Grub freezes for a few seconds on every boot

[Clément]

My Toshiba Tecra W50A runs a dual boot Windows 10 / Linux Mint 18. This problem also existed when I dual-booted Windows 8.1 / Linux Mint 17.3.

Upon every boot, the grub menu is unresponsive for a few seconds before allowing input. That is, when the grub menu is displayed, pressing keys doesn't do anything until a few seconds later. This happens reliably on every boot.

1) System info: Linux Mint 18
   $ uname -a
   Linux clem-w50-mint 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

2) To reproduce: Boot the computer

3) What happened: Grub menu is shown, but pressing keyboard keys doesn't do anything until a few seconds later.

4) What you expected to happen instead: Keys should be immediately responsive after grub menu is shown.

5) Problem always happens.

What extra information can I provide? Here's my /etc/default/grub (it was not edited):

    $ cat /etc/default/grub
    # If you change this file, run 'update-grub' afterwards to update
    # /boot/grub/grub.cfg.
    # For full documentation of the options in this file, see:
    # info -f grub -n 'Simple configuration'

    GRUB_DEFAULT=0
    #GRUB_HIDDEN_TIMEOUT=0
    GRUB_HIDDEN_TIMEOUT_QUIET=true
    GRUB_TIMEOUT=10
    GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
    GRUB_CMDLINE_LINUX=""

[Valentin Krasontovitsch (v-krasontov)]

I am experiencing the exact same behavior, with dual boot windows 10 and ubuntu 16.04.1 LTS (installed from xubuntu image).

[Valentin Krasontovitsch (v-krasontov)]

.. and I'm running on a Toshiba Satellite Z30-B-10W.

$ uname -a
Linux val-lap-toshiba-xubuntu 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Angelo Russo (angelor885)]

Same behavior, dual boot windows 10 and ubuntu 16.04 LTS, Toshiba Tecra Z50-A-10D

[Lin, Kao-Yuan (mosdeo)]

Same behavior, dual boot windows 10 and ubuntu 16.04 LTS, Toshiba R30-A

[flopin (flopin)]

Same behavior, however I'm single booting KDE Neon (ubuntu 16.04) with grub set to be allways shown. If I keep the the default GRUB_HIDDEN_TIMEOUT, grub menu wont show, but it takes unusualy long before the boot starts. Toshiba Portege Z30t

[Rasmus Eneman (pie-or-paj)]

Same behavior when my USB hub is connected but if I have just the laptop it works fine

[TALAI Zoubir (zoubirzouba)]

I'm having this same problem??!!
uname -a
Linux zoubir-TECRA-Z40-B 5.4.0-48-generic #52-Ubuntu SMP Thu Sep 10 10:58:49 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

[Andrey G. (eappr)]

Same on Kubuntu 20.10 and Lenovo Legion 5 / AMD / nvidia + uefi + "secure boot support"=enabled. The system was installed in this config.

The issue was resolved by/after the following actions:
- setting admin password in uefi
- disabling "secure boot support"

The problem remains resolved after enabling "secure boot support" back.