Nvidia SHIELD TV 2015 / 2015 Pro / 2017 Pro (nvidia-foster)

From postmarketOS
Jump to navigation Jump to search
Nvidia SHIELD TV
200px
Nvidia SHIELD TV
Manufacturer Nvidia
Name SHIELD TV
Codename nvidia-foster
Released 2015
Category testing
Original software Android TV
Original version 5.1
Hardware
Chipset Nvidia Tegra X1 (T210)
CPU Quad-core 2.0 GHz Cortex-A57
GPU Tegra X1 (GM20B)
Display HDMI
Storage 16/500 GB
Memory 3 GB
Architecture aarch64
Type set-top box
This device has been tested with postmarketOS, but its device package has not yet been added to the postmarketOS repositories.
This means that it cannot be selected in pmbootstrap.
Features
USB Networking
Works
Flashing
Broken
Touchscreen
Unavailable
Display
Unavailable
WiFi
Works
FDE
Mainline
Works
Battery
Unavailable
3D Acceleration
Works
Audio
Works
Bluetooth
Works
Camera
Unavailable
GPS
Unavailable
Mobile data
Unavailable
SMS
Unavailable
Calls
Unavailable
USB OTG
NFC
Unavailable
Sensors
Accelerometer
Unavailable
Magnetometer
Unavailable
Ambient Light
Unavailable
Proximity
Unavailable
Hall Effect
Unavailable
Barometer
Unavailable
Power Sensor
Unavailable
Misc
Camera Flash
Unavailable
Keyboard
Unavailable
Touchpad
Unavailable
USB-A
Works
HDMI/DP
Works
Ir TX
Unavailable
Ir RX
Works
Stylus
Unavailable
Haptics
Unavailable
Ethernet
Works
FOSS bootloader
Partial
U-Boot
Primary Bootloader
Broken
Secondary Bootloader
Partial
Mainline
Works
Internal Storage
Broken
SD card
Works
USB Host
Broken
USB Peripheral
Broken
Display
Unavailable
Keyboard
Unavailable
Buttons


This page is for P2571 board based (foster) SHIELD TV variants.

Contributors

Users owning this device

  • Illen (Notes: 16 GB variant, runs mainline)


How to enter flash mode

Connect the device to host (using microUSB port), power it on and after 2 seconds hold the power button until bootloader menu shows up.

Installation

Booting mainline kernel

The vendor bootloader (CBoot) passes the device tree blob from DTB partition. Flashing this partition is proven to be unsafe, which makes it not feasible to boot non-vendor kernel. Fortunately U-Boot supports the P2571 board and it works good enough to be used as a secondary loader.

Mainline kernel status

Most of features are working except:

  • Hardware video decoding/encoding
  • Cooling fan (therefore I don't recommend overloading it too much).
  • Power off/suspend.
  • eMMC/SATA are disabled because there's no TegraPT support included in the fork.

GPU reclocking

You can put this GPU into higher power state for better performance (like older NVidia GPUs running with nouveau).

cat /sys/kernel/debug/dri/1/pstate
01: core 76 MHz AC DC *
02: core 153 MHz
03: core 230 MHz
04: core 307 MHz
05: core 384 MHz
06: core 460 MHz
07: core 537 MHz
08: core 614 MHz
09: core 691 MHz
0a: core 768 MHz
0b: core 844 MHz
0c: core 921 MHz
0d: core 998 MHz
DC: core 76 MHz

Seems like currently 0a state is the highest stable.

echo 0a > /sys/kernel/debug/dri/1/pstate

Lightbar

Mainline fork includes the Lightbar LED driver brought from vendor kernel.

This lightbar support 3 modes; normal (default), breathing and blinking

echo breathing > /sys/class/leds/nvidia:green:lightbar/effects

Or to just shut it off: echo 0 > /sys/class/leds/nvidia:green:lightbar/birghtness

Mainline U-Boot status

Can boot from SD cards, USB/eMMC doesn't work. Uses simple framebuffer for video output because there is no HDMI video out support for Tegra 210 in U-Boot.

See also