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[Sabin Iacob <iacobs@xxxxxxxxxxxx>]

the "buggy and outdated" bios seems to be mostly the same as the one
that came with the machine (207), the changelog only mentions something
about disk power management; I updated it, anyway:

UX302LG.210
06/16/2014

This seems to be a GPU lockup, though, when it happened the day before
yesterday I was looking at something on youtube, and the audio (over
Bluetooth, no less) kept going until the end of the clip; when
attempting to switch to a text console I saw briefly something along the
lines of "gpu queue underrun"; the keyboard is useless, though, apart
from the Magic SysRq combinations.

Nothing gets logged, btw (and the disk is fine,  syslog records the
kernel messages when I'm doing the SysRq dance (sync, remount read-only,
reboot).

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https://bugs.launchpad.net/bugs/1402401

Title:
  Xorg freeze when switching to text console and back

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Sometimes the computer becomes unresponsive after switching to a text
  console and back; this seems to be an Xorg and / or kernel driver
  crash (there is a backtrace in dmesg that seems to be from Intel
  drivers).

  The rest of the system worked fine, I could SSH into it and restart
  Xorg. I had an (html5) Youtube video playing in Firefox when the
  lockup happened, I'll try to see if that was the culprit (I switched a
  few times to text console and back after restarting X and all was
  fine, but I didn't have a video running)

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xorg 1:7.7+7ubuntu2
  ProcVersionSignature: Ubuntu 3.16.0-28.37-generic 3.16.7-ckt1
  Uname: Linux 3.16.0-28-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  BootLog:
   * Setting up X socket directories...        
[ OK ]
    * Restoring resolver state...        
[ OK ]
   Starting supervisor:
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Sun Dec 14 17:47:30 2014
  DistUpgraded: Fresh install
  DistroCodename: utopic
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:13ad]
  InstallationDate: Installed on 2014-12-05 (8 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 03eb:8a03 Atmel Corp. 
   Bus 001 Device 003: ID 1bcf:2987 Sunplus Innovation Technology Inc. 
   Bus 001 Device 007: ID 8087:07dc Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. UX302LG
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.16.0-28-generic.efi.signed root=UUID=a49261fe-9402-40b2-8860-682a094ceec1 ro rootflags=subvol=@ quiet splash acpi_osi= vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/30/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX302LG.207
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX302LG
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX302LG.207:bd10/30/2013:svnASUSTeKCOMPUTERINC.:pnUX302LG:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX302LG:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX302LG
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1.2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Sun Dec 14 17:44:52 2014
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                1507 
   vendor                                     BOE
  xserver.version: 2:1.16.0-1ubuntu1.2

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