我有 2 台 2560x1440 顯示器 (HP ZR2740w)，以及兩個雙 dvi 輸出和 1GB RAM 的 GeForce GT610 卡。我可以在任一螢幕上獲得全分辨率，在另一個螢幕上獲得 1/4 分辨率，但兩者都不能獲得全分辨率。
當我使用 nvidia-settings 時，問題似乎可以追溯到第二個 DVI 連接埠 (DFP-1) 上的「連接連結：單一」。我嘗試過交換卡上的連接，這會導致交換具有全解析度的顯示器。因此，問題不可能出在顯示器或 DVI 連接線。
這是「你輸了，因為你的顯示卡不真正支援兩個雙 dvi 連線」的情況嗎？還是我錯過了什麼？
我在下面發布了各種診斷的輸出。
-約翰
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
答案1
問題是你的卡。它只能處理全解析度下的 1x 雙鏈路 dvi，第二個是單鏈路 dvi。 1 GB 或 RAM 不足以在 2 台顯示器上推送 2560x1440。這就是為什麼您只能在一台顯示器上獲得它。這張卡可以驅動 2 個 1920*1080 的顯示器，但你不會得到 2 個 2560*1440 的顯示器。
2*(1920*1080)= 4,147,200 可以做的正常設定
1*(2560*1600) = 4,096,000（這是該卡的最大值）
1.25*(2560*1440) =4,608,000 這是您在設定中看到的結果。這對你的卡來說太多了。
您的卡無法支援 2 個最大解析度的顯示器，而且您在網站和購買網站上尋找的規格表也無法充分解釋這一點。
問題。