Comment 0 for bug 1263015

Install via LiveUSB created with unetbootin off the saucy amd64 iso was able to be completed with "nomodeset".

First boot into installed system resulted in lightdm "cowbell" being played but a backlight on / blank screen on the display.

using nomodeset on installed system results in framebuffer/console being usable - but no X able to start (cannot find screen).

tried some alternative kernel options : acpi_backlight=vendor, video=1920x1080-24@60

but with same results.

Tried using different kernel as per bug https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1195483

pinned and upgraded to trusty kernel images - slightly different result in that backlight goes down and breifly have a red screen tear in upper left of screen for several seconds before reverting to same behaviour as saucy kernel. (blanked screen, backlit, lightdm cowbell plays).

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.12.0-7-generic 3.12.0-7.15
ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4
Uname: Linux 3.12.0-7-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: lightdm 1473 F.... pulseaudio
 /dev/snd/controlC0: lightdm 1473 F.... pulseaudio
CRDA:
 country SG:
  (2402 - 2482 @ 40), (N/A, 20)
  (5170 - 5250 @ 40), (N/A, 20)
  (5250 - 5330 @ 40), (N/A, 20), DFS
  (5735 - 5835 @ 40), (N/A, 20)
Date: Fri Dec 20 21:17:10 2013
HibernationDevice: RESUME=UUID=808c568f-76fa-46d3-9e60-276860ebe1ec
InstallationDate: Installed on 2013-12-20 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
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 002: ID 8087:07dc Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. UX302LG
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-7-generic.efi.signed root=UUID=c4550a46-5cb3-4033-ac7f-3bc9d38959f8 ro
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-3.12.0-7-generic N/A
 linux-backports-modules-3.12.0-7-generic N/A
 linux-firmware 1.116
SourcePackage: linux
UpgradeStatus: Upgraded to saucy on 2013-12-20 (0 days ago)
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.