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[smyrno <1471616@xxxxxxxxxxxxxxxxxx>]

Hi,
I successfully updated to the latest upstream kernel available today : 

~$ uname -a
Linux Henri1504 4.2.0-040200rc1-generic #201507051635 SMP Sun Jul 5 20:36:51 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

The bug is not fixed in this version : It worsened.
When Ubuntu is "cold started", the computer freezes when I start VLC to open a DVB stream. (it never did this with my previous kernel)
And on par with the previous kernel, when Ubuntu is booted after a restart from Windows, VLC is able to display DVB streams. (although it seems that it is less capable in decoding the stream.)

When I say "the computer freezes" I mean that mouse and keyboard do not respond.
Maybe I should try to run something in the background to see if it freezes too.

Thank you for helping me helping you helping everybody.

** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-4.2.0-040200rc1-generic

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https://bugs.launchpad.net/bugs/1471616

Title:
  DVB device initialisation issue

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hi, 
  I have a PCI card to receive DVB television on my desktop computer.
  The card works, but only if I restart the computer from Windows.

  I believe that Windows initializes something that does not get erased when the computer restarts, 
  and Ubuntu does not initialize this when it boots.
  This initialization gets erased when Ubuntu goes to sleep too.

  Please let me know any command that I could run to see differences
  between the card's configuration when it works and when it doesn't.

  Here is my lspci -vvnn for this device:
  0b:02.0 Multimedia controller [0480]: Philips Semiconductors SAA7146 [1131:7146] (rev 01)
  	Subsystem: KNC One Device [1894:0030]
  	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 64 (3750ns min, 9500ns max)
  	Interrupt: pin A routed to IRQ 17
  	Region 0: Memory at f7fffc00 (32-bit, non-prefetchable) [size=512]
  	Kernel driver in use: budget_av

  
  I saw on the KNC ONE website that they have a driver for the card. 
  I don't know if it fixes my issue. 
  But since the card works in some cases with a fresh install of Ubuntu without this driver, it seems that its a bug worth being fixed, right?

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-21-generic 3.19.0-21.21
  ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
  Uname: Linux 3.19.0-21-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  henri      1301 F.... pulseaudio
   /dev/snd/controlC1:  henri      1301 F.... pulseaudio
   /dev/snd/controlC2:  henri      1301 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Jul  6 00:35:45 2015
  HibernationDevice: RESUME=UUID=0ff68562-e49f-4f6e-8831-90afaecae135
  InstallationDate: Installed on 2015-04-27 (68 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-21-generic root=UUID=14ece072-f447-4ca7-a7a9-ce45c9bcd1e0 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-21-generic N/A
   linux-backports-modules-3.19.0-21-generic  N/A
   linux-firmware                             1.143.1
  RfKill:
   
  SourcePackage: linux
  UdevLog: Error: [Errno 2] Aucun fichier ou dossier de ce type: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/30/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1207
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P7P55D-E
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1207:bd07/30/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7P55D-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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