kernel-packages team mailing list archive

[Graeme <graeme@xxxxxxx>]

I'm seeing this issue on a fresh 14.04 install. However, unlike 13.10,
using "nomodeset" and the generic SVGA X drivers seem to work enough to
start the display at its native resolution.

As you can see, the Intel driver isn't being loaded at all on my
ux302lg:

# lshw -c video
  *-display UNCLAIMED     
       description: VGA compatible controller
       product: Haswell-ULT Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:f7400000-f77fffff memory:d0000000-dfffffff ioport:f000(size=64)

I'm going to attempt to install the intel-drm-next kernel, and will
report back once I've done so.

** Changed in: linux (Ubuntu)
       Status: Expired => Confirmed

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https://bugs.launchpad.net/bugs/1263015

Title:
  8086:0a16 [ASUS Zenbook UX302LG] Black screen on boot

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  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).

  WORKAROUND: Upstream drm-intel-next build resulted in working lightdm/screen:
  http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2013-12-18-trusty/

  --
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  lightdm    1466 F.... pulseaudio
   /dev/snd/controlC0:  lightdm    1466 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)
  DistroRelease: Ubuntu 13.10
  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
  Package: linux 3.11.0.15.16
  PackageArchitecture: amd64
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=c4550a46-5cb3-4033-ac7f-3bc9d38959f8 ro
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  Tags:  saucy package-from-proposed
  Uname: Linux 3.11.0-15-generic x86_64
  UpgradeStatus: Upgraded to saucy on 2013-12-20 (0 days ago)
  UserGroups:

  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.

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