amd gpu但在intel集成显卡上显示

在我的Ubuntu 12.04上，我将显示器连接到板载的intel图形。我想将我的ati radeon 6770用于opencl任务（例如比特币挖掘）。

到目前为止，我无法弄清楚如何让ati驱动程序工作。当调用“aticonfig --initial -f”时，它总是编写一个忽略intel图形的新xorg.conf。在启动时，它仅在我将显示器连接到ati卡时才有效。

所以我手动篡改了xorg.conf并得到了这个：

Section "ServerLayout"
    Identifier     "Default Monitor"
    Screen      0  "myscreen" 0 0
    Screen      1  "deadscreen" RightOf "myscreen"
EndSection

Section "Module"
EndSection

Section "Monitor"
    Identifier "Default Monitor"
    Option "VendorName" "Monitor Vendor"
    Option "ModelName" "Monitor Name"
    Option "DPMS" "true"
EndSection

Section "Monitor"
    Identifier "null Monitor"
    Option         "Enable" "false"
EndSection

Section "Device"
    Identifier "Intel Integrated Graphics"
    Driver     "intel"
    BusID      "PCI:0:2:0"
    Screen 0
EndSection

Section "Device"
    Identifier  "aticonfig-Device[0]-0"
    Driver      "fglrx"
    BusID       "PCI:1:0:0"
    Screen 1
EndSection

Section "Screen"
    Identifier "myscreen"
    Device     "Intel Integrated Graphics"
    Monitor    "Default Monitor"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     24
    EndSubSection
EndSection

Section "Screen"
    Identifier "deadscreen"
    Device     "aticonfig-Device[0]-0"
    Monitor    "null Monitor"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     24
    EndSubSection
EndSection

我认为这可能是正确的方法因为我看到X试图在/var/log/Xorg.0.log中启动两个驱动程序。但是fglrx驱动程序似乎崩溃了（xorg.0.log结束）：

Backtrace:
[     6.625] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7fb5cd41b846]
[     6.625] 1: /usr/bin/X (0x7fb5cd293000+0x18c6ea) [0x7fb5cd41f6ea]
[     6.625] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fb5cc5b9000+0xfcb0) [0x7fb5cc5c8cb0]
[     6.625] 3: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/drivers/fglrx_drv.so (xdl_xs111_atiddxGetGPUMapInfo+0x1b1) [0x7fb5c88e16b1]
[     6.625] 4: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/drivers/fglrx_drv.so (atiddxGetGPUMapInfo+0xd) [0x7fb5c87bcc0d]
[     6.625] 5: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/extensions/libglx.so (0x7fb5ca12d000+0x1ab29) [0x7fb5ca147b29]
[     6.625] 6: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/extensions/libglx.so (0x7fb5ca12d000+0x1cf8c) [0x7fb5ca149f8c]
[     6.625] 7: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/extensions/libglx.so (0x7fb5ca12d000+0x1ee55) [0x7fb5ca14be55]
[     6.626] 8: /usr/bin/X (InitExtensions+0x99) [0x7fb5cd350069]
[     6.626] 9: /usr/bin/X (0x7fb5cd293000+0x3d605) [0x7fb5cd2d0605]
[     6.626] 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7fb5cb44e76d]
[     6.626] 11: /usr/bin/X (0x7fb5cd293000+0x3daad) [0x7fb5cd2d0aad]
[     6.626] Segmentation fault at address 0x14
[     6.626] 
Caught signal 11 (Segmentation fault). Server aborting
[     6.626] 

如果有人能够在使用集成显卡进行显示时如何配置我的ATI卡，我会非常高兴。

更新

我使用了大部分的jjhughes57配置并在intel上成功启动了X服务器（虽然键盘布局有所改变，但很有趣）。

不幸的是，第二台X服务器（fglrx）没有完全启动。它在启动后立即关闭

[     6.265] (II) fglrx(0): Restoring Recent Mode via PCS is not supported in RANDR 1.2 capable environments
[     6.296] (II) UnloadModule: "mouse"
[     6.296] (II) Unloading mouse
[     6.296] (II) UnloadModule: "kbd"
[     6.296] (II) Unloading kbd
[     6.298] (II) fglrx(0): Shutdown CMMQS
[     6.298] (II) fglrx(0): [uki] removed 1 reserved context for kernel
[     6.298] (II) fglrx(0): [uki] unmapping 8192 bytes of SAREA 0x2000 at 0x7fbef8209000
[     6.337] (II) fglrx(0): Interrupt handler Shutdown.
[     6.470]  ddxSigGiveUp: Closing log
[     6.470] Server terminated successfully (0). Closing log file.

感谢任何暗示这里有什么问题。

解

就我而言，解决方案非常简单。主要是xorg.conf（来自jjhughes57）让我走上正轨。其余问题可以在/etc/lightdm/lightdm.conf中修复。我的最终版本是：

[LightDM]
seats=Seat:0 Seat:1

[SeatDefaults]
autologin-user-timeout=0
autologin-session=lightdm-autologin
greeter-session=lightdm-gtk-greeter


[Seat: 0]
xserver-layout=seat0
xserver-command=/usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -sharevts -novtswitch
autologin-guest=false
autologin-user=fx
autologin-user-timeout=0
autologin-session=lightdm-autologin
user-session=ubuntu

[Seat: 1]
xserver-layout=seat1
xserver-command=/usr/bin/X :1 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -sharevts -novtswitch
autologin-guest=true
user-session=ubuntu

一个问题是“/usr/share/xgreeters/lightdm-gtk-greeter.desktop”丢失了。在再次正确安装lightdm-gtk-greeter后，第二台X-server成功上线。现在需要满足以下要求：

1. X需要接受以下连接：1（假设：1是你的
2. fglrx-display）您的用户需要在以下位置打开X客户端的权限：1

实际上我首先尝试使用autologin-guest = false，但这不起作用。使用autologin-guest = true和正在运行的用户会话（作为访客用户），您需要禁用X访问控制（这至少是最简单的）。例如：显示：0作为root：

# su - guest-6ht0hq
guest-6ht0hq$ echo $DISPLAY
:0.0
guest-6ht0hq$ export DISPLAY=:1
guest-6ht0hq$ xhost +
access control disabled, clients can connect from any host
guest-6ht0hq$

现在在另一个终端上（以root身份）：

# DISPLAY=:1.0 aticonfig --adapter=0 --od-getclocks
Adapter 0 - AMD Radeon HD 6700 Series 
                            Core (MHz)    Memory (MHz)
           Current Clocks :    850           1000
             Current Peak :    850           1000
  Configurable Peak Range : [500-970]     [1000-1430]
                 GPU load :    0%
#

所以我非常接近解决这个问题。我所拥有的基本Idead是一个多席位会议。这允许ATI卡具有自己的X会话和Intel显示器以具有其自己的X会话。

1. 确保PCIE是系统的默认显示，但您的系统BIOS中已启用板载GPU
2. 修改我们的/etc/X11/xorg.conf看起来像这样......

Section "ServerLayout"
        Identifier     "seat0"
        Screen      0  "My screen 1" 0 0
        Option      "Clone" "off"
        Option      "AutoAddDevices" "off"
        Option      "DisableModInDev" "true"
        Option      "SingleCard" "on"   # use this to simplfied isolatedevice option
        Option      "AllowEmptyInput"       "true"
EndSection

Section "ServerLayout"
        Identifier     "seat1"
        Screen         "aticonfig-Screen[0]-0" 0 0
        Option      "Clone" "off"
        Option      "AutoAddDevices" "off"
        Option      "DisableModInDev" "true"
        Option      "SingleCard" "on"   # use this to simplfied isolatedevice option
        Option      "AllowEmptyInput"       "true"
EndSection

Section "Module"
EndSection

Section "InputClass"
    Identifier      "Ignore Streamzap IR"
    MatchProduct    "Streamzap"
    MatchIsKeyboard "yes"
    Option      "Ignore" "true"
EndSection

Section "Monitor"
    Identifier   "aticonfig-Monitor[0]-0"
    Option      "VendorName" "ATI Proprietary Driver"
    Option      "ModelName" "Generic Autodetecting Monitor"
    Option      "DPMS" "true"
EndSection

Section "Device"
    Identifier  "aticonfig-Device[0]-0"
    Driver      "fglrx"
    Option      "Capabilities" "0x00000800"
    BusID       "PCI:1:0:0"
EndSection

Section "Screen"
    Identifier "aticonfig-Screen[0]-0"
    Device     "aticonfig-Device[0]-0"
    Monitor    "aticonfig-Monitor[0]-0"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     24
    EndSubSection
EndSection

Section "Monitor"
        Identifier   "My monitor 1"
EndSection

Section "Device"
        Identifier  "Sandybridge"
        Driver      "intel"
        BusID       "PCI:0:2:0"
EndSection

Section "Screen"
        Identifier "My screen 1"
        Device     "Sandybridge"
        Monitor    "My monitor 1"
        DefaultDepth     24
        SubSection "Display"
                Depth     24
                Modes    "1280x720"
        EndSubSection
EndSection

3. 最后我不得不编辑/etc/lightdm/lightdm.conf

[LightDM]
seats=Seat:0 Seat:1

[SeatDefaults]
autologin-user-timeout=0
autologin-session=lightdm-autologin
greeter-session=lightdm-gtk-greeter


[Seat: 0]
xserver-layout=seat0
xserver-command=/usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -sharevts -novtswitch
autologin-guest=false
autologin-user=joe
autologin-user-timeout=0
autologin-session=lightdm-autologin
greeter-session=lightdm-gtk-greeter
user-session=mythbuntu

[Seat: 1]
xserver-layout=seat1
xserver-command=/usr/bin/X :1 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -sharevts -novtswitch

我现在有两个显示器启动。我遇到了一个问题

sudo aticonfig --adapter=0 --od-getclocks

工作...但这会让你超过你当前的错误。

您需要将显示器连接到卡或连接虚拟插头。否则，卡片就会死机。如果您的显示器有两个连接，您只需将其中一个连接到卡而不使用该输入。