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[Bug 993268] Re: screen lock disables dual monitor


uMac, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

If reproducible, could you also please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:

where VERSION-NUMBER is the version number of the kernel you tested. For example:

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:

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

As well, please remove the tag:

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your

** Tags removed: dual monitors
** Tags added: bios-outdated-boe regression-potential

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

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  screen lock disables dual monitor

Status in “linux” package in Ubuntu:

Bug description:

  I installed 12.04 from cd so no upgrade this time but clean
  installation but I kept my old home patition with new installation.
  This is first time that I did not have to install nvidia propietary
  driver after installation or upgrade which is amazing and all my
  thumbs up for this. Also my dual monitor is perfectly autotedected at
  start up and working great out of the box. There is just one problem
  and it is when my creen os locked up due to my inactivity, when I
  unlock it I loose external monitor. I can open monitor settings and
  try to detect monitors but external monitor does not show up. What I
  have to do is to unplud externam monitor from laptop and plug back in.
  Then it automatically re-setup  dual screen as it dooes at start up.

  Just to mention my laptop is Macbook Pro 7.1.

  Thanks for great improvement regarding dual displays.

  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
   /dev/snd/controlC0:  stan       2251 F.... pulseaudio
   /dev/snd/controlC1:  stan       2251 F.... pulseaudio
   /dev/snd/pcmC1D0c:   stan       2251 F...m pulseaudio
   /dev/snd/pcmC1D0p:   stan       2251 F...m pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
   Card hw:0 'NVidia'/'HDA NVidia at 0xd3480000 irq 22'
     Mixer name	: 'Nvidia MCP89 HDMI'
     Components	: 'HDA:10134206,106b0d00,00100301 HDA:10de000c,10de0101,00100200'
     Controls      : 36
     Simple ctrls  : 12
   Card hw:1 'Headset'/'Logitech Logitech USB Headset at usb-0000:00:06.1-4.5, full speed'
     Mixer name	: 'USB Mixer'
     Components	: 'USB046d:0a0b'
     Controls      : 6
     Simple ctrls  : 2
  DistroRelease: Ubuntu 12.04
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=d77187e3-0081-4175-825f-7b8f80b3e87d
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Apple Inc. MacBookPro7,1
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=3195b0a1-6e2e-42fd-8541-3209016184d6 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
   linux-restricted-modules-3.2.0-24-generic N/A
   linux-backports-modules-3.2.0-24-generic  N/A
   linux-firmware                            1.79
  SourcePackage: linux
  Tags:  precise precise
  Uname: Linux 3.2.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 06/01/10
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP71.88Z.0039.B0B.1006012305
  dmi.board.name: Mac-F222BEC8
  dmi.board.vendor: Apple Inc.
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-F222BEC8
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP71.88Z.0039.B0B.1006012305:bd06/01/10:svnAppleInc.:pnMacBookPro7,1:pvr1.0:rvnAppleInc.:rnMac-F222BEC8:rvr:cvnAppleInc.:ct10:cvrMac-F222BEC8:
  dmi.product.name: MacBookPro7,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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