When I run xrandr
on the terminal I see DVI-0 connected
and DisplayPort-1 connected
. I only use DVI-0
as my output. I don't have two screens, or anything else connected to my computer, so I don't know why DisplayPort-1
is even presented. I use an HDMI to DVI adapter..
Since DisplayPort-1
is presented, I am getting some weird behavior when changing the resolution. If I run xrandr -s 1024x768
and I was previously in a resolution of 800x600
, then I will get a cut off screen because for some reason I'm changing the resolution of the DisplayPort. This also happens going the other way, from 1024x768
to 800x600
.
In the past I would add video=DP-1:d
to the grub boot options to hide this "phantom" display. This would fix all the funny problems. However, this grub option no longer works! After adding it to GRUB_CMDLINE_LINUX_DEFAULT
in /etc/default/grub
and doing an update-grub
, the computer still comes up with the phantom DisplayPort-1
output.
I'm running Ubuntu 14.04.2 LTS. Any ideas?