kernel-packages team mailing list archive

[Peter Schüller <1300914@xxxxxxxxxxxxxxxxxx>]

Nick Demou: I tried with 3.13.0-32-generic, 3.13.0-44-generic,
3.13.0-45-generic, 3.13.0-46-generic

In 44 it does not work, not even once. The external VGA port never
becomes active.

All the others work with the described bug:
* the VGA port becomes mirrored during boot.
* When I unplug it and plug it in again it does not work anymore.
* [Workaround] If I log out of my session or restart lightdm the VGA port becomes active again, until the next plugout or shutdown of the screen.

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https://bugs.launchpad.net/bugs/1300914

Title:
  External screen undetected after first plug

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly.
  However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal.

  A way to get it back to work is to reboot or simply suspend the
  computer.

  Sorry but I have no idea of what package is handling that.

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