Public bug reported:
Ubuntu crashes when I try to use ASUS Zenbook UX31E HDMI out (with Asus
VS239H). It works nicely with console and LightDM login screen, but when I log
in to Ubuntu/Ubuntu2D, screens (external and internal) go blank.
Restarting LightDM usually works (works as in "you'll see the LightDM login
screen again), but sometimes this hangs the whole system.
Things you need to know:
1) lsb_release -rd
Description: Ubuntu 12.04 LTS
Release: 12.04
2) apt-cache policy linux-image-3.2.0-24-generic
linux-image-3.2.0-24-generic:
Installed: 3.2.0-24.37
Candidate: 3.2.0-24.37
Version table:
*** 3.2.0-24.37 0
500 http://archive.ubuntu.com/ubuntu/ precise-updates/main amd64
Packages
500 http://archive.ubuntu.com/ubuntu/ precise-proposed/main amd64
Packages
100 /var/lib/dpkg/status
3) I expect that X doesn't crash and I see output on both (or at least
one) displays.
4) X crashes, both screens turn black. Sometimes external monitor turns
red. Console usually works after the problem. LightDM has to be
restarted.
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: precise
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https://bugs.launchpad.net/bugs/989226
Title:
HDMI out doesn't work with ASUS Zenbook UX31E
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