDIA(G0): Unable to get display device for DPI computation.
[    26.261] (==) NVIDIA(G0): DPI set to (75, 75); computed from built-in default
[    26.261] (II) UnloadModule: "modesetting"
[    26.261] (II) Unloading modesetting
[    26.266] (II) intel(0): SNA initialized with Coffeelake (gen9) backend
[    26.266] (==) intel(0): Backing store enabled
[    26.266] (==) intel(0): Silken mouse enabled
[    26.266] (II) intel(0): HW Cursor enabled
[    26.267] (==) intel(0): DPMS enabled
[    26.267] (==) intel(0): Display hotplug detection enabled
[    26.267] (II) intel(0): [DRI2] Setup complete
[    26.267] (II) intel(0): [DRI2]   DRI driver: i965
[    26.267] (II) intel(0): [DRI2]   VDPAU driver: va_gl
[    26.267] (II) intel(0): direct rendering: DRI2 DRI3 enabled
[    26.267] (II) intel(0): hardware support for Present enabled
[    26.267] (II) NVIDIA: Using 24576.00 MB of virtual memory for indirect memory
[    26.267] (II) NVIDIA:     access.
[    26.276] (II) NVIDIA(G0): ACPI: failed to connect to the ACPI event daemon; the daemon
[    26.276] (II) NVIDIA(G0):     may not be running or the "AcpidSocketPath" X
[    26.276] (II) NVIDIA(G0):     configuration option may not be set correctly.  When the
[    26.276] (II) NVIDIA(G0):     ACPI event daemon is available, the NVIDIA X driver will
[    26.276] (II) NVIDIA(G0):     try to use it to receive ACPI event notifications.  For
[    26.276] (II) NVIDIA(G0):     details, please see the "ConnectToAcpid" and
[    26.276] (II) NVIDIA(G0):     "AcpidSocketPath" X configuration options in Appendix B: X
[    26.276] (II) NVIDIA(G0):     Config Options in the README.
[    26.329] (II) NVIDIA(G0): Setting mode "NULL"
[    26.359] (==) NVIDIA(G0): Disabling shared memory pixmaps
[    26.359] (==) NVIDIA(G0): Backing store enabled
[    26.359] (==) NVIDIA(G0): Silken mouse enabled
[    26.359] (==) NVIDIA(G0): DPMS enabled
[    26.359] (II) Loading sub module "dri2"
[    26.359] (II) LoadModule: "dri2"
[    26.359] (II) Module "dri2" already built-in
[    26.359] (II) NVIDIA(G0): [DRI2] Setup complete
[    26.359] (II) NVIDIA(G0): [DRI2]   VDPAU driver: nvidia
[    26.359] (II) Initializing extension Generic Event Extension
[    26.360] (II) Initializing extension SHAPE
[    26.360] (II) Initializing extension MIT-SHM
[    26.360] (II) Initializing extension XInputExtension
[    26.360] (II) Initializing extension XTEST
[    26.360] (II) Initializing extension BIG-REQUESTS
[    26.360] (II) Initializing extension SYNC
[    26.360] (II) Initializing extension XKEYBOARD
[    26.360] (II) Initializing extension XC-MISC
[    26.360] (II) Initializing extension SECURITY
[    26.360] (II) Initializing extension XFIXES
[    26.361] (II) Initializing extension RENDER
[    26.361] (II) Initializing extension RANDR
[    26.361] (II) Initializing extension COMPOSITE
[    26.361] (II) Initializing extension DAMAGE
[    26.361] (II) Initializing extension MIT-SCREEN-SAVER
[    26.361] (II) Initializing extension DOUBLE-BUFFER
[    26.361] (II) Initializing extension RECORD
[    26.361] (II) Initializing extension DPMS
[    26.361] (II) Initializing extension Present
[    26.361] (II) Initializing extension DRI3
[    26.361] (II) Initializing extension X-Resource
[    26.361] (II) Initializing extension XVideo
[    26.361] (II) Initializing extension XVideo-MotionCompensation
[    26.361] (II) Initializing extension GLX
[    26.361] (II) Initializing extension GLX
[    26.361] (II) Indirect GLX disabled.
[    26.383] (II) AIGLX: Loaded and initialized i965
[    26.383] (II) GLX: Initialized DRI2 GL provider for screen 0
[    26.383] (II) Initializing extension XFree86-VidModeExtension
[    26.384] (II) Initializing extension XFree86-DGA
[    26.384] (II) Initializing extension XFree86-DRI
[    26.384] (II) Initializing extension DRI2
[    26.384] (II) Initializing extension NV-GLX
[    26.384] (II) Initializing extension NV-CONTROL
[    26.386] (II) intel(0): switch to mode [email protected] on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[    26.388] (II) intel(0): Setting screen physical size to 508 x 285
[    26.988] (--) NVIDIA(GPU-0): WIT DISPLAY PORT (DFP-1): connected
[    26.988] (--) NVIDIA(GPU-0): WIT DISPLAY PORT (DFP-1): Internal DisplayPort
[    26.988] (--) NVIDIA(GPU-0): WIT DISPLAY PORT (DFP-1): 2660.0 MHz maximum pixel clock
[    26.988] (--) NVIDIA(GPU-0): 
[    26.988] (EE) Failed to open authorization file "/var/run/sddm/{248a5522-1b5e-4998-9e20-ae4671e50102}": No such file or directory
[    28.268] (II) intel(0): EDID vendor "AUO", prod id 53485
[    28.269] (II) intel(0): Using EDID range info for horizontal sync
[    28.269] (II) intel(0): Using EDID range info for vertical refresh
[    28.269] (II) intel(0): Printing DDC gathered Modelines:
[    28.269] (II) intel(0): Modeline "1920x1080"x0.0  290.80  1920 2028 2076 2120  1080 1090 1100 1142 -hsync -vsync (137.2 kHz eP)
[    28.269] (II) intel(0): Modeline "1920x1080"x0.0  116.40  1920 2028 2076 2120  1080 1090 1100 1142 -hsync -vsync (54.9 kHz e)