Lenovo IdeaPad 720s

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The Lenovo IdeaPad 720s is a laptop computer with a 13.3" screen, 7th or 8th generation Intel Core i5/i7 processor, webcam, microphone, audio in/out, 802.11ac wireless card with bluetooth 4.1, 1 USB Type-C (DP & Power Delivery + Thunderbold), 1 x USB Type-C (Power Delivery + USB 3.0), 2 x USB3 ports and a fingerprint reader.

PCI Devices

  1. lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 08)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 9d13 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Device 9d4e (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Network controller: Intel Corporation Dual Band Wireless-AC 3165 Plus Bluetooth (rev 99)
02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961

USB Devices

# lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:0a2a Intel Corp. 
Bus 001 Device 003: ID 5986:210d Acer, Inc 
Bus 001 Device 002: ID 06cb:0081 Synaptics, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Hardware Support

The only hardware not supported is the fingerprint reader (see remarks for USB ID 06cb:0081 at Validity90 on GitHub).

UEFI Bios

Before installing, disable Secure Boot in BIOS. The BIOS can be accessed by pressing the NOVO button on the right hand side or by pressing F2 during boot.The boot menu can be accessed by pressing F12.

Battery Conservation Mode

Lenovo laptops come with a battery controller setting called "Battery Conservation Mode", which shifts the usual loading thresholds from 95/100% to 55/60% to reduce battery degradation. To enable this, install the acpi_call package. The mode is enabled with:

$ echo '\_SB.PCI0.LPCB.EC0.VPC0.SBMC 3' | sudo tee /proc/acpi/call

It can be disable with:

$ echo '\_SB.PCI0.LPCB.EC0.VPC0.SBMC 5' | sudo tee /proc/acpi/call