如何防止显示输出自行切换？

Question

Vostro 3550、Debian、Gnome 和飞利浦 1080p 电视会出现这种情况。

一旦我连接 HDMI，它就会开始切换输出，并以 15 秒到 5 分钟的间隔从镜子切换到笔记本电脑显示屏，再切换到电视。

+Fn​F1和显示选项卡改变了它，只是让它继续发生。

我还应该提到的是，在整个切换过程中，电视从 1080p 转变为对比度更高、质量更低的图像。

兰德尔

>Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS1 connected (normal left inverted right x axis y axis)
   1366x768       60.0 +   40.1  
   1360x768       59.8     60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 640mm x 360mm
   1920x1080      60.0*+   50.0     30.0     25.0     30.0     25.0     24.0  
   1280x1024      60.0  
   1360x768       59.8  
   1280x720       60.0     50.0  
   1440x576       25.0  
   1024x768       60.0  
   1440x480       30.0  
   800x600        60.3  
   720x576        50.0  
   720x480        59.9  
   640x480        60.0     59.9  
DP1 disconnected (normal left inverted right x axis y axis)

后

xrandr --output LVDS1 --mode 1360x768 --output HDMI1 --same-as LVDS1

Screen 0: minimum 320 x 200, current 1360 x 768, maximum 8192 x 8192
LVDS1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1366x768       60.0 +   40.1  
   1360x768       59.8*    60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 640mm x 360mm
   1920x1080      60.0 +   50.0     30.0     25.0     30.0     25.0     24.0  
   1280x1024      60.0  
   1360x768       59.8* 
   1280x720       60.0     50.0  
   1440x576       25.0  
   1024x768       60.0  
   1440x480       30.0  
   800x600        60.3  
   720x576        50.0  
   720x480        59.9  
   640x480        60.0     59.9  
DP1 disconnected (normal left inverted right x axis y axis)

我尝试停止udev以防导致切换：

root@mach:/home/rt# sudo service udev stop
[ ok ] Stopping the hotplug events dispatcher: udevd.

root@mach:/home/rt# xrandr
Screen 0: minimum 320 x 200, current 3286 x 1080, maximum 8192 x 8192
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1366x768       60.0*+   40.1  
   1360x768       59.8     60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 640mm x 360mm
   1920x1080      60.0*+   50.0     30.0     25.0     30.0     25.0     24.0  
   1280x1024      60.0  
   1360x768       59.8  
   1280x720       60.0     50.0  
   1440x576       25.0  
   1024x768       60.0  
   1440x480       30.0  
   800x600        60.3  
   720x576        50.0  
   720x480        59.9  
   640x480        60.0     59.9  
DP1 disconnected (normal left inverted right x axis y axis)