kernel-packages team mailing list archive

[LaMont Jones <lamont.jones@xxxxxxxxxxxxx>]

And I completely misstated myself.  :(

What I think I want is: 237ed86c with the current patch for this bug
applied.

Here is what I'm seeing, and trying to isolate it to these two patches,
or if it's something yet newer that we'll need to bisect all over again:

With current xenial (4.4.0-13 and -14), but not with the trunk prior to
237ed86c, when the OS stops sending video to the displays (in my case
after screen locks and there is still no keyboard/mouse activity), then
the windows get jumbled around in a manner that is consistent with X
deciding that it's single-headed again, and then back to double headed.

The kernel in #40 does not exhibit this behavior.  It would be
interesting to see if 237ed86c with the xenial fix does or does not.  If
it does, then this remains an open bug.  If it does not, then we have a
new bug, and a need to bisect again, with 4.4.0-13 (from the archive)
being the initial bad, and 237ed86c+fix as the first good.  Sadly, every
single kernel in that bisect will need to have the fix applied post-
bisect, so lets hope it's still this bug.  As of right now, initial good
is 237ed86c~1(with current fix -- I don't think I tested for this when
we were doing the initial bisect.)

Thanks

-- 
You received this bug notification because you are a member of Kernel
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:
  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

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543683/+subscriptions