四显示器可用作镜像显示器,但不能作为扩展显示器

四显示器可用作镜像显示器,但不能作为扩展显示器

所以我放弃了 fglrx 驱动程序,因为它不支持 GPU,现在我在 14.04 上使用常规 radeon 驱动程序和 4 个显示器。我让它们都工作得很好,All Settings/Displays mirror mode但是当我尝试取消选中“镜像显示”时,我得到“无法应用所选的显示器配置/无法设置 CRTC 64 的配置”弹出错误,并且要么显示器 3 和 4 都冻结在最后一幅图像上,要么 3 可以工作,但 4 变黑,没有信号

$ sudo lspci -nn | grep VGA
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RV630 XT [Radeon HD 2600 XT] [1002:9588]
04:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RV630 XT [Radeon HD 2600 XT] [1002:9588]

$ sudo lshw -c video
  *-display               
       description: VGA compatible controller
       product: RV630 XT [Radeon HD 2600 XT]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:46 memory:c0000000-cfffffff memory:fe6e0000-fe6effff ioport:a000(size=256) memory:fe6c0000-fe6dffff
  *-display
       description: VGA compatible controller
       product: RV630 XT [Radeon HD 2600 XT]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:04:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:47 memory:d0000000-dfffffff memory:fe9e0000-fe9effff ioport:d000(size=256) memory:fe9c0000-fe9dffff

更多信息

$ sudo xrandr
Screen 0: minimum 320 x 200, current 7680 x 1200, maximum 8192 x 8192
DVI-0 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm x 324mm
   1920x1200      60.0*+
   1600x1200      60.0  
...more resolutions...
DIN disconnected (normal left inverted right x axis y axis)
DVI-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080      60.0*+   50.0     59.9  
   1920x1080i     60.1     50.0     60.0  
...more resolutions...
DVI-1-2 connected 1920x1080+3840+0 527mm x 296mm
   1920x1080      60.0*+   50.0     59.9     30.0     30.0  
   1920x1080i     60.1     50.0     60.0  
...more resolutions...
DIN-1-1 disconnected
DVI-1-3 connected 1920x1080+5760+0 527mm x 296mm
   1920x1080      60.0*+   50.0     59.9     30.0     30.0  
   1920x1080i     60.1     50.0     60.0  
...more resolutions...
  1920x1080 (0x45)  148.5MHz
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock   67.5KHz
        v: height 1080 start 1084 end 1089 total 1125           clock   60.0Hz
...more resolutions...

编辑

有人有带 Radeon 驱动程序的 ATI 卡吗?

答案1

这看起来像是一个错误(可能与 CRTC 共享有关)。据我所知,AMD 的开源 GPU 驱动程序团队对错误报告反应迅速。您可以在以下位置找到错误跟踪器和邮件列表http://wiki.x.org/wiki/radeon/- 他们在 irc.freenode.net 上还有一个 IRC 频道 #radeon,供 radeon 用户和开发人员使用。我今天刚看到一条关于他们的一位开源开发人员的评论15 分钟内修复错误在 IRC 频道上报告后,我建议尝试一下该频道或邮件列表。

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