我正在使用一台带有 3 台显示器的台式机。
2 台 21 英寸戴尔显示器 1 台 34 英寸 LG 显示器
2 台戴尔显示器，一台连接到板载 VGA 端口，另一台连接到板载 HDMI 端口。
第三台 34 英寸 LG 大显示器连接到 NVIDIA GeForce GTX 1650 SUPER 的 HDMI 端口。
系统原本使用的是 Windows 10，但我上周将其替换为 Fedora 32 KDE，并成功安装了 Nvidia 驱动程序和 CUDA。它一直运行良好，直到今天，但我不知道系统到底发生了什么，或者是否在我不知情的情况下进行了某些系统更新，当我今天早上尝试启动机器时，我只能看到连接到 Nvidia 显卡的 32 英寸 LG 大显示器。系统显示其余两台戴尔显示器处于断开连接状态，它们连接到板载 VGA 和 HDMI 端口，使用英特尔板载集成 GPU。
^ john @ fedora ~ > $ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 510 (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation TU116 [GeForce GTX 1650 SUPER] (rev a1)
^ john @ fedora ~ > $ sudo xrandr
Screen 0: minimum 8 x 8, current 2560 x 1080, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 2560x1080+0+0 (normal left inverted right x axis y axis) 798mm x 334mm
2560x1080 59.98*+ 74.99 50.00
1920x1080 75.00 60.00 59.94 50.00
1680x1050 59.95
1600x900 60.00
1280x1024 75.02 60.02
1280x800 59.81
1280x720 60.00 59.94 50.00
1152x864 60.00
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 59.94
640x480 75.00 59.93 59.94
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
^ john @ fedora ~ > $ sudo lsmod | grep 'i915\|nvidia\|nouveau'
i2c_nvidia_gpu 16384 0
nvidia_drm 57344 9
nvidia_modeset 1216512 24 nvidia_drm
nvidia 27701248 1286 nvidia_modeset
i915 2621440 1
i2c_algo_bit 16384 1 i915
drm_kms_helper 262144 2 nvidia_drm,i915
cec 61440 2 drm_kms_helper,i915
drm 626688 13 drm_kms_helper,nvidia_drm,i915
video 53248 2 asus_wmi,i915
^ john @ fedora ~ > $ sudo nvidia-smi
Mon Oct 12 18:14:56 2020
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 455.28 Driver Version: 455.28 CUDA Version: 11.1 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 GeForce GTX 165... Off | 00000000:01:00.0 On | N/A |
| 0% 49C P8 12W / 100W | 465MiB / 3911MiB | 4% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 1366 G /usr/libexec/Xorg 183MiB |
| 0 N/A N/A 1563 G /usr/bin/kwin_x11 86MiB |
| 0 N/A N/A 1566 G /usr/bin/plasmashell 64MiB |
| 0 N/A N/A 1842 G ...akonadi_archivemail_agent 2MiB |
| 0 N/A N/A 1853 G .../akonadi_mailfilter_agent 2MiB |
| 0 N/A N/A 1860 G ...n/akonadi_sendlater_agent 2MiB |
| 0 N/A N/A 1862 G ...nadi_unifiedmailbox_agent 2MiB |
| 0 N/A N/A 2060 G ...AAAAAAAAA= --shared-files 113MiB |
+-----------------------------------------------------------------------------+
^ john @ fedora ~ > $ echo $XDG_SESSION_TYPE
x11
^ john @ fedora ~ > $ sudo grep GRUB_CMDLINE_LINUX /etc/sysconfig/grub
GRUB_CMDLINE_LINUX="resume=/dev/mapper/fedora_fedora-swap rd.lvm.lv=fedora_fedora/root rd.lvm.lv=fedora_fedora/swap rhgb quiet rd.driver.blacklist=nouveau modprobe.blacklist=nouveau nvidia-drm.modeset=1"
^ john @ fedora ~ > $ cat /etc/modprobe.d/blacklist.conf
blacklist nouveau
options nouveau modeset=0
options nvidia-drm modeset=1
^ john @ fedora ~ > $ cat /etc/X11/xorg.conf
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 455.28
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection
nvidia-错误报告https://www.dropbox.com/s/tq3ozp5zsy426vr/nvidia-bug-report.log.gz?dl=0
nvidia-设置https://i.stack.imgur.com/501zE.jpg
这里可能存在什么问题？