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[Bug 1576102] Re: Dell Inc. Venue 8 Pro 5855 - kernel errors, hardware not supported


Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.6 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:

Once testing of the upstream kernel is complete, please mark this bug as

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc6-wily/

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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

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   Dell Inc. Venue 8 Pro 5855 - kernel errors, hardware not supported

Status in linux package in Ubuntu:

Bug description:
   Dell Inc. Venue 8 Pro 5855 is unit who is not full supported by Ubuntu 16.04 (Xenial Xerus)

  Kernel issues what found:

  [drm:intel_dsi_init [i915]] *ERROR* Failed to own gpio for panel control
  [drm:pwm_setup_backlight [i915]] *ERROR* Failed to own the pwm chip
  attached crtc is active, but connector isn't
  DPIO read pipe B reg 0x8080 == 0xffffffff
  Workqueue: events output_poll_execute [drm_kms_helper]
  [ENCODER:41] active 0 with crtc active 1
  pipe state doesn't match!

  Hardware not supported:


  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-21-generic 4.4.0-21.37
  ProcVersionSignature: hostname 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CasperVersion: 1.376
  Date: Thu Apr 28 08:41:15 2016
  LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  MachineType: Dell Inc. Venue 8 Pro 5855
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz.efi append noprompt boot=casper amd_iommu=on intel_iommu=on noeject nohibernate keyboard-configuration-layoutcode=pl console-setup/layoutcode=pl userfullname=Marcin username=marcin hostname=hostname nfsroot=usb showmounts persistent-path=/NFS/16.04/desktop-amd64 persistent iso-scan/filename=/NFS/16.04/ubuntu-16.04-desktop-amd64.iso
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/07/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.0
  dmi.board.name: 0HJFHN
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.2.0:bd12/07/2015:svnDellInc.:pnVenue8Pro5855:pvr:rvnDellInc.:rn0HJFHN:rvrA00:cvnDellInc.:ct8:cvr:
  dmi.product.name: Venue 8 Pro 5855
  dmi.sys.vendor: Dell Inc.

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