kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Jeremy Yoder, 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>

Also, could you 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:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc3

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:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

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
understanding.

** This bug is no longer a duplicate of bug 546578
   black screen after a few user switches

** Package changed: fast-user-switch-applet (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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

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https://bugs.launchpad.net/bugs/574909

Title:
  Getting a black/blank screen when switching between users in lucid

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: fast-user-switch-applet

  Not sure this is the right applet, but it seems to be affecting a
  number of people.

  1) Ubuntu 10.04 LTS (lucid)
  2) Unknown (I assumed fast-user-switch-applet, but I can't find a version number for it, so maybe this isn't part of Lucid?)
  3) Switching between 2 users repeatedly should work
  4) It fails after 1-3 switches with a black/blank screen

  Steps to repeat:
  - Boot ubuntu and login to user A
  - Then Click on power menu (top right corner) and select: Switch from A
  - I get the login screen
  - I select user B and enter my password
  - I hit ok
  - I am able to login successfully to user B
  - Now, I Click on power menu (top right corner) and select: Switch from B
  - I select user A from the login screen and enter my credentials, then hit OK
  - I get a black screen

  Alternatively:
  - Boot ubuntu and login to user A
  - Then Click on power menu (top right corner) and select: Switch from A... Select B
  - I get the login screen
  - I hit ok
  - I am able to login successfully to user B
  - Now, I Click on power menu (top right corner) and select: Switch from B... Select A
  - I get a black screen

  In my case, Ctrl+Alt+F1-6 is black as well.  The computer is NOT hung,
  I can type blindly and shut down fine.

  
  More details:
  http://ubuntuforums.org/showthread.php?t=1471915
  http://ubuntuforums.org/showthread.php?t=1467619

  Might be related to this bug reported against Jaunty?
  https://bugs.launchpad.net/ubuntu/+source/fast-user-switch-applet/+bug/354083

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