I'm seeing what appears to be the same problem booting Eoan (kernel 5.3.0-18, Dell Precision 3510, wifi pci id 8086:24f3 ).
If I hide iwlwifi-8000C-36.ucode the system will boot normally with 8000C-34 and wifi seems to be working ok. The same laptop is dual booted with Bionic HWE 03 - no problems with 8000C-36 ** Attachment added: "journalctl -b | grep iwl output" https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1846264/+attachment/5297898/+files/iwlwifi.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1846264 Title: iwlwifi firmware version: 36.77d01142.0 crashing on association Status in linux-firmware package in Ubuntu: Incomplete Bug description: [ 942.984542] Hardware name: Dell Inc. XPS 13 9350/, BIOS 1.10.1 01/22/2019 Might be similar to LP: #1808389 ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-firmware 1.182 ProcVersionSignature: Ubuntu 5.3.0-13.14-generic 5.3.0 Uname: Linux 5.3.0-13-generic x86_64 ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Oct 1 16:47:11 2019 Dependencies: InstallationDate: Installed on 2019-09-23 (8 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190917) PackageArchitecture: all SourcePackage: linux-firmware UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1846264/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp