Changing `GRUB_TERMINAL=console` based on https://medium.com/@leijerry888/get-grub-menu-back-after-installing- ubuntu-20-04-alongside-windows-dab5de5afc37 fixed the issue for me. However, this is still a bug.
Steps to reproduce: 1. Install Windows first. 2. Make some space on the disk for installing Ubuntu. 3. Install Ubuntu 20.04 4. On new boot, screen goes blank and boots directly to Ubuntu. Linux UBDESK 5.4.0-40-generic #44-Ubuntu SMP Tue Jun 23 00:01:04 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ubdesk description: Notebook product: 20BWS1KY0L (LENOVO_MT_20BW_BU_Think_FM_ThinkPad T450s) vendor: LENOVO version: ThinkPad T450s serial: XXXXXXXX width: 64 bits capabilities: smbios-2.7 dmi-2.7 smp vsyscall32 *-firmware description: BIOS vendor: LENOVO physical id: 31 version: JBET73WW (1.37 ) date: 08/14/2019 size: 128KiB capacity: 16MiB capabilities: pci pnp upgrade shadowing cdboot bootselect acpi usb biosbootspecification uefi -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1863434 Title: 20.04 grub menu not visible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1863434/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs