我有一个 AMD GPU S7150，并为来宾操作系统 CentOS7.6 虚拟机创建直通 VGA。来宾操作系统上“lspci | grep AMD”的输出如下，00:09.0 VGA 兼容控制器：Advanced Micro Devices, Inc. [AMD/ATI] Tonga XT GL [FirePro S7150]。
“/etc/X11/xorg.conf.d/xorg.conf”的内容如下，
Section "Device"
Identifier "Card0"
Driver "amdgpu"
BusID "PCI:00:09:0"
EndSection
Section "Server Flags"
Option "IgnoreABI"
EndSection
当我在来宾操作系统上运行“startx”命令时，我收到一条错误消息：已找到屏幕，但没有一个具有可用的配置。致命服务器错误：找不到屏幕 在文件 /var/log/Xorg.0.log 中，
X.Org X Server 1.20.4
X Protocol Version 11, Revision 0
[ 228.461] Build Operating System: 3.10.0-957.1.3.el7.x86_64
[ 228.461] Current Operating System: Linux centos_client 3.10.0-1062.9.1.el7.x86_64 #1 SMP Fri Dec 6 15:49:49 UTC 2019 x86_64
[ 228.461] Kernel command line: BOOT_IMAGE=/vmlinuz-3.10.0-1062.9.1.el7.x86_64 root=/dev/mapper/cl-root ro crashkernel=auto rd.lvm.lv=cl/root rd.lvm.lv=cl/swap rhgb quiet LANG=en_US.UTF-8
[ 228.461] Build Date: 09 August 2019 03:27:09AM
[ 228.461] Build ID: xorg-x11-server 1.20.4-7.el7
[ 228.461] Current version of pixman: 0.34.0
[ 228.461] Before reporting problems, check http://wiki.x.org to make sure that you have the latest version.
[ 228.461] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 228.462] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Jan 9 12:34:32 2020
[ 228.462] (==) Using config directory: "/etc/X11/xorg.conf.d"
[ 228.462] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 228.463] (==) No Layout section. Using the first Screen section.
[ 228.463] (==) No screen section available. Using defaults.
[ 228.463] (**) |-->Screen "Default Screen Section" (0)
[ 228.463] (**) | |-->Monitor "<default monitor>"
[ 228.463] (==) No device specified for screen "Default Screen Section". Using the first device section listed.
[ 228.463] (**) | |-->Device "Card0"
[ 228.463] (==) No monitor specified for screen "Default Screen Section". Using a default monitor configuration.
[ 228.463] (**) Option "IgnoreABI"
[ 228.463] (**) Ignoring ABI Version
[ 228.463] (==) Automatically adding devices
[ 228.463] (==) Automatically enabling devices
[ 228.463] (==) Automatically adding GPU devices
[ 228.463] (==) Automatically binding GPU devices
[ 228.463] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 228.463] (==) FontPath set to: catalogue:/etc/X11/fontpath.d, built-ins
[ 228.463] (**) ModulePath set to "/opt/amdgpu-pro/lib64/xorg/modules,/opt/amdgpu/lib64/xorg/modules,/usr/lib64/xorg/modules"
[ 228.463] (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 228.463] (II) Loader magic: 0x5653e35a2020
[ 228.463] (II) Module ABI versions:
[ 228.463] X.Org ANSI C Emulation: 0.4
[ 228.463] X.Org Video Driver: 24.0
[ 228.463] X.Org XInput driver : 24.1
[ 228.463] X.Org Server Extension : 10.0
[ 228.464] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 228.464] (II) xfree86: Adding drm device (/dev/dri/card1)
[ 228.479] (--) PCI:*(0@0:2:0) 1b36:0100:1af4:1100 rev 4, Mem @ 0xf4000000/67108864, 0xf8000000/67108864, 0xfc0b4000/8192, I/O @ 0x0000c240/32, BIOS @ 0x????????/65536
[ 228.479] (--) PCI: (0@0:9:0) 1002:6929:1002:030c rev 0, Mem @ 0xe0000000/268435456, 0xf0000000/2097152, 0xfc040000/262144, I/O @ 0x0000c100/256, BIOS @ 0x????????/131072
[ 228.479] (II) LoadModule: "glx"
[ 228.480] (II) Loading /opt/amdgpu-pro/lib64/xorg/modules/extensions/libglx.so
[ 228.482] (II) Module glx: vendor="X.Org Foundation"
[ 228.482] compiled for 1.20.1, module version = 1.0.0
[ 228.482] ABI class: X.Org Server Extension, version 10.0
[ 228.482] (II) LoadModule: "amdgpu"
[ 228.482] (II) Loading /opt/amdgpu/lib64/xorg/modules/drivers/amdgpu_drv.so
[ 228.482] (II) Module amdgpu: vendor="X.Org Foundation"
[ 228.482] compiled for 1.20.1, module version = 19.0.1
[ 228.482] Module class: X.Org Video Driver
[ 228.482] ABI class: X.Org Video Driver, version 24.0
[ 228.482] (II) AMDGPU: Driver for AMD Radeon: All GPUs supported by the amdgpu kernel driver
[ 228.482] (--) using VT number 2
[ 228.486] (II) AMDGPU(0): [KMS] Kernel modesetting enabled.
[ 228.487] (II) AMDGPU(0): Creating default Display subsection in Screen section "Default Screen Section" for depth/fbbpp 24/32
[ 228.487] (==) AMDGPU(0): Depth 24, (--) framebuffer bpp 32
[ 228.487] (II) AMDGPU(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp pixmaps)
[ 228.487] (==) AMDGPU(0): Default visual is TrueColor
[ 228.487] (==) AMDGPU(0): RGB weight 888
[ 228.487] (II) AMDGPU(0): Using 8 bits per RGB (8 bit DAC)
[ 228.487] (--) AMDGPU(0): Chipset: "AMD FirePro S7150" (ChipID = 0x6929)
[ 228.487] (II) Loading sub module "fb"
[ 228.487] (II) LoadModule: "fb"
[ 228.487] (II) Loading /usr/lib64/xorg/modules/libfb.so
[ 228.488] (II) Module fb: vendor="X.Org Foundation"
[ 228.488] compiled for 1.20.4, module version = 1.0.0
[ 228.488] ABI class: X.Org ANSI C Emulation, version 0.4
[ 228.488] (II) Loading sub module "dri2"
[ 228.488] (II) LoadModule: "dri2"
[ 228.488] (II) Module "dri2" already built-in
[ 228.495] (II) Loading sub module "glamoregl"
[ 228.495] (II) LoadModule: "glamoregl"
[ 228.495] (II) Loading /usr/lib64/xorg/modules/libglamoregl.so
[ 228.503] (II) Module glamoregl: vendor="X.Org Foundation"
[ 228.503] compiled for 1.20.4, module version = 1.0.1
[ 228.503] ABI class: X.Org ANSI C Emulation, version 0.4
[ 228.557] (II) AMDGPU(0): glamor X acceleration enabled on AMD FirePro S7150
[ 228.557] (II) AMDGPU(0): glamor detected, initialising EGL layer.
[ 228.557] (==) AMDGPU(0): TearFree property default: auto
[ 228.557] (==) AMDGPU(0): VariableRefresh: disabled
[ 228.557] (II) AMDGPU(0): KMS Pageflipping: enabled
[ 228.557] (WW) AMDGPU(0): No outputs definitely connected, trying again...
[ 228.557] (WW) AMDGPU(0): Unable to find connected outputs - setting 1024x768 initial framebuffer
[ 228.557] (II) AMDGPU(0): mem size init: gart size :16e34a000 vram size: s:1ff8d4000 visible:17fa9f000
[ 228.557] (II) AMDGPU(0): Video RAM: 8381264 kByte
[ 228.557] (==) AMDGPU(0): DPI set to (96, 96)
[ 228.557] (==) AMDGPU(0): Using gamma correction (1.0, 1.0, 1.0)
[ 228.557] (II) Loading sub module "ramdac"
[ 228.557] (II) LoadModule: "ramdac"
[ 228.557] (II) Module "ramdac" already built-in
[ 228.557] (EE) AMDGPU(0): No modes.
[ 228.557] (II) UnloadModule: "amdgpu"
[ 228.557] (II) UnloadSubModule: "glamoregl"
[ 228.557] (II) Unloading glamoregl
[ 228.557] (II) UnloadSubModule: "fb"
[ 228.557] (II) Unloading fb
[ 228.563] (EE) Screen(s) found, but none have a usable configuration.
[ 228.563] (EE) Fatal server error:
[ 228.563] (EE) no screens found(EE)
[ 228.563] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help.
[ 228.563] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 228.563] (EE)
[ 228.570] (EE) Server terminated with error (1). Closing log file.
如何修复它？欢迎任何评论。
答案1
查看此线程以获得良好的答案：https://community.amd.com/thread/231483
另外，请注意 xorg 配置期望“BusID”使用十进制而不是十六进制。 “lspci”的输出为十六进制。