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[Jussi Palomäki <jmmpal@xxxxxx>]

Hi guys, here's my final report:

I managed to reproduce the problem even after installing ASUS Live
update,  even with smaller CPU usage. Key thing was to put more files to
SSD (the problem came back, when SSD usage reached about 50 GB). So it
seems both the CPU and SSD usage affect the stability. This was 3 weeks
ago. I didn't post this earlier because I wanted to try to unplug the
battery first, as Oleksij suggested. The most difficult part of this
testing was to find a torx T5 screwdriver - seriously, the smallest I
was able to find in Turku was T7! Fortunately my brother had one so when
I visited him two weeks ago I was finally able to open my laptop and try
this one last thing.

All crashing stopped completely after I opened my laptop and
***unplugged the battery***. I have so far tested this with Windows 7,
Ubuntu 13.04 and 13.10, forced CPU usage to stay at 100% and filled my
SSD up to 80% with 3 partitions (FAT32, NTFS and Ext4). Not a single
crash in 2 weeks!

I believe mine was actually a memory controller related problem that was
originally caused by a bug in Ubuntu 11.10:

https://help.ubuntu.com/community/AsusZenbook#Suspend

Feels pretty stupid that I didn't try this 1½ years ago... maybe I was
just too afraid of losing warranty (and I didn't find a suitable
screwdriver) or something. But now everything works fine.

I hope this helps.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/989191

Title:
  Asus Zenbook UX31E powers off on plugin in/out AC adapter

Status in The Linux Kernel:
  Unknown
Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  When I have logged in to Unity and plug in or out AC adapter to Asus
  Zenbook UX31E, computer powers off. Sometimes this needs couple of
  tries (waiting or not waiting in between) when plugin in or out AC
  adapter.

  This problem doesn't occur when I have switched to console or when in LightDM login screen. Problem doesn't happen with MS Windows either.
  And yes, there's enough power in my battery too, I can boot up and use the computer without AC adapter.

  syslog prints these lines to stdout in console, when plugin AC adapter first out and then in:
    [  869.521396] asus_wmi: Unknown key 57 pressed
    [  874.704525] asus_wmi: Unknown key 58 pressed
    [  876.993295] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id

  What you also need:

  1) lsb_release -rd
    Description:	Ubuntu 12.04 LTS
    Release:	12.04

  2) I could guess kernel, but it happens _only_ when I have logged in
  to Unity (or Unity 2D)...

  3) I expect that my computer doesn't power off.

  4) Computer powers off.

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