[Bug 1454764] Re: [ppc64el] video is inverted on console after "error: no suitable video mode found." message in GRUB

[Mathieu Trudel-Lapierre]

This is a backport of the patch from utopic: http://bazaar.launchpad.net
/~ubuntu-
branches/ubuntu/utopic/grub2/utopic/view/head:/debian/patches/ieee1275
-clear-reset.patch

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https://bugs.launchpad.net/bugs/1454764

Title:
  [ppc64el] video is inverted on console after "error: no suitable video
  mode found." message in GRUB

Status in grub2 package in Ubuntu:
  Fix Released
Status in grub2 source package in Trusty:
  In Progress

Bug description:
  [Impact]
  The video is inverted on console after "error: no suitable video mode found." message in GRUB; while booting some ppc64el systems.

  [Test case]
  - Boot, exit to grub command-line.
  - Issue the 'clear' command.

  EXPECTED BEHAVIOR: screen should be cleared.
  ACTUAL BEHAVIOR: screen has colors inverted.

  [Regression potential]
  This may affect other grub scripts that expect specific behavior after a 'clear' command; namely that the text attribute is intact. It will now be reset.

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