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LG V20 (lg-us996)

From postmarketOS Wiki
LG V20
File:LG_V20_with_Mate.jpg
Manufacturer LG
Name V20
Codename lg-us996
Released 2016
Type handset
Hardware
Chipset Qualcomm Snapdragon 820 (MSM8996)
CPU 2x 2.15 GHz Kryo
2x 1.6 GHz Kryo
GPU Adreno 530
Display 1440x2560
Storage 64 GB
Memory 4 GB
Architecture aarch64
Software
Original software
The software and version the device was shipped with.
Android 7.0
Extended version
The most recent supported version from the manufacturer.
Android
postmarketOS
Category downstream
Mainline
Instead of a Linux kernel fork, it is possible to run (Close to) Mainline.
no
Device package device-lg-us996
Kernel package linux-lg-us996
Features
Flashing
It is possible to flash the device with pmbootstrap flasher.
Works
USB Networking
After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system).
Untested
Battery
Charging and battery level reporting works
Untested
Screen
Display works. Ideally with sleep mode and brightness control.
Works
Touchscreen
Works
Multimedia
3D Acceleration
Untested
Audio
Audio playback, microphone, headset and buttons.
Broken
Camera
Untested
Connectivity
WiFi
Untested
Bluetooth
Untested
GPS
Untested
Modem
Calls
Untested
SMS
Untested
Mobile data
Untested
Miscellaneous
FDE
Full disk encryption and unlocking with unl0kr.
Untested
USB OTG
USB On-The-Go or USB-C Role switching
Untested
Sensors
Accelerometer
Auto screen rotation works in desktops e.g. Phosh or Plasma Mobile
Untested


The codename for the LG V20 is "elsa", but LG only provides bootloader unlocking support for the us996 variant (sold by US Cellular).

Maintainer(s)

Uclydde

Users owning this device


Display Cutout

Unlike most smartphones with display cutouts (aka "the notch"), the LG V20's touchscreen does not register input underneath it. Until there is better support for display cutouts, it may be a good idea to simply not use that row of the display. This could possibly be done by changing the screen dimensions, and panning. See this LineageOS commit disabling the section of the screen next to the cutout

Mainline Kernel

The SoC, msm8996, has support in the mainline kernel. Since this phone has a removable battery and a decent amount of ram & storage, this phone could be usable in the long-term, making it a prime candidate for mainlining.

Obstacles:

  • The display panel, made by LG, uses display stream compression, or DSC. While the mainline kernel does support DSC *for the sdm845 SoC*, it does not support it yet for the msm8996 (as of 12/28/2021). Additionally, the simple framebuffer approach cannot be used for display output, because the panel is command-mode - not video-mode, and the bootloader disables autorefresh.

See also