Dell XPS 17 (9720) - ArchWiki

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# Dell XPS 17 (9720)

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

Reason: Missing function keys section, hardware table needs some adjustments, some sections need to be reordered (Discuss in Talk:Dell XPS 17 (9720))

This page applies to the Dell XPS 17 (9720) and the Precision 5770, that are the same hardware.

Hardware | PCI/USB ID | Working?
--- | --- | ---
GPU (Intel) | `8086:46a6` | Yes
GPU (NVIDIA) | `10de:25a2` | Yes
Wi-Fi | `8086:51f0` | Yes
Bluetooth |  | Yes
Audio | `8086:51c8` | Yes
Touchpad | `06CB:CE7E` | Yes
Webcam |  | Yes
Fingerprint sensor | `27c6:63ac` | Yes
SD Card Reader | `10ec:5260` | Yes

## Installation

Before installing it is necessary to modify some UEFI Settings. They can be accessed with `F2` when booting.

- Change the SATA Mode from the default "RAID" to "AHCI". This will allow Linux to detect the NVMe SSD.
- Disable Secure Boot. This may be re-enabled at a later point. See Secure Boot#Using a signed boot loader.

### Dual boot

Please note that changing from "RAID" to "AHCI" can break the default Windows installation and require a complete reinstall. Usually running windows own startup repair utility however fixes this issue in most cases. Another alternative is to follow this guide.

The reinstall can be done through the Dell recovery in the UEFI if needed.

Once you used the startup repair utility or have reinstalled, Windows should boot normally in AHCI mode and without error. Then one can proceed with typical dual boot setup.

## Thunderbolt

The following thunderbolt devices have been tested:

Device | Working? | Comments
--- | --- | ---
Dell WD22TB4 | Yes | –
Dell WD19DC | Yes | –

## Audio

Sound Open Firmware is required, and allows full functionality.

### Microphone

The laptop has several mic channels and the appropriate channel has to be unmuted before the mic will work. Open alsamixer, press `F6`, then in sof-soundwire:

- Select Playback (`F3`)
- Under Playback, select rt714 ADC 22 Mux and set it to DMIC1
- Select Capture (`F4`)
- Make sure PGA5.0 5 Master is unmuted and and the two rt714 FU02 channels are unmuted.

Make sure both the left and right microphones for the PGA5.0 channel (use keys `;` and `'`) are selected. Other than the above mentioned channels in Playback and Capture, none of the other channels appears to able to influence recorded audio.

## Touchpad sluggish/sticky

As in previous XPS 17 iterations, some users may find the touchpad is sluggish or sticky occasionally. Previous tracking bug https://gitlab.freedesktop.org/libinput/libinput/-/issues/618 but it is not root-caused yet.

Touchpad is significantly more stable in X than Wayland. X will rarely exhibit an issue where only the top left quadrant of the touchpad is usable, for a short amount of time (and is fixable by a reboot).

Using Wayland, if the lower 20% of the screen is exhibiting significant tearing during pointer travel in that area, add the kernel parameter `i915.enable_psr=0` to resolve this.

## Power Management

See Hibernation for kernel parameters & initramfs configuration.

S3 Sleep: Not supported. S0ix however works reasonably, losing ~ 0.5% per hour. "RAID" needs to be changed to "AHCI" for S0ix to work.

NVIDIA's open source driver does not support power management as of July 2022. Installing the proprietary driver is needed for NVIDIA Optimus. Once the proprietary driver is installed, no additional configuration is needed and it automatically turns the GPU off when not in use, reducing battery power usage by 7-12 watts per hour.

## Firmware

Dell provides firmware updates that can be installed automatically using fwupd (or one of its graphical frontends such as Gnome Software or KDE Discover). User reports not receiving UEFI and some other firmware updates this way when there were newer versions available for download.

Alternatively, firmware updates can also be installed from the UEFI directly by connecting to Wi-Fi, or even installed manually by downloading them from the support page and placing the .exe file on a FAT32 drive or the EFI system partition, then selecting the file in the "BIOS update" page after pressing `F12` at boot time.

It is possible to install custom Secure Boot root keys in the UEFI and use them for Secure Boot with Linux.

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