对偶2560x1440分解问题

Question

我有22560x1440显示器(HP ZR2740w)和一个GeForce GT610卡，两个双dvi输出和1GB内存。我可以在任何一个屏幕上获得完全分辨率，在另一个屏幕上获得1/4分辨率，但在这两个屏幕上都不能获得完全分辨率。

当我使用nvidia-设置时，问题似乎可以追溯到第二个DVI端口(DFP-1)上的"Connection link: Single“。我在卡上进行了交换连接的实验，结果是交换了哪个监视器具有完全的分辨率。因此，问题不能出现在监视器或DVI电缆中。

这是一个“你输了，因为你的视频卡不能真正支持两个双dvi连接”的情况吗？还是我漏掉了什么？

我在下面发布各种诊断的输出。

-John

2:33PM humpty-6: xrandr
Screen 0: minimum 8 x 8, current 3280 x 1440, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 disconnected (normal left inverted right x axis y axis)
DVI-I-2 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440      60.0*+
   1280x720       59.9  
DVI-I-3 connected 720x1280+2560+160 left (normal left inverted right x axis y axis) 597mm x 336mm
   1280x720       59.9*+
HDMI-0 disconnected (normal left inverted right x axis y axis)


Portions of /var/log/Xorg.0.log   
[    10.041] (II) NVIDIA GLX Module  304.116  Mon Oct 28 20:59:08 PDT 2013
[    10.041] Loading extension GLX
[    10.041] (==) Matched nvidia as autoconfigured driver 0
[    10.041] (==) Matched nouveau as autoconfigured driver 1
[    10.041] (II) LoadModule: "nvidia"
[    10.041] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so
[    10.057] (II) Module nvidia: vendor="NVIDIA Corporation"
[    10.072] (II) NVIDIA dlloader X Driver  304.116  Mon Oct 28 20:40:38 PDT 2013
[    10.072] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[    10.086] (II) NVIDIA(0): Creating default Display subsection in Screen section
    "Default Screen Section" for depth/fbbpp 24/32
[    10.086] (==) NVIDIA(0): Depth 24, (==) framebuffer bpp 32
[    10.086] (==) NVIDIA(0): RGB weight 888
[    10.086] (==) NVIDIA(0): Default visual is TrueColor
[    10.086] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[    10.086] (**) NVIDIA(0): Option "NoLogo" "True"
[    10.086] (**) NVIDIA(0): Enabling 2D acceleration
[    10.970] (II) NVIDIA(GPU-0): Display (HP ZR2740w (DFP-0)) does not support NVIDIA 3D Vision
[    10.970] (II) NVIDIA(GPU-0):     stereo.
[    10.981] (II) NVIDIA(GPU-0): Display (HP ZR2740w (DFP-1)) does not support NVIDIA 3D Vision
[    10.981] (II) NVIDIA(GPU-0):     stereo.
[    10.983] (II) NVIDIA(0): NVIDIA GPU GeForce GT 610 (GF119) at PCI:7:0:0 (GPU-0)
[    10.983] (--) NVIDIA(0): Memory: 1048576 kBytes
[    10.983] (--) NVIDIA(0): VideoBIOS: 75.19.55.00.12
[    10.983] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[    10.983] (--) NVIDIA(0): Interlaced video modes are supported on this GPU
[    10.989] (--) NVIDIA(0): Valid display device(s) on GeForce GT 610 at PCI:7:0:0
[    10.989] (--) NVIDIA(0):     CRT-0
[    10.989] (--) NVIDIA(0):     CRT-1
[    10.989] (--) NVIDIA(0):     HP ZR2740w (DFP-0) (connected)
[    10.989] (--) NVIDIA(0):     HP ZR2740w (DFP-1) (connected)
[    10.989] (--) NVIDIA(0):     DFP-2
[    10.989] (--) NVIDIA(0): CRT-0: 400.0 MHz maximum pixel clock
[    10.989] (--) NVIDIA(0): CRT-1: 400.0 MHz maximum pixel clock
[    10.989] (--) NVIDIA(0): HP ZR2740w (DFP-0): 330.0 MHz maximum pixel clock
[    10.989] (--) NVIDIA(0): HP ZR2740w (DFP-0): Internal Dual Link TMDS
[    10.989] (--) NVIDIA(0): HP ZR2740w (DFP-1): 165.0 MHz maximum pixel clock
[    10.989] (--) NVIDIA(0): HP ZR2740w (DFP-1): Internal Single Link TMDS
[    10.989] (--) NVIDIA(0): DFP-2: 165.0 MHz maximum pixel clock
[    10.989] (--) NVIDIA(0): DFP-2: Internal Single Link TMDS
[    10.989] (**) NVIDIA(0): Using HorizSync/VertRefresh ranges from the EDID for  display
[    10.989] (**) NVIDIA(0):     device HP ZR2740w (DFP-0) (Using EDID frequencies has been
[    10.989] (**) NVIDIA(0):     enabled on all display devices.)
[    10.989] (**) NVIDIA(0): Using HorizSync/VertRefresh ranges from the EDID for display
[    10.989] (**) NVIDIA(0):     device HP ZR2740w (DFP-1) (Using EDID frequencies has been
[    10.989] (**) NVIDIA(0):     enabled on all display devices.)
[    10.989] (==) NVIDIA(0): 
[    10.989] (==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
[    10.989] (==) NVIDIA(0):     will be used as the requested mode.
[    10.989] (==) NVIDIA(0): 
[    10.989] (II) NVIDIA(0): Validated MetaModes:
[    10.989] (II) NVIDIA(0):     "DFP-0:nvidia-auto-select,DFP-1:nvidia-auto-select"
[    10.989] (II) NVIDIA(0): Virtual screen size determined to be 3840 x 1440
[    11.024] (--) NVIDIA(0): DPI set to (108, 107); computed from "UseEdidDpi" X config
[    11.024] (--) NVIDIA(0):     option
[    11.025] (--) Depth 24 pixmap format is 32 bpp
[    11.025] (II) NVIDIA: Using 3072.00 MB of virtual memory for indirect memory
[    11.025] (II) NVIDIA:     access.
[    11.033] (II) NVIDIA(0): Setting mode "DFP-0:nvidia-auto-select,DFP-1:nvidia-auto-select"
[    11.076] Loading extension NV-GLX
[    11.127] (==) NVIDIA(0): Disabling shared memory pixmaps
[    11.127] (==) NVIDIA(0): Backing store disabled
[    11.127] (==) NVIDIA(0): Silken mouse enabled
[    11.128] (==) NVIDIA(0): DPMS enabled
[    11.128] Loading extension NV-CONTROL
[    11.129] Loading extension XINERAMA
[    11.129] (II) Loading sub module "dri2"
[    11.129] (II) LoadModule: "dri2"
[    11.129] (II) Module "dri2" already built-in
[    11.129] (II) NVIDIA(0): [DRI2] Setup complete
[    11.129] (II) NVIDIA(0): [DRI2]   VDPAU driver: nvidia
[    11.129] (--) RandR disabled

Answer 1

问题是你的卡。它只能处理1x双链路dvi的全分辨率，第二个是单链路dvi。1GB或ram不足以在2台显示器上推动2560x1440。这就是为什么你只把它放在一个显示器上。这张卡可以在1920*1080时驱动2台显示器，但你不会在2560*1440获得2台。

2*(1920*1080)= 4,147,200正常设置

1*(2560*1600) = 4,096,000 (这是该卡的最大值)

1.25*(2560*1440) =4,608,000，这是你在你的设置中看到的。这对你的卡来说太过分了。

您的卡不能支持2显示器的最大分辨率和没有规格单，您查找的网站和购买网站没有充分解释这一点。

有个问题。