@vicamo I tested various combinations, here's the dmesg output: stock 5.3 kernel + iwlwifi backport: https://paste.ubuntu.com/p/j6WDwqDJcd/
mainline 5.4rc3: https://paste.ubuntu.com/p/VnY6vZvqnC/ mainline 5.4rc3 + backported iwlwifi (there was an error inthe install, see notes in log): https://paste.ubuntu.com/p/WwpmGmPdvh/ Unfortunately no luck - in all cases the firmware errors out immediately after loading. I noticed the 'trigger' is different with the backported iwlwifi. FWIW I've seen some old reports of people getting AX200 to work on ubuntu 19.04 using 'mainline kernels' from June/July this year, and also 19.10 some ppl using the chipset on 19.10 daily builds prior to launch - this is why I decided to upgrade SW + change wifi card. I also notice that the mainline iwlwifi module looks for firmware 50, then 49, and finally loads 48 which is the one that ubuntu ships. The one in the kernel tree is also 48, I wonder if intel keeps a "-next" tree of some sort somewhere where versions 49/50 could be present. I found these kernel bug reports: https://bugzilla.kernel.org/show_bug.cgi?id=205123 https://bugzilla.kernel.org/show_bug.cgi?id=204821 They both refer to the use of PCI slot adapters triggering the problem, which do not apply on my case. Motherboard: ASUS Maximus Gene Viii ** Bug watch added: Linux Kernel Bug Tracker #205123 https://bugzilla.kernel.org/show_bug.cgi?id=205123 ** Bug watch added: Linux Kernel Bug Tracker #204821 https://bugzilla.kernel.org/show_bug.cgi?id=204821 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848831 Title: Intel WiFi AX200 firmware loading error resulting in no wifi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1848831/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs