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#1 2024-03-13 00:42:56

ADSWT518
会员
注册时间: 2021-07-02
帖子: 6

用HDMI线和DP线从nvidia显卡上直接连两个显示器,其中HDMI黑屏

系统显示设置里说我开启了两个显示器,鼠标也可以移动到HDMI线连接的显示器里,但就是不显示画面......

xrandr输出

Screen 0: minimum 8 x 8, current 7680 x 2160, maximum 32767 x 32767
HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 621mm x 341mm
   3840x2160     60.00*+  59.94    50.00    29.98    29.97    25.00    23.98  
   2560x1440     59.95  
   1920x2160     59.99  
   1920x1080     60.00    59.94    50.00  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x720      60.00    59.94    50.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93  
DP-0 connected 3840x2160+3840+0 (normal left inverted right x axis y axis) 621mm x 341mm
   3840x2160     60.00*+  29.98  
   2560x1440     59.95  
   1920x2160     59.99  
   1920x1080     60.00    59.94    50.00  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x720      60.00    59.94    50.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93  
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)

xrandr --listproviders输出

Providers: number : 1
Provider 0: id: 0x1b7 cap: 0x1, Source Output crtcs: 4 outputs: 7 associated providers: 0 name:NVIDIA-0

xrandr --listmonitors输出

Monitors: 2
 0: +*HDMI-0 3840/621x2160/341+0+0  HDMI-0
 1: +DP-0 3840/621x2160/341+3840+0  DP-0

使用的图形界面是X11+KDE

提前感谢各位大神!!!

最近编辑记录 ADSWT518 (2024-03-13 00:48:38)

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#2 2024-03-13 00:51:14

ADSWT518
会员
注册时间: 2021-07-02
帖子: 6

Re: 用HDMI线和DP线从nvidia显卡上直接连两个显示器,其中HDMI黑屏

补充一个信息:如果在开机前把DP线拔掉,那么开机后HDMI线的显示器就能够显示。此时再接上DP线的话,两个显示器都可以正常显示。

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#3 2024-03-29 17:33:30

misayawf
会员
注册时间: 2024-03-29
帖子: 4

Re: 用HDMI线和DP线从nvidia显卡上直接连两个显示器,其中HDMI黑屏

应该是英伟达的问题,我的三DP接上分屏器就黑屏,一个亮的都没有,直接接显卡就没问题,我建议不要用英伟达 big_smile

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