我使用 1080p 显示器安装了 Ubuntu 20.04，因为我的主板不向 HDMI 输出 BIOS 信息。安装完成后，我断开了 1080p 显示器的连接，重新插入 HDMI 4k 显示器并打开电脑电源。第一次启动时没有显示。所以我重新连接了 1080p 显示器并完成了初始配置。然后我进入显示设置，将 4k 显示器的分辨率切换为 1080p，然后切换回 4k，它开始工作了。然后系统进入睡眠状态后它不会再唤醒，我不得不再次进行相同的分辨率更改才能让它工作。有什么方法可以解决这个问题，让它在唤醒或启动后总是能自行解决问题吗？
xrandr 输出：
Screen 0: minimum 8 x 8, current 5760 x 2160, maximum 32767 x 32767
DVI-D-0 connected 1920x1080+3840+0 (normal left inverted right x axis y axis) 521mm x 293mm
1920x1080 60.00*+
1680x1050 59.95
1600x1200 60.00
1440x900 74.98 59.89
1280x1024 75.02 60.02
1280x960 60.00
1152x864 75.00
1024x768 75.03 70.07 60.00
800x600 75.00 72.19 60.32 56.25
640x480 75.00 72.81 59.94
HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 700mm x 400mm
3840x2160 60.00 + 60.00 59.94* 50.00 29.97 25.00 23.98 23.98
2560x1440 59.95
1920x1080 60.00 59.94 50.00 29.97 25.00 23.98 60.00 50.04
1680x1050 59.95
1600x1200 60.00
1440x900 59.89
1400x1050 59.98
1280x1024 75.02 60.02
1280x960 60.00
1280x720 60.00 59.94 50.00
1024x768 75.03 70.07 60.00
800x600 75.00 72.19 60.32 56.25
720x576 50.00
720x480 59.94
640x480 75.00 72.81 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)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)
通过运行以下命令获取有关监视器的信息：grep "NVIDIA(GPU-0)" /var/log/Xorg.0.log |head -17| cut -d\: -f2
ViewSonic VA2431 Series (DFP-0)
ViewSonic VA2431 Series (DFP-0)
ViewSonic VA2431 Series (DFP-0)
ViewSonic VX3211-4K (DFP-1)
ViewSonic VX3211-4K (DFP-1)
ViewSonic VX3211-4K (DFP-1)
DFP-2
DFP-2
DFP-2
DFP-3
DFP-3
DFP-3
DFP-4
以下是来自的视频卡信息lspci
0d:00.0 VGA compatible controller: NVIDIA Corporation GP104 [GeForce GTX 1080] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd GP104 [GeForce GTX 1080]
Flags: bus master, fast devsel, latency 0, IRQ 162
Memory at f5000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f0000000 (64-bit, prefetchable) [size=32M]
I/O ports at f000 [size=128]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia