This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1631678
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1631678
Title:
Build in display doesn't show a screen
Status in linux package in Ubuntu:
Incomplete
Bug description:
I'm using UX21A Asus Zenbook Prime.
When I connected HDMI socket to an external display and turn on the
laptop, Ubuntu didn't show build in display even it said display was
recognized and activated. It happened on Ubuntu 16.04 and Linux Mint
18 Mint even when they were started as Live USB booting.
When I switched off the build in display and reactivate it through
Display Setting GUI, it started showing. But with xrandr command, it
didn't.
I unplugged HDMI and turn on the laptop and plug HDMI again after
confirmed the BIOS Logo, the problem didn't show up.
The situation I confirmed on several environment were all the same.
It suppose to be caused by a problem which the laptop considers the
external display as primary one.
So currently, I unplug the HDMI when I start it up.
I also asked in askubuntu.com but it doesn't seem I could get the
feedback. This is my first bug repport and please be kind.
sudo lspci -vnvn > lspci-vnvn.log
returns
Ubuntu 4.4.0-38.57-generic 4.4.19
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