显示管理器 SDDM 不使用第三台显示器

显示管理器 SDDM 不使用第三台显示器

我的电脑连接了 2 个显卡和 3 个显示器 - 2 个连接到一个显卡,1 个连接到另一个显卡。我使用 X 运行 Ubuntu Server,并且希望尽可能使用最轻量级的显示管理器。我尝试使用 SDDM,但我遇到一个问题,即启动后我的系统桌面仅使用连接到一个显卡的 2 个显示器,而第 3 个显示器不可用。

我已经安装并运行了具有完全相同系统配置的 LightDM,并且使用该管理器启动后,我的系统的桌面使用了所有 3 个显示器。

在我的情况下,是否可以配置 SDDM 与 3 个显示器一起工作,或者这是 SDDM 的设计限制?

以下是有关运行 SDDM 和 LightDM 的系统的一些信息:

  1. Xrandr –listproviders完全相同:
Providers: number : 2
Provider 0: id: 0x55 cap: 0x9, Source Output, Sink Offload crtcs: 4 outputs: 2 associated providers: 1 name:Unknown AMD Radeon GPU @ pci:0000:08:00.0
Provider 1: id: 0x93 cap: 0x6, Sink Output, Source Offload crtcs: 4 outputs: 3 associated providers: 1 name:modesetting
  1. Xrandr –query在部分上有一点不同DVI-D-1-2

光子发射

Screen 0: minimum 320 x 200, current 2293 x 3240, maximum 16384 x 16384
HDMI-A-0 connected 1920x1080+373+2160 (normal left inverted right x axis y axis) 477mm x 268mm
   1920x1080     59.93*+
DVI-D-0 connected primary 1920x1080+0+1080 (normal left inverted right x axis y axis) 477mm x 268mm
   1920x1080     59.93*+
DVI-D-1-2 connected 1920x1080+143+0 (normal left inverted right x axis y axis) 598mm x 336mm
   1920x1080     60.00*+  59.96    50.00    59.94    59.93  
HDMI-1-2 disconnected (normal left inverted right x axis y axis)
VGA-1-1 disconnected (normal left inverted right x axis y axis)

星载数字多模光纤

Screen 0: minimum 320 x 200, current 2293 x 3240, maximum 16384 x 16384
HDMI-A-0 connected 1920x1080+373+2160 (normal left inverted right x axis y axis) 477mm x 268mm
   1920x1080     59.93*+
DVI-D-0 connected primary 1920x1080+0+1080 (normal left inverted right x axis y axis) 477mm x 268mm
   1920x1080     59.93*+
DVI-D-1-2 connected (normal left inverted right x axis y axis)
   1920x1080     60.00 +  59.96    50.00    59.94    59.93  
HDMI-1-2 disconnected (normal left inverted right x axis y axis)
VGA-1-1 disconnected (normal left inverted right x axis y axis)
  1. Xrandr –listmonitors相应地不同:

光子发射

0: +*DVI-D-0 1920/477x1080/268+0+1080  DVI-D-0
 1: +HDMI-A-0 1920/477x1080/268+373+2160  HDMI-A-0
 2: +DVI-D-1-2 1920/598x1080/336+143+0  DVI-D-1-2

星载数字多模光纤

0: +*DVI-D-0 1920/477x1080/268+0+1080  DVI-D-0
 1: +HDMI-A-0 1920/477x1080/268+373+2160  HDMI-A-0
  1. Inxi -Gx显示 SDDM 出现某些故障:

光子发射

Graphics:  Device-1: NVIDIA GK208B [GeForce GT 710] vendor: Gigabyte driver: nouveau v: kernel bus ID: 01:00.0 
           Device-2: AMD Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] driver: amdgpu v: kernel bus ID: 08:00.0 
           Display: x11 server: X.Org 1.20.13 driver: amdgpu,ati,modesetting unloaded: fbdev,vesa 
           resolution: 1920x1080~60Hz, 1920x1080~60Hz, 1920x1080~60Hz 
           OpenGL: renderer: AMD RAVEN (DRM 3.35.0 5.4.0-91-generic LLVM 11.0.0) v: 4.6 Mesa 20.2.6 direct render: Yes 

星载数字多模光纤

Graphics:  Device-1: NVIDIA GK208B [GeForce GT 710] vendor: Gigabyte driver: nouveau v: kernel bus ID: 01:00.0 
           Device-2: AMD Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] driver: amdgpu v: kernel bus ID: 08:00.0 
           Display: x11 server: X.Org 1.20.13 driver: amdgpu,modesetting FAILED: ati unloaded: fbdev,vesa 
           resolution: 1920x1080~60Hz, 1920x1080~60Hz 
           OpenGL: renderer: AMD RAVEN (DRM 3.35.0 5.4.0-91-generic LLVM 11.0.0) v: 4.6 Mesa 20.2.6 direct render: Yes 

系统信息:

uname -a
hostname 5.4.0-91-generic #102-Ubuntu SMP Fri Nov 5 16:31:28 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
lsb_release -a
Description:    Ubuntu 20.04.2 LTS

更新

只是为了消除升级使用而产生的潜在问题sudo apt update,并且sudo apt upgrade没有效果。

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