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HP Elite x2 1012 G2

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This article or section does not follow the Laptop page guidelines.

Reason: Missing an "Installation" section to mention Secure Boot, an "Accessibility", "Function keys" and possibly a "Firmware" section. (Discuss in Talk:HP Elite x2 1012 G2)
Hardware PCI/USB ID Working?
GPU 8086:5916 Yes
Audio 8086:9d71 Yes
Wi-Fi 8086:24fd Yes
Bluetooth 8087:0a2b Yes
Touchscreen 04f3:2334 Yes
Stylus / Pen 04f3:2334 Yes
Accelerometer I2C INT3472 Yes
Webcam(s) 8086:9d32 Yes
IR illuminator I2C INT3472:05 Yes
Fingerprint reader 138a:00ab Yes

The HP Elite x2 1012 G2 (Motherboard 82CA) is a 12.3" 2-in-1 detachable tablet PC powered by 7th generation Intel Core (Kaby Lake-Y / Kaby Lake-U) processors.

Hardware details and compatibility status are recorded in the Linux Hardware Database.

Accelerometer

See Tablet PC#Automatic rotation

Fingerprint reader

The fprint support is experimental.

Cameras

The HP Elite x2 incorporates three cameras connected via MIPI CSI-2 to an Intel IPU3 (CIO2) imaging processor and managed by a Texas Instruments TPS68470 PMIC:

Front RGB camera
OmniVision OV5670 (5 MP) on CSI-2 Port 1
Rear RGB camera
OmniVision OV8858 (8 MP) on CSI-2 Port 0
Near-Infrared (NIR) camera
OmniVision OV7251 (640x480) on CSI-2 Port 2
IR illuminator
TPS68470 WLED2 driven at 97.5 mA

Mainline kernels do not initialize all three sensors simultaneously due to Intel IPU3 single-DMA receiver limits and PMIC sequencing. A DKMS package and on-demand V4L2 bridge are provided in hp-elite-x2-1012-g2-cameras.

Driver installation

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Reason: This belongs in an AUR package. (Discuss in Talk:HP Elite x2 1012 G2)

Install dkms, v4l2loopback-dkms, v4l-utils in addition to the base-devel and git packages.

Clone the repository and run the automated installer: 

$ git clone https://github.com/ckomma/hp-elite-x2-1012-g2-cameras.git
$ cd hp-elite-x2-1012-g2-cameras
# ./install.sh

The installer performs the following:

  1. Installs hp-camera-unified to DKMS, ensuring automated module compilation on future kernel upgrades.
  2. Configures WirePlumber rules to isolate the loopback device, guaranteeing the front RGB camera defaults in desktop apps (Snapshot, Cheese, Zoom) while preserving rear camera toggling.
  3. Starts hp-ir-feeder.service, which listens via inotify to only power up the IR camera and WLED2 illuminator when an authentication request occurs.

Howdy

Howdy needs specific configuration: 

/etc/howdy/config.ini
[video]
device_path = /dev/video20
dark_threshold = 95
use_cnn = true

[debug]
end_report = false
Note Setting dark_threshold to 95 is essential. In dark rooms, background darkness causes frames to exceed Howdy's default 60% threshold, leading to false "Face detection image too dark" rejections.

Authentication operates in total darkness using the active TPS68470 WLED2 infrared emitter.

See also