Is dell no longer supporting linux?

You should install linux Alongside Windows on a machine that shipped with windows.  Dell will not support any OS other than what shipped with the unit.  Nobody supports linux for free Dell, Redhat, Canonical, etc .  Dell does not support Linux on systems that did not ship with Linux installed by Dell.  Canonical calls it Ubuntu Advantage commercial support.

https://buy.ubuntu.com/

Ubuntu Advantage packages include Landscape, the Ubuntu systems management tool for security audit and compliance, and the Canonical Livepatch Service, which enables you to apply kernel fixes without restarting your Ubuntu systems.  $2,500  minimum applies which is 10 virtual machines per year and $150 per desktop minimum 50 workstations.

Dell Precision 5530 Mobile Workstation, developer edition

Read and contribute to the Sputnik forum. Check out project details at Dell TechCenter.

• Get information, videos and updates on To the Clouds and Beyond, a blog by Barton George, Project Sputnik founder

Key features:

• Ubuntu 18.04 LTS certified and preinstalled
• Available in Platinum Silver or Brushed Onyx, with a 15.6-inch display fit into a 14-inch chassis
• Next-gen graphics up to NVIDIA® Quadro P2000
• 8th Gen Intel® Core™ and next-generation Xeon® processors
• Enhanced 2666MHz memory speeds up to 32GB
• Up to 4TB of SSD storage
• USB Type C with x4 PCIe, Thunderbolt™ and HDMI 2.0 ports
• RHEL 7.5 certified
• Available worldwide

Dell calls it Pro Support.

https://www.dellemc.com/en-us/services/support-services/prosupport-enterprise-suite.htm

https://linux.dell.com/files/supportmatrix/Ubuntu_Support_Matrix.pdf

Redhat calls it an Enterprise Linux Subscription.

https://www.redhat.com/en/services/support

Dell also has never supported every joes crab shack distro under the sun.

Dell partners with Red Hat, SuSE and Canonical  so most support is based on these distributions.

Resources

Linux Support Matrix
Dell and SuSE
opensource.dell.com
Git repositories
Docker containers
Ansible playbooks
OpenManage yum repos
OpenManage apt repos
Dell System Update
XPS 13 Developer Edition
Whitepapers
Files and Projects
Mailing lists

I understand not providing technical support for alternative operating systems, but not providing update tools without additional charges based on your post, particularly when not clearly disclosed in the ordering process and listed as an OS on the XPS 13 9380 driver page, is irritating. Getting to the root of the issue, as the XPS 13 9380 does not ship with Ubuntu or any Linux distribution, Dell may provide only windows compatible update tools and/or claim the warranty is void. Replacing or imaging the hdd could be advisable so you can roll back if you need to. The Sandisk EVO 970 plus dropped in, and has good price/capacity/performance. the main bios .exe package, which includes some firmware updates, can be loaded directly by the bios if placed on a fat32 formatted thumb drive. This worked on my XPS 13 9380 for the 1.3.2 bios. The other options listed were suboptimal. UEFI capsule updates were not current and feel like a good way to brick yourself, and using a freedos bootable thumb drive didn’t work. It was not clear if the thunderbolt firmware update was included in the 1.3.2 bios package. Testing that will probably take using a usb bootable Win 10 thumb drive.

If you install Linux ALONGSIDE windows 10 there are no worrys about voiding warranty or support.

Linux support is available but its not free and it does not cover every distribution under the sun.  Dell partners with Redhat , Canonical, Suse

https://www.redhat.com/en/partners/dell

https://www.dell.com/learn/us/en/05/services/linux-suse

https://buy.ubuntu.com/

Miniumum order of $2500 applies.

• Ubuntu base OS
• Kernel
• Kubernetes
• OpenStack
• Docker
• SDN
• Storage

Hello, 

I totally agree with the question : is Dell no longer supports linux ?

We received very recently a XPS 9380 so called "developer edition" with Ubuntu 18.04 pre-installed and the 2 thunderbold ports do not work if they are not connected when you switch on the laptop. We contacted the "pro-service" support (since we are french lab buying all computers at dell store) but the only solution that they gave us was to do an update of the linux system...
We updated the firmware to last version 1.3.2 with the fwupd tools (we found this solution alone) but the issue of thunderbold ports remains.

We are now waiting for solution....

When tou bought a 1700 € laptop, I think that you can hope that at least the 3 ports will correctly work at the beginning (and not only one of them).

Sincerely, 

Pierre

There are BIOS Security Settings that may have to be set to "open wide here it comes" mode. (NO SECURITY)

Software based authorization of Thunderbolt™ 3 Ports
Thunderbolt™ 3 ports are controlled by bios and software and driver for windows provided by Intel,
that decides whether a device PCIe data path can connect to the system or not.

Thunderbolt is disabled (Secured) by default in bios unless the device logs into the machine aka windows driver.  Intel has added support for the different security levels to the kernel and starting with 4.13.  Redhat devs are working on new project called Bolt that aims to cleanly handle Thunderbolt security levels on Linux desktop.  No Idea what Canonical is doing.

Red Hat’s Christian Kellner details more about the Bolt project in a blog post, who explains:

“Bolt provides a D-Bus API to list devices, enroll them (authorize and store them in the local database) and forget them again (remove previously enrolled devices). It also emits signals if new devices are connected (or removed). During enrollment devices can be set to be automatically authorized as soon as they are connected.”

https://thunderbolttechnology.net/security/Thunderbolt%203%20and%20Security.pdf

Secure Boot and Thunderbolt security can be turned off but I do not recommend this.