我刚刚升级到 18.04，突然我的 HDMI 无法连接。
xrandr
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
eDP-1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1366x768 60.00*+
...
...
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
lspci | VGA
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 510 (rev 07) …