[Bug 425979] Re: Holding shift fails to display grub2 menu

[Lassi]

Related issue also observed here with 11.04 Natty (Kubuntu). Although
grub menu is not set as hidden, but is should display always, sometimes
only the background image is displayed (without menu entries), this
happens about 40-50% of the time.

However, if during the boot only the grub2 background is displayed,
pressing shift brings menu visible also, but *only* if shift-key is
pressed within some amount of time (the menu hidden timeout value).
Otherwise screen stays blank with the background image visible.

Observed on Lenovo T510. Upgraded from 10.10 to 11.04

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https://bugs.launchpad.net/bugs/425979

Title:
  Holding shift fails to display grub2 menu

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: grub2

  Grub2 has switched away from a minimum 1 second delay to hit enter, in
  preference to simply holding down shift during the boot sequence.
  However, this behaviour doesn't work on all machines.

  Further, many users will only learn this after their machine fails to
  boot normally, leaving them unable to boot at all without outside
  assistance.

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