Sur un Dell XPS 15 9570 :

$ fwupdmgr get-devices
XPS 15 9570
  Guid:                 e4d7bdc4-cc95-4aa0-a982-5e915fc04bf0
  DeviceID:             UEFI-e4d7bdc4-cc95-4aa0-a982-5e915fc04bf0-dev0
  Provider:             UEFI
  Flags:                internal|allow-offline|require-ac
  Version:              0.1.1.4
  VersionLowest:        0.1.1.4
  Created:              2018-07-16
 
XPS 15 9570 TPM 2.0
  Guid:                 abe4e2d2-3fd5-5f0c-9613-7a04e8e048a2
  DeviceID:             DELL-abe4e2d2-3fd5-5f0c-9613-7a04e8e048a2lu
  Provider:             Dell
  Flags:                internal|allow-offline|require-ac
  Version:              7.2.0.1
  Created:              2018-07-16
 
XPS 15 9570 TPM 1.2
  Guid:                 dc235d59-cc75-5a40-b610-259160195a5f
  DeviceID:             DELL-dc235d59-cc75-5a40-b610-259160195a5flu
  Provider:             Dell
  Flags:                internal|require-ac|locked
  Created:              2018-07-16
 
Goodix Fingerprint Device 
  Guid:                 95e789cd-3709-547e-976a-f6918d0e2b99
  Guid:                 10b3a32e-e843-58f3-8f85-a890056ee5ce
  DeviceID:             usb:00:07
  Provider:             USB
  Flags:                none
  Version:              1.0
  Created:              2018-07-16
 
Integrated Webcam HD
  Guid:                 2a966ddb-9d18-534a-a97b-416130d19528
  Guid:                 1740e412-d2c4-5315-b331-a76b9c079141
  DeviceID:             usb:00:0c
  Provider:             USB
  Flags:                none
  Version:              129.49
  Created:              2018-07-16

Si on fait un “refresh” pour actualiser les informations et qu'on relance la commande, on a plus de choses. On voit plus d'information sur le firmware principal :

$ fwupdmgr refresh
 
$ fwupdmgr get-devices
XPS 15 9570
  Guid:                 e4d7bdc4-cc95-4aa0-a982-5e915fc04bf0
  UniqueID:             */*/lvfs/firmware/com.dell.uefie4d7bdc4.firmware/*
  DeviceID:             UEFI-e4d7bdc4-cc95-4aa0-a982-5e915fc04bf0-dev0
  Description:          <p>Updating the system firmware improves performance.</p>
  Provider:             UEFI
  Flags:                internal|allow-offline|require-ac|supported
  Version:              0.1.1.4
  VersionLowest:        0.1.1.4
  Created:              2018-07-16
  AppstreamId:          com.dell.uefie4d7bdc4.firmware
  Summary:              Firmware for the Dell XPS 15 9570/Precision 5530
  UpdateVersion:        0.1.2.2
  UpdateHash:           9fc4e4f43efc98b620c5a340e129b1bc2b753624
  UpdateChecksumKind:   sha1
  License:              proprietary
  UpdateUri:            https://fwupd.org/downloads/386cb4efa7ed75e0ca8133e9dec85b5750638b19-Precision 5530, XPS 9570 BIOS 1.2.2.cab
  UrlHomepage:          http://support.dell.com/
  Vendor:               Dell Inc.
  Trusted:              none
 
XPS 15 9570 TPM 2.0
  Guid:                 abe4e2d2-3fd5-5f0c-9613-7a04e8e048a2
  DeviceID:             DELL-abe4e2d2-3fd5-5f0c-9613-7a04e8e048a2lu
  Provider:             Dell
  Flags:                internal|allow-offline|require-ac
  Version:              7.2.0.1
  Created:              2018-07-16
 
XPS 15 9570 TPM 1.2
  Guid:                 dc235d59-cc75-5a40-b610-259160195a5f
  DeviceID:             DELL-dc235d59-cc75-5a40-b610-259160195a5flu
  Provider:             Dell
  Flags:                internal|require-ac|locked
  Created:              2018-07-16
 
Goodix Fingerprint Device 
  Guid:                 95e789cd-3709-547e-976a-f6918d0e2b99
  Guid:                 10b3a32e-e843-58f3-8f85-a890056ee5ce
  DeviceID:             usb:00:07
  Provider:             USB
  Flags:                none
  Version:              1.0
  Created:              2018-07-16
 
Integrated Webcam HD
  Guid:                 2a966ddb-9d18-534a-a97b-416130d19528
  Guid:                 1740e412-d2c4-5315-b331-a76b9c079141
  DeviceID:             usb:00:0c
  Provider:             USB
  Flags:                none
  Version:              129.49
  Created:              2018-07-16

Voir si il y a des mises à jours de firmwares possibles :

$ fwupdmgr get-updates
XPS 15 9570 has firmware updates:
ID:                      com.dell.uefie4d7bdc4.firmware
GUID:                    e4d7bdc4-cc95-4aa0-a982-5e915fc04bf0
Update Version:          0.1.2.2
Update Checksum:         9fc4e4f43efc98b620c5a340e129b1bc2b753624
Update Checksum Type:    sha1
Update Location:         https://fwupd.org/downloads/386cb4efa7ed75e0ca8133e9dec85b5750638b19-Precision 5530, XPS 9570 BIOS 1.2.2.cab

Il y a une mise à jour du firmware ( 0.1.1.4 ⇒ 0.1.2.2 ). Pour mettre à jour :

$ fwupdmgr update
Downloading 0.1.2.2 for XPS 15 9570...
Updating 0.1.2.2 on XPS 15 9570...
Decompressing…         
failed to obtain auth

Il faut se mettre en root ou utiliser sudo :

$ sudo fwupdmgr update
[sudo] Mot de passe de simon : 
Downloading 0.1.2.2 for XPS 15 9570...
Updating 0.1.2.2 on XPS 15 9570...
Decompressing…         
Retrying as an offline update...
Scheduling…   

• Fwupd (wiki.archlinux.org)