Ubuntu
xorg-server package

  1. Xenial (16.04)
  2. Bug #1715586
  3. Comment #7

Comment 7 for bug 1715586

Revision history for this message
Alex Tu (alextu) wrote :

with AOC monitor, it issued an unexpected acpi event after external monitor be disabled, that caused mode switching.

 u@u-Vostro-7570:~$ sudo acpi_listen

 # now disable external screen by $DISPLAY=:0 xrandr --output HDMI-0 --off
 jack/lineout LINEOUT unplug
 jack/videoout VIDEOOUT unplug

 # wait for about 15 secs, this acpi event somehow be issued.
 video/switchmode VMOD 00000080 00000000
 jack/lineout LINEOUT plug
 jack/videoout VIDEOOUT plug

But, this issue not happens to Dell monitor, and this proposed package passed both with Dell monitor ST2320L and P2415Qb. So, the patches helps actually.