kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

There are over 400 changes to i915 between Ubuntu-4.3.0-7.18 and
Ubuntu-4.4.0-2.16.  We should probably narrow down the exact kernel
version that introduced this first.  At the same time, we can see if
this is Ubuntu specific, so testing the upstream kernels is best.

We need to identify the earliest kernel that did not exhibit the bug and
the first kernel that did exhibit the bug.

Can you test the following kernels and post back?

v4.4 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-wily/
If v4.4 final exhibits the bug, we should move on to testing some of the v4.4 release candidates. 

v4.4-rc4: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc4-wily/

If v4.4-rc4 does not exhibit the bug then test v4.4-rc6:
v4.4-rc6: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc6-wily/

If v4.4-rc4 does exhibit the bug then test v4.4-rc2:
v4.4-rc2: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc2-wily/

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1543683

Title:
  Fails to detect (second) display

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Confirmed

Bug description:
  With the upgrade to 4.4.0-2, only one of the two displays in the
  machine is detected.  With 4.3.0-7 (and earlier) both are detected.

  In this case, both display connectors are on the MB.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-extra-4.4.0-2-generic 4.4.0-2.16
  ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
  Uname: Linux 4.4.0-2-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  lamont     3923 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Feb  9 10:22:38 2016
  HibernationDevice: RESUME=UUID=5d145c55-633f-4197-a4c9-0b165b6dbeb3
  InstallationDate: Installed on 2014-09-22 (505 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: Shuttle Inc SG41
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-2-generic root=UUID=ba0ea95b-cde0-42ba-b06e-9fd6ca006881 ro nomdmonddf nomdmonisw
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-2-generic N/A
   linux-backports-modules-4.4.0-2-generic  N/A
   linux-firmware                           1.155
  RfKill:
   0: hci0: Bluetooth
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2014-11-14 (452 days ago)
  dmi.bios.date: 02/10/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 080015
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: FG41
  dmi.board.vendor: Shuttle Inc
  dmi.board.version: V20
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Shuttle Inc
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd02/10/2011:svnShuttleInc:pnSG41:pvrV20:rvnShuttleInc:rnFG41:rvrV20:cvnShuttleInc:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: SG41
  dmi.product.version: V20
  dmi.sys.vendor: Shuttle Inc

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