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Reason: Stub (Discuss in Talk:HP Spectre x360 15-ch025nd)

Hardware | PCI/USB ID | Working?
--- | --- | ---
GPU (Intel) | `8086:591b` | Yes
GPU (AMD) | `1002:694e` | Yes
Wireless | `8086:24fd` | Yes
Bluetooth | `8087:0a2b` | Yes
Audio | `8086:a171` | Partial
Webcam | `05c8:0815` | Untested
Touchpad | PS/2 | Yes
Touchscreen | `04F3:25BF` | Yes
Card Reader | `10ec:525a` | Yes
Accelerometer | `8086:a135` | Yes

This model was released in February 2016.

- Intel Core i7-8705G with Intel HD Graphics 630 (3.1 GHz, up to 4.1 GHz, 8 MB cache, 4 cores)
- 15.6" 4K (3840x2160) Ultra HD IPS WLED multitouch display
- 16 GB LPDDR3-1866 SDRAM
- 2 TB M.2 SDD
- 2 USB Type C Thunderbolt port, 1 USB 3.0 Type A ports, 1 HDMI port, 1 headphone/microphone jack
- 1 SD media card reader
- 802.11ac (2x2) and Bluetooth 4.0
- Bang & Olufsen quad speakers
- 6-cell, 64.5 Wh Li-ion battery
- Webcam
- Backlit keyboard

## Installation

Installing Arch was mostly without hiccup, you do need to disable Secure Boot (`F10` for UEFI options; `F9` for boot options). Dual boot was not tested. The laptop does not have a CD drive, so you have to use a USB stick. The UEFI also would not startup from the USB stick, but you can browse the USB, and choose the `loader.efi` to startup from.

## Audio

Only the front speakers work out of the box.

## Accelerometer

The accelerometer is not found by any userspace programs, iio-sensor-proxy gives the following output:

    G_MESSAGES_DEBUG=all /usr/sbin/iio-sensor-proxy

    ** (process:12472): DEBUG: 11:45:31.305: Could not find any supported sensors

The accelerometer is connected to a new Intel Integrated Sensor Hub which is not supported by the kernel yet, but can be manually bound to the `intel-ish-ipc` driver:

    $ lspci -nn | grep 8086:a135
    00:13.0 Non-VGA unclassified device [0000]: Intel Corporation Sunrise Point-H Integrated Sensor Hub [8086:a135] (rev 31)
    # modprobe intel-ish-ipc
    # echo "8086 a135" > /sys/bus/pci/drivers/intel_ish_ipc/new_id
    $ monitor-sensor
        Waiting for iio-sensor-proxy to appear
    +++ iio-sensor-proxy appeared
    === Has accelerometer (orientation: undefined)
    === No ambient light sensor
        Accelerometer orientation changed: normal

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- HP

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