Lenovo Legion 7i
| Hardware | PCI/USB ID | Working? |
|---|---|---|
| GPU (Intel) | Yes | |
| GPU (Nvidia) | Partial | |
| Backlight | Partial | |
| Ethernet | Yes | |
| Wireless | Yes | |
| Audio | Yes | |
| Webcam | 174f:2435 |
Yes |
| Bluetooth | Yes | |
| Thunderbolt | Yes | |
| Keyboard | Partial | |
| Touchpad | Yes |
For a general overview of laptop-related articles and recommendations, see Laptop.
BIOS
At bootup, the BIOS settings page is entered via the F2 key.
In the BIOS settings, the model name can be seen in the Main tab, Secure Boot can be disabled from the Security tab and boot mode can optionally be switched between UEFI and legacy.
Advanced BIOS options can be accessed by going into more settings, hold down Fn and press each key horizontally from q to p, a to l, then z to m, let go of Fn and press F10. Click save changes and reboot into BIOS. Advanced settings will now be available.
There is no known option to disable the discrete NVIDIA GPU using the BIOS, there may be one present after unlocking the advanced options.
NVME Detection
You must manually change storage type from RST to AHCI in BIOS settings for Linux to be able to detect the NVME drive.
Undervolt
Undervolting is possible. Enter advanced bios, go to overclocking section, and enable XTU settings. intel-undervolt can be used now.
Undervolting levels vary between chips, the 10875H has been known to be stable around -100mV for CPU, -25mV for GPU, and -100mV for CPU Cache.
Video
Backlight
Backlight does not work with default kernel parameters. This problem may be solved by adding i915.invert_brightness=1 to the list of kernel parameters.
$ ls /sys/class/backlight/
intel_backlight
if the above solution does NOT work then you can try this:
The only solution for now is to do it through the terminal using the following commands:
$ xrandr --verbose
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 eDP1 connected primary 1920x1080+0+0 (0x46) normal (normal left inverted right x axis y axis) 340mm x 190mm Identifier: 0x43 Timestamp: 214550 Subpixel: unknown Gamma: 1.0:1.0:1.0 Brightness: 0.80 Clones: CRTC: 0 CRTCs: 0 1 2 Transform: 1.000000
to get the display Identifier so that you can send the brightness adjustment command:
$ xrandr --output 0x43 --brightness 0.8
Where you can specify the brightness value between 1 and 0 using decimals(0.1, 0.2, 0.3, 0.5, 0.8, etc)
For example to place the brightness at 50% you can apply the following command:
$ xrandr --output 0x43 --brightness 0.5
Power Down Nvidia Card
Blacklist nouveau drivers, reboot, and run:
# echo 'auto' >> /sys/bus/pci/devices/0000:01:00.0/power/control
Multihead
External displays using the USB-C ports only seem to function using the proprietary NVIDIA driver.
Power Management
Battery conservation mode is available. It will charge the device to 60% when charge falls below 50%, extending the life of the battery. It can be activated by running the following command:
# echo 1 >/sys/bus/platform/drivers/ideapad_acpi/VPC2004:00/conservation_mode
Keyboard
Lights
Per-RGB keyboard lighting cannot be configured under Linux. openrgb-gitAUR & ckb-nextAUR do not work to control the keyboard lighting.
Touchpad
Single tap and double finger scrolling work. Multi gestures must be configured, they are detected with libinput-gesturesAUR.
Fan Control
Fan control only works with thinkfanAUR.
Troubleshooting
System hangs with BBSwitch
System hang occurs if bbswitch is used to shutdown the discrete Nvidia card. Do not use bbswitch, instead blacklist nouveau and use powertop or run:
# echo 'auto' >> /sys/bus/pci/devices/0000:01:00.0/power/control
Known Issues
Hinge Defects
Widespread issues with hinges breaking have been reported, especially the right side. There is no metal backing on the LCD side of the hinge, it is held in with glue causing it to become de-bonded over time. Extreme care is advised, warranty will not cover hinge issues.