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

Boot From USB

• Turn on your computer and press Delete, F2, F10 or F11 (this varies by device) to enter the BIOS
• Use the cursor keys to find the ‘Boot’ menu or something similar
• Change the order so USB is at the top of the list as the number one boot priority

If none of those keys work to enter the BIOS, look out for a message on your monitor after pressing the computer’s power button. The message is usually at the bottom of the screen and says something like ‘Press F11 for boot options’

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

Ubuntu Kernel Downgrade

apt list --installed | grep linux-image
dpkg --list | grep linux-image
find /boot/vmli*

sudo apt remove linux-image-6.0.9-060009-generic linux-headers-6.0.9-060009-generic
sudo apt-mark hold linux-image-generic linux-headers-generic

Ubuntu Kernel Upgrade

# https://kernel.ubuntu.com/~kernel-ppa/mainline/v6.0.9/amd64/
# https://kernel.ubuntu.com/~kernel-ppa/mainline/v6.0/amd64/
sudo apt update && sudo apt full-upgrade -y
sudo dpkg -i *.deb

sudo apt install gcc make perl -y
sudo init 6
uname -mrs

sudo apt update && sudo apt full-upgrade -y
sudo apt install gcc make perl -y
sudo apt autoremove
sudo init 6
uname -mrs

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

Install Linux kernel 6.0 on Ubuntu 22.04 Ubuntu » Download » Linux Kernel 6.0.9 Ubuntu » Download » Linux Kernel 6.0.0 Ubuntu » Download » Linux Kernel 5.15 5 Bad Reasons to Update Linux Kernel BCDEdit Command-Line Options SSH Connection Hang Forever Calibrate the Laptop Battery Linux Kernel

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|   --|     |  |  |    -|    -|   __|
|_____|__|__|_____|__|__|__|__|_____|
@2013~2022                Chorke Inc.

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