使用 KVM 切换器设置双显示器:Kubuntu 中的随机屏幕空白

使用 KVM 切换器设置双显示器:Kubuntu 中的随机屏幕空白

我有一个连接到 KVM 切换器的双显示器设置(链接:https://es.aliexpress.com/item/1005005992520783.html?spm=a2g0o.order_list.order_list_main.147.21ef194de9qFxg&gatewayAdapt=glo2esp),其中一个显示器通过 HDMI 连接,另一个通过 DPI 连接。我运行的是 Kubuntu 23.10,采用默认屏幕显示设置。笔记本电脑屏幕(Thinkpad)在配置过程中被禁用。

我遇到的问题是,一个或两个屏幕会随机变黑。有时是一个屏幕,有时是另一个屏幕,有时是两个屏幕。重新启动系统通常可以暂时解决问题。

我尝试使用 arandr 等替代方案来配置显示设置,但问题仍然存在。我不确定如何排除故障或解决它。

运行lspci ; xrandr将返回以下内容,并在几秒钟内使辅助屏幕变黑:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
00:1c.3 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #4 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (4) I219-V (rev 21)
03:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
04:00.0 Non-Volatile memory controller: Intel Corporation SSD 600P Series (rev 03)



Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 16384 x 16384
eDP-1 connected (normal left inverted right x axis y axis)
   1920x1080     60.02 +  60.02    48.01  
   1680x1050     60.02  
   1400x1050     60.02  
   1600x900      60.02  
   1280x1024     60.02  
   1400x900      60.02  
   1280x960      60.02  
   1440x810      60.02  
   1368x768      60.02  
   1280x800      60.02  
   1280x720      60.02  
   1024x768      60.02  
   960x720       60.02  
   928x696       60.02  
   896x672       60.02  
   1024x576      60.02  
   960x600       60.02  
   960x540       60.02  
   800x600       60.02  
   840x525       60.02  
   864x486       60.02  
   700x525       60.02  
   800x450       60.02  
   640x512       60.02  
   700x450       60.02  
   640x480       60.02  
   720x405       60.02  
   684x384       60.02  
   640x360       60.02  
   512x384       60.02  
   512x288       60.02  
   480x270       60.02  
   400x300       60.02  
   432x243       60.02  
   320x240       60.02  
   360x202       60.02  
   320x180       60.02  
HDMI-1 connected primary 1920x1080+1920+0 (normal left inverted right x axis y axis) 598mm x 336mm
   1920x1080     60.00*+  50.00    59.94  
   1680x1050     59.88  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x800      59.91  
   1152x864      75.00  
   1280x720      60.00    50.00    59.94  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08  
DP-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 598mm x 336mm
   1920x1080     60.00*+  50.00    59.94  
   1680x1050     59.88  
   1600x900      60.00  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x800      59.91  
   1152x864      75.00  
   1280x720      60.00    60.00    50.00    59.94  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08  
HDMI-2 disconnected (normal left inverted right x axis y axis)

有人在 Kubuntu 中遇到过类似的双显示器设置和 KVM 切换问题吗?是否有任何具体的故障排除步骤或替代配置可以尝试解决此问题?任何见解或建议都将不胜感激。谢谢!

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