[Bug 1749443] Re: ioctl FBIOPUT_VSCREENINFO: Invalid argument

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: fbset (Ubuntu)
       Status: New => Confirmed

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Title:
  ioctl FBIOPUT_VSCREENINFO: Invalid argument

Status in fbset package in Ubuntu:
  Confirmed

Bug description:
  $ fbset 768x576-75
  ioctl FBIOPUT_VSCREENINFO: Invalid argument

  And the same happens with all other modes
  defined in /etc/fb.modes

  The problem seems to be that KMS fbcon does
  not accept the pixclock parameter, which is
  the first parameter in a "timings" string.
  Changing it to 0 for all modes makes them to
  work, albeit w/o actual resizing. The image
  then just occupies the upper-left corner of
  the screen. But its still better than the
  complete failure.
  I suppose also other timing params are not
  supported. At least if you run fbset w/o
  parameters, it will display all timing params
  set to zero.
  So I think zeroing "timings" for all modes
  in /etc/fb.modes will help with KMS.

  Additionally, please add the 1920x1080 mode,
  its currently missing.

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