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[Bug 1393945] Re: gma500_gfx black LVDS if VGA connected


This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report[0]? That will allow the upstream Developers to examine the issue,
and may provide a quicker resolution to the bug.

Please follow the instructions on the wiki page[0]. The first step is to
email the appropriate mailing list. If no response is received, then a
bug may be opened on bugzilla.kernel.org.

Once this bug is reported upstream, please add the tag: 'kernel-bug-

[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel

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

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  gma500_gfx black LVDS if VGA connected

Status in “linux” package in Ubuntu:

Bug description:
  Asus 1015CX notebook
  Ubuntu 14.04 LTS 32 bit up-to-date

  If the notebook is powered on with an external VGA monitor, not video
  at LVDS. Only 800x600 output foer VGA.

  xrandr doesn't work. Impossible to turn on LVDS.

  If the notebook is powered on without external VGA monitor, LVDS is correctly configured at 1024x600. In this case, xrandr works. If an external VGA monitor is after connected it can be managed using xrandr. However, no video is showed at VGA monitor until xrandr is used.
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: i386
   /dev/snd/controlC0:  usuari     1653 F.... pulseaudio
   /dev/snd/seq:        timidity   1311 F.... timidity
  CRDA: Error: [Errno 2] El fitxer o directori no existeix
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=aef78d99-d548-43af-a863-69b6333fede0
  InstallationDate: Installed on 2014-08-20 (90 days ago)
  InstallationMedia: Lubuntu 14.04.1 LTS "Trusty Tahr" - Release i386 (20140722.2)
  MachineType: ASUSTeK COMPUTER INC. 1015CX
  Package: linux (not installed)
  ProcFB: 0 psbdrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic root=UUID=bda82093-d765-4a41-8866-aad74777e105 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-39.66-generic
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
   linux-restricted-modules-3.13.0-39-generic N/A
   linux-backports-modules-3.13.0-39-generic  N/A
   linux-firmware                             1.127.8
  Tags:  trusty
  Uname: Linux 3.13.0-39-generic i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  _MarkForUpload: True
  dmi.bios.date: 08/09/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1015CX.1101
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: 1015CX
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: x.xx
  dmi.chassis.asset.tag: 0x00000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: x.x
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1015CX.1101:bd08/09/2012:svnASUSTeKCOMPUTERINC.:pn1015CX:pvrx.x:rvnASUSTeKCOMPUTERINC.:rn1015CX:rvrx.xx:cvnASUSTeKCOMPUTERINC.:ct10:cvrx.x:
  dmi.product.name: 1015CX
  dmi.product.version: x.x
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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