我最近将工作电脑搬回家，并将其连接到新显示器。一台显示器工作正常，另一台（通过显示端口连接的 AOC 显示器）偶尔闪烁和闪烁，然后会自动进入睡眠状态，我必须将其断开/重新连接到电脑才能将其唤醒。
我以前在办公室使用其他戴尔显示器时从未遇到过这个问题。我在使用 18.04 时遇到了这个问题，因此尝试更新到 18.10，但问题仍然存在。我也尝试过更改刷新率，但没有效果。
这是输出xrandr：
Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 8192 x 8192
HDMI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 597mm x 336mm
1920x1080 63.69*+ 60.00 60.00 50.00 59.94 24.00 23.98
1920x1080i 60.00 60.00 50.00 59.94
1680x1050 59.88
1600x900 60.00
1280x1024 75.02 60.02
1280x960 60.00
1280x800 59.91
1280x720 60.00 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
800x600 72.19 75.00 60.32 56.25
720x576 50.00 50.00
720x576i 50.00 50.00
720x480 60.00 60.00 59.94 59.94 59.94
720x480i 60.00 60.00 59.94 59.94
640x480 75.00 72.81 66.67 60.00 59.94 59.94
720x400 70.08
DP-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 509mm x 286mm
1920x1080 60.00*+ 60.00 50.00 59.94
1920x1080i 60.00 50.00 59.94
1680x1050 59.95
1280x1024 75.02 60.02
1440x900 59.89
1280x960 60.00
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
720x576 50.00 50.00 50.00
720x480 60.00 60.00 59.94 59.94 59.94
640x480 75.00 72.81 66.67 60.00 59.94 59.94
720x400 70.08
HDMI-2 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-3 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
调用时lspci | grep VGA得到：
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
我被难住了。欢迎提出任何建议。