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[Bug 1313981] Missing required logs.


This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1313981

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

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  Kernel disabling serial port ttyS0 on boot

Status in “linux” package in Ubuntu:

Bug description:
  On boot in 13.10 kern.log would state:

   Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled
   00:0a: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A

  and my serial modem would work just fine.

  After upgrading to 14.04 the kernel log contains:

   Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
   serial 00:0a: disabled

  How do I enable 00:0a?  Do I need to recompile the kernel with a
  different config?

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