Lenovo IdeaPad 5 14are05

This article or section does not follow the
Laptop page guidelines
.
Reason:
Needs a hardware table and an accessibility, firmware and function keys section (Discuss in
Talk:Lenovo IdeaPad 5 14are05
)
The IdeaPad 5 14are05 is a 14-inch Lenovo AMD Renoir (Ryzen 4000)-based laptop.
Hardware Support
BIOS
BIOS can be accessed by pressing
F2
at the Splash screen. The 15-inch model has BIOS updates that are compatible with DOS, so its BIOS can be flashed without Windows (see
Flashing BIOS from Linux#FreeDOS
). Unfortunately, the update files for this model require Windows. In theory, Windows can be installed on a USB drive through
woeusb
AUR
.
Microphone
The internal microphone is properly recognized and working for
linux
>=5.8rc3 as long as the
snd-acp3x-rn
kernel module is loaded.
If the internal microphone is no longer recognized on
linux
>=5.10, you may need to add the following to the kernel parameters:
snd_rn_pci_acp3x.dmic_acpi_check=1
Touchpad
The touchpad works almost as expected starting from
linux
5.9-rc1. It is still random whether it will work or not after going out of suspend mode, but in that case it is an easy fix: just add a keyboard shortcut for the touchpad toggle and you should be able to make it work again.
While there is no explicit option to disable the touchpad in the BIOS, some option combinations in the BIOS can make the touchpad inaccessible. Thus, if you are running on
linux
5.9 or newer and you still have issues with this module, try checking your BIOS settings first.
Display
The brightness works for
linux
>=5.7.6.1, since the patch to fix brightness has been merged. The xbacklight utility provided with
xorg-xbacklight
only works with Intel drivers, but you can use its replacement from
acpilight
AUR
to increase and decrease brightness levels. Since the latter requires different permissions for the files in
/sys/class/backlight/
to control the backlight brightness levels, you should set up a file in
/etc/udev/rules.d/90-backlight.rules
containing:
SUBSYSTEM=="backlight", ACTION=="add", \
  RUN+="/usr/bin/chgrp video /sys/class/backlight/
amdgpu_bl0
/brightness", \
  RUN+="/usr/bin/chmod g+w /sys/class/backlight/
amdgpu_bl0
/brightness"
You would also need to add your users to the
video
group.
Since backlight improvements in
linux
6.1, you no longer have to add any kernel parameters such as
acpi_backlight=vendor
to the
boot loader
—in fact, according to Hans de Goede, the former "never was the right thing to do, it just happened to work" and the correct kernel parameter should have been
acpi_backlight=native
anyway.
Suspend
See
Power management/Suspend and hibernate#Changing suspend method
for the general context in which this workaround applies.
Enabling S3 sleep
Turn off OneKeyBattery mode in BIOS setup, if it is enabled, and save the BIOS settings.
Power down the laptop.
Type, with the laptop powered off:
F1
1
Q
A
Z
F2
2
W
S
X
F3
3
E
D
C
F4
4
R
F
V
F5
5
T
G
B
F6
6
Y
H
N
.
If you notice the pattern, it is just going down the column from
F1
to the letter in the last keyboard row, from
F1
to
F6
. (You may need to replace some keys accordingly if you got a QWERTZ layout or similar alternative layouts).
Boot the laptop with
F2
pressed to get into BIOS as usual, you will get into the BIOS but with a few options more unlocked.
You will be able to then find a "S3/Modern Standby Support" setting in one of the newer menus that appear and toggle it to S3 instead of Modern Standby.
Do not touch any other setting here unless you know what you are doing
.
ACPI patching
This article or section needs language, wiki syntax or style improvements. See
Help:Style
for reference.
Reason:
Duplicates
DSDT
. (Discuss in
Talk:Lenovo IdeaPad 5 14are05
)
Get acpidump and iasl, provided by the
acpica
package.
Dump all your ACPI files into a directory:
$ mkdir ~/acpi/
$ cd ~/acpi/
# acpidump -b
Decompile the DSDT table
$ iasl -e *.dat -d dsdt.dat
Patch the decompiled DSDT table (dsdt.dsl). Use
this patch
for Linux <= 5.10 and
this patch
for Linux 5.14.
$ patch -p1 < dsdt.patch
Compile the modified DSDT table
$ iasl -ve -tc dsdt.dsl
Make a
cpio
archive
$ mkdir -p kernel/firmware/acpi
$ cp dsdt.aml kernel/firmware/acpi
$ find kernel | cpio -H newc --create > acpi_override
Copy created cpio file to boot:
# cp acpi_override /boot
Reboot
Power management
This article or section is a candidate for merging with
Laptop/Lenovo#Lenovo
.
Notes:
This is shared across multiple models and should be put on the generic page instead of duplicated for every model. (Discuss in
Talk:Lenovo IdeaPad 5 14are05
)
To toggle the System Performance or the Battery Conservation/Rapid Charge mode, you would need to call some ACPI methods.
First install
acpi_call
(or
acpi_call-lts
for LTS kernel,
acpi_call-dkms
for other
kernels
) and load the
kernel module
:
# modprobe acpi_call
You can also use
ideapad-perf
to control both the System Performance and the Battery Conservation mode through the CLI or with the provided tray applet.
System Performance Mode
There are 3 modes available:
Intelligent Cooling
,
Extreme Performance
and
Battery Saving
.
Set it to
Intelligent Cooling
mode:
# echo '\_SB.PCI0.LPC0.EC0.VPC0.DYTC 0x000FB001' > /proc/acpi/call
Set it to
Extreme Performance
mode:
# echo '\_SB.PCI0.LPC0.EC0.VPC0.DYTC 0x0012B001' > /proc/acpi/call
Set it to
Battery Saving
mode:
# echo '\_SB.PCI0.LPC0.EC0.VPC0.DYTC 0x0013B001' > /proc/acpi/call
To verify your setting:
# echo '\_SB.PCI0.LPC0.EC0.STMD' > /proc/acpi/call
# cat /proc/acpi/call; printf '\n'
As a result you get the value for the bit STMD (either
0x0
or
0x1
).
# echo '\_SB.PCI0.LPC0.EC0.QTMD' > /proc/acpi/call
# cat /proc/acpi/call; printf '\n'
As a result you get the value for the bit QTMD (either
0x0
or
0x1
).
To interpret the results the following table can be used:
STMD
QTMD
Mode
0x0
0x0
Extreme Performance
0x0
0x1
Battery Saving
0x1
0x0
Intelligent Cooling
Rapid Charge
The Rapid Charge technology allows you to charge 80% of the battery capacity in around 30 minutes (depending on laptop model and battery). According to Lenovo, their batteries are charged at a higher rate with high current rather than high voltage, which they claim increases battery life.
Turn on:
# echo '\_SB.PCI0.LPC0.EC0.VPC0.SBMC 0x07' > /proc/acpi/call
Turn off:
# echo '\_SB.PCI0.LPC0.EC0.VPC0.SBMC 0x08' > /proc/acpi/call
To verify your setting:
# echo '\_SB.PCI0.LPC0.EC0.FCGM' > /proc/acpi/call
# cat /proc/acpi/call; printf '\n'
where
0x0
stands for
off
and
0x1
stands for
on
.
Also see the
note
Battery Conservation
Battery Conservation Mode is a feature that limits battery charging to 55-60% of its capacity to improve battery life, being most useful when the laptop tends to run on external power much of the time.
Turn on:
# echo '\_SB.PCI0.LPC0.EC0.VPC0.SBMC 0x03' > /proc/acpi/call
Turn off:
# echo '\_SB.PCI0.LPC0.EC0.VPC0.SBMC 0x05' > /proc/acpi/call
To verify your setting:
# echo '\_SB.PCI0.LPC0.EC0.BTSG' > /proc/acpi/call
# cat /proc/acpi/call; printf '\n'
where
0x0
stands for
off
and
0x1
stands for
on
.
There is also an
alternative
way to control the conservation mode of the battery.
Note
It is worth noting that the Lenovo Vantage software for Windows when turning on Battery Conservation mode also turns off
#Rapid Charge
(if it was on). The same is also valid for the
#Rapid Charge
: turning it on will bring the battery conservation mode down. The aforementioned acpi calls (
#Rapid Charge
and
#Battery Conservation
) will not do this for you. So it is possible to get the state where both battery conservation and rapid charge modes are active. You generally do not want this, as Rapid Charging puts more strain on the battery than regular charging, defeating the purpose of Battery Conservation Mode. The
ideapad-perf
script will prevent you from doing this.