BIOS Menu

───────────────────────────────────────────────
Control + Alter + Delete   » Restart
Esc (Continuous Press)     » Until Boot Menu

cat /sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/conservation_mode
Result: 0 = disabled, 1= enabled

Repair UEFI Grub

# verify partitions
gparted

# mount ubuntu partition
sudo mount /dev/nvme0n1p4 /mnt
for i in /sys /proc /run /dev;\
do sudo mount --bind "$i" "/mnt$i"; done

# mount uefi partition
sudo mount /dev/nvme0n1p1 /mnt/boot/efi
sudo chroot /mnt

update-grub && grub-install /dev/nvme0n1
update-grub && exit
sudo reboot

Ubuntu Firmware Update

sudo fwupdmgr get-devices
sudo dmidecode -s bios-version

for d in system-manufacturer \
system-product-name bios-release-date bios-version;\
do echo "${d^} :$(sudo dmidecode -s $d)"; done

sudo fwupdmgr refresh
sudo fwupdmgr refresh --force

sudo fwupdmgr get-updates
sudo fwupdmgr update

sudo dmidecode -s bios-version

ThinkPad Fn Key

─────────────────────────────────────────────── Fn + 4  » Sleep mode

───────────────────────────────────────────────  »

References

• Upgrade To Latest Linux Kernel on Ubuntu 22.04
• Fedora 34 on Lenovo Legion 5 PRO 16ACH6H
• Ubuntu brightness control of Legion 5 pro
• Restore Grub Boot Loader from Windows
• Lenovo Legion 5 PRO 16ACH6H Support
• Battery charging stuck at 60%
• American Megatrends BIOS
• Ubuntu on the Legion 5 Pro
• Lenovo Legion 5Pro BIOS
• GRUB vs GRUB 2

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|   --|     |  |  |    -|    -|   __|
|_____|__|__|_____|__|__|__|__|_____|
@2013~2021                Chorke Inc.

${\begin{array}{lcr}\mathbf {CHORKE\ ACADEMIA\ INC} \\\mathbb {CHORKE\ ACADEMIA\ INC} \\{\mathsf {CHORKE\ ACADEMIA\ INC}}\\\end{array}}$