kernel-packages team mailing list archive

[LaMont Jones <lamont.jones@xxxxxxxxxxxxx>]

The kernel in #45:
1) exhibits the window shuffling issue.
2) if I lock the screen, and sit back for a few seconds, the display blanks, and then (almost immediately) unblanks.  I would expect it to remain blanked until there was mouse or keyboard activity.

I suspect that the next step is to instrument things to produce an audit
trail of what queries are hitting the driver about the display, and what
it's saying...   It's behaving like it only sees 1 display part of the
time, while both are actually present.

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https://bugs.launchpad.net/bugs/1543683

Title:
  Fails to detect (second) display

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released

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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