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[Bug 1500860] Re: 3.13.0-65 upgrade vs. usb serial adapter


To resolve your issue temporarily reboot, and at the "GNU GRUB" menu
select "Advanced options for Ubuntu" and then move down to select the
Ubuntu, with Linux 3.13.0-63-generic kernel option. (NOT the recovery
mode one) and it should boot into the old kernel and work fine again.

If you want to make the change permanent either you will have to modify the grub menu,
or remove the new kernel with:

sudo apt-get remove linux-image-3.13.0-65-generic

and reboot,
which will remove the new kernel and remove it from GRUB.

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  3.13.0-65 upgrade vs. usb serial adapter

Status in linux-lts-trusty package in Ubuntu:

Bug description:
    affects ubuntu

  Hi there,

  I'm using Kubuntu 14.04 32bit and 64bit on two different machines. Doing 
  embedded programming on a daily base, I'm using USB to serial adapters 
  based on the CP2102 IC. No problem so far. Today (September 29th) I 
  upgraded both computers from 3.13.0-63 to 3.13.0-65 as usual with this 
  command and passwd:

  sudo apt-get update && sudo apt-get upgrade -y && sudo apt-get 
  dist-upgrade -y

  After this and reboot, on both machines none of my several USB-serial 
  Adapters seem to work properly. I can receive with e.g. cutecom, but I 
  cannot send anymore. Any help will be apppreciated.

  Thanks Andreas

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