[Bug 1854031] Re: reproducible shutdown on Xubuntu 19.10 live session

[Chris Guiver]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

Please execute the following command only once, as it will automatically
gather debugging information, in a terminal:

apport-collect 1854031

Please run it on your pen drive booted system.

When reporting bugs in the future please use apport by using 'ubuntu-
bug' and the name of the package affected. You can learn more about this
functionality at https://wiki.ubuntu.com/ReportingBugs.

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https://bugs.launchpad.net/bugs/1854031

Title:
  reproducible shutdown on Xubuntu 19.10 live session

Status in ubiquity package in Ubuntu:
  New

Bug description:
  use rufus to create a 10 GB persistence pen drive(San Disk Ultra Fit).

  then boot into it(don't press anything at selection menu), and open
  terminal.

  enter 'lspci' or 'sudo lspci' in terminal. wait a few minutes.

  screen goes black. then a few messages appear. then xubuntu shuts
  down.

  
  this was reproducible, so I tried it a few times to write down the messages. couldn't get a single entire message, so here's a few examples gathered that way.

  ```
  xorg[2551]: failed to idle channel 2 [Xorg[2551]]
  nouveau 0000:01:00.0: tmr: stalled at ffff
  ```

  ```
  xorg[2536]: failed to idle channel 2 [Xorg[2536]]
  nouveau 0000:01:00.0: tmr: stalled at ffff
  ```

  the system is 'MSI GL63 8RE 455IN', nothing exotic.

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