Lenovo Yoga 7 2-in-1 14AHP9

Hardware
PCI/USB ID
Working?
Touchscreen
Yes
Touchpad
Yes
GPU
1002:1900
Yes
Webcam
5986:2169
Yes
Bluetooth
0bda:5852
Yes
SD-card reader
17a0:9750
Yes
Audio
1022:15e3
Yes
Wi-Fi
10ec:c852
Yes
Fingerprint reader
1c7a:0583
Partial
Tablet mode switch
Yes
TPM (Pluton)
Untested
This laptop tablet is not to be confused with
Lenovo Yoga Pro 7 14AHP9
.
Accessibility
Before an operating system loads, the device provides several options for navigation.
In the firmware interface, use
Left/Right
arrows to switch between side menu and main view,
Up/Down
arrows to navigate within main menu,
F5/F6
to change values,
Enter
to select an option, and
Esc
to display exit menu.
Alternatively, use the touchscreen−it is always on while in the firmware interface. An on-screen keyboard is available when entering administrator password.
Press
F2
to enter the firmware interface, and
F12
to enter the boot menu.
The
Flip To Start
option may be enabled in the firmware interface in order to initiate boot by opening the lid.
While shutdown, connecting AC or pressing any button on the keyboard will display current battery charge.
Note
The firmware interface does not feature sound or haptic feedback.
Tip
A visual simulation of the very similar interface is available
at Lenovo
.
Firmware
fwupd
does not support this device yet, but is able to update platform's UEFI CA certificates. With great caution, a firmware update can be performed for this device, as described in
Flashing BIOS from Linux#Lenovo
.
Secure Boot
works with custom keys if Microsoft Corporation UEFI CA is also enrolled (e.g., using
sbctl
).
The device supports "BIOS self-healing", and stores a firmware backup image on
EFI system partition
; its size is about 6 MB. This image should not be signed when setting up Secure Boot.
Function keys
Key
Visible?
1
Marked?
2
Effect
Fn+Esc
No
Yes
Toggles Fn lock
Fn+F1
Yes
Yes
XF86AudioMute
Fn+F2
Yes
Yes
XF86AudioLowerVolume
Fn+F3
Yes
Yes
XF86AudioRaiseVolume
Fn+F4
Yes
Yes
XF86AudioMicMute
Fn+F5
Yes
Yes
XF86MonBrightnessDown
Fn+F6
Yes
Yes
XF86MonBrightnessUp
Fn+F7
Yes
Yes
Super+p
Fn+F8
Yes
Yes
XF86RFKill
Fn+F9
Yes
Yes
Super+i
Fn+F10
Yes
Yes
Super+l
Fn+F11
Yes
Yes
Ctrl+Alt+Tab
Fn+F12
Yes
Yes
XF86Calculator
Fn+Ins
Yes
Yes
XF86Favorites
Fn+PrintScreen/t/s
Yes
Yes
PrintScreen
Fn+Del
Yes
Yes
Del
Fn+i
Yes
Yes
Ins
Fn+p
Yes
Yes
Pause
Fn+k
Yes
Yes
Scroll_Lock
Fn+b
Yes
Yes
Break
Fn+n
Yes
Yes
XF86RootMenu
Fn+m
Yes
Yes
XF86TouchpadToggle
Fn+Space
Yes
Yes
NoSymbol
3
Fn+Copilot
No
Yes
See note
4
Fn+Up
Yes
Yes
PageUp
(Next)
Fn+Down
Yes
Yes
PageDown
(Prior)
Fn+Left
Yes
Yes
Home
Fn+Right
Yes
Yes
End
The key is visible to
xev
and similar tools.
The physical key has a symbol on it, which describes its function.
This firmware-managed key cycles between keyboard backlight modes.
To remap this key, follow the steps described in
Keyboard input#Identifying scancodes
and
Map scancodes to keycodes#Using setkeycodes
.
Power management
Enabling battery conservation mode as described in
Lenovo#Battery conservation mode
will limit the maximum charge to 80%.
TLP
also supports this method using options described on the
vendors page
.
Disabling redundant WMI drivers
Some kernel modules targeted at Lenovo devices are not used by this ultrabook, such as
lenovo-wmi-hotkey-utilities
and
lenovo_wmi_gamezone
. If these modules fail to load during boot, you can safely
blacklist
them.
Fingerprint reader
The supplied fingerprint reader enforces the
Secure Device Connection Protocol
, and refuses to store fingerprints if the protocol is not followed. Currently, SDCP is not supported by
Fprint
, but  enrolling and storing fingerprints is possible using the
custom script
.
You will need to
install
python
,
python-docopt
,
python-pyusb
, and
python-cryptography
. Installing Fprint is not required for this operation.
Save the script as
egismoc-sdcp-1c7a-0583.py
and comment out lines 500-502 (inclusive):
./egismoc-sdcp-1c7a-0583.py
reconnect_response_raw = egismoc_sdcp_reconnect()
print(f"egismoc SDCP ReconnectResponse: {reconnect_response_raw.tobytes().hex(' ')}")
verify_sdcp_reconnect_response(keys, reconnect_response_raw)
Make the following additional changes to lines 48 and 58, respectively:
./egismoc-sdcp-1c7a-0583.py
dev = usb.core.find(idVendor=0x1c7a, idProduct=0x0583)
...
NUM_ENROLL_STAGES = 20
After making these changes, it should be possible to enroll fingerprints.
# python ./egismoc-sdcp-1c7a-0583.py enroll
# python ./egismoc-sdcp-1c7a-0583.py verify
See also
Hardware probes
General (Linux Hardware)
Decoded acpi tables (Linux Hardware)
Simple tests (Linux Hardware)
Specifications (Lenovo)
Product home (Lenovo)