kernel-packages team mailing list archive

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

Shentino, 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.

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

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

** Changed in: linux (Ubuntu)
     Assignee: Shentino (shentino) => (unassigned)

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https://bugs.launchpad.net/bugs/483301

Title:
  Can't disable fbcon

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: xorg

  I just found out that a dependency in fbcon is hard-coded in Xorg for
  whenever kernel mode switching is used.

  Attempting to manually hide fbcon.ko results in massive screen
  corruption.

  Version:  Karmic Koala
  Up to date as of:  Nov 15

  Expected outcome:

  Without fbcon, switching VTs should have dropped the screen back into
  text mode.  The kernel or whatever code handling the mode switch
  should have noticed that it needed to go into text mode, and actually
  done so.

  Actual outcome:

  Without fbcon, the screen got horrendously corrupted.  Almost as if
  the console was treating the video memory as if it was in text mode,
  but the screen was still in graphics mode.

  Why this is a bug:

  Text mode 80x25 is very useful for doing work on muds and the kernel
  development.  I use it extensively because it's fast and snappy.
  Making the console a framebuffer slows things WAY down.

  Switching between text and graphics modes shouldn't result in
  corruption.  Attempting to force-load fbcon is not only an apparent
  kludge, but it's also an improper forcing of system policy.

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