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Desktop system with 12.04 LTS 32-bit installed from USB, all updates applied. No other OS on system. Everything seems to work fine, but system will be used in a literacy center where anything unusual will cause students to be concerned. At Logout of any user, I very briefly get a black screen with white messages:

  Could not write bytes: Broken pipe
  * Checking battery state...

At shutdown, I briefly get the preceding messages, plus:

  acpid: exiting
  Checking for running unattended-upgrades:
                                       speech-dispatcher disabled: edit /etc/default/speech-dispatcher

I had to use a camera to capture these messages, as they are displayed for well under 1 second. There is no other symptom.

Following instructions in another post, I booted in GRU mode and repaired broken packages. It did not appear to me that anything was actually done and the symptoms did not change.

Three questions:

  1. Is something really wrong here?
  2. If not, how can I suppress the display of these messages so they don't trouble the students?
  3. Is there a log file somewhere that I could have found these messages in without using the camera?

I am new to UNIX, so I'll appreciate it if responses are detailed or include pointers to how-to information.

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