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:
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
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)
…
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
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。