@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 -- 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/1848831 Title: Intel WiFi AX200 firmware loading error resulting in no wifi Status in linux-firmware package in Ubuntu: New Bug description: Ubuntu 19.10 - stock kernel - Intel AX200 PCI card in a desktop PC uname -a Linux nahuatl 5.3.0-18-generic #19-Ubuntu SMP Tue Oct 8 20:14:06 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux The card is detected OK as dmesg shows, however the card's firmware fails immediately after loading (see dmesg output below) and wifi doesn't work at all. Big disappointment since the AX200 chip was supposed to be supported on 19.10. Ubuntu includes two ax200 firmware versions, version 48 loads by default in my system (and fails). I tried version 46 (by renaming the version 48 file) and it failed in the exact same manner $ ls /lib/firmware/iwlwifi-cc-* /lib/firmware/iwlwifi-cc-a0-46.ucode /lib/firmware/iwlwifi-cc-a0-48.ucode The card's Bluetooth functionality is also detected and it works fine. It's just the wifi FW loading what seems broken in ubuntu's 5.3 kernel. $ rfkill list 0: hci0: Bluetooth Soft blocked: yes Hard blocked: no ~$ dmesg | grep iwl [ 12.312443] iwlwifi 0000:01:00.0: enabling device (0000 -> 0002) [ 12.321098] iwlwifi 0000:01:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version: 43.2.23.17 [ 12.321101] iwlwifi 0000:01:00.0: Found debug destination: EXTERNAL_DRAM [ 12.321102] iwlwifi 0000:01:00.0: Found debug configuration: 0 [ 12.321309] iwlwifi 0000:01:00.0: loaded firmware version 48.4fa0041f.0 op_mode iwlmvm [ 12.390389] iwlwifi 0000:01:00.0: Detected Intel(R) Wi-Fi 6 AX200 160MHz, REV=0x340 [ 12.400654] iwlwifi 0000:01:00.0: Applying debug destination EXTERNAL_DRAM [ 12.400893] iwlwifi 0000:01:00.0: Allocated 0x00400000 bytes for firmware monitor. [ 13.414781] iwlwifi 0000:01:00.0: Collecting data: trigger 15 fired. [ 13.414908] iwlwifi 0000:01:00.0: Start IWL Error Log Dump: [ 13.414910] iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6 [ 13.414911] iwlwifi 0000:01:00.0: Loaded firmware version: 48.4fa0041f.0 [ 13.414912] iwlwifi 0000:01:00.0: 0x00000071 | NMI_INTERRUPT_UMAC_FATAL [ 13.414913] iwlwifi 0000:01:00.0: 0x002022F0 | trm_hw_status0 [ 13.414913] iwlwifi 0000:01:00.0: 0x00000000 | trm_hw_status1 [ 13.414914] iwlwifi 0000:01:00.0: 0x004F8E3C | branchlink2 [ 13.414915] iwlwifi 0000:01:00.0: 0x004E4FF4 | interruptlink1 [ 13.414915] iwlwifi 0000:01:00.0: 0x004E4FF4 | interruptlink2 [ 13.414916] iwlwifi 0000:01:00.0: 0x004F3DB0 | data1 [ 13.414917] iwlwifi 0000:01:00.0: 0x00001000 | data2 [ 13.414917] iwlwifi 0000:01:00.0: 0xF0000000 | data3 [ 13.414918] iwlwifi 0000:01:00.0: 0x00000000 | beacon time [ 13.414919] iwlwifi 0000:01:00.0: 0x0000795F | tsf low [ 13.414919] iwlwifi 0000:01:00.0: 0x00000000 | tsf hi [ 13.414920] iwlwifi 0000:01:00.0: 0x00000000 | time gp1 [ 13.414921] iwlwifi 0000:01:00.0: 0x0000DFD5 | time gp2 [ 13.414921] iwlwifi 0000:01:00.0: 0x00000001 | uCode revision type [ 13.414922] iwlwifi 0000:01:00.0: 0x00000030 | uCode version major [ 13.414923] iwlwifi 0000:01:00.0: 0x4FA0041F | uCode version minor [ 13.414923] iwlwifi 0000:01:00.0: 0x00000340 | hw version [ 13.414924] iwlwifi 0000:01:00.0: 0x18C89000 | board version [ 13.414925] iwlwifi 0000:01:00.0: 0x8002FF03 | hcmd [ 13.414925] iwlwifi 0000:01:00.0: 0x00020000 | isr0 [ 13.414926] iwlwifi 0000:01:00.0: 0x00000000 | isr1 [ 13.414926] iwlwifi 0000:01:00.0: 0x08F00002 | isr2 [ 13.414927] iwlwifi 0000:01:00.0: 0x00C0000C | isr3 [ 13.414928] iwlwifi 0000:01:00.0: 0x00000000 | isr4 [ 13.414928] iwlwifi 0000:01:00.0: 0x00000000 | last cmd Id [ 13.414929] iwlwifi 0000:01:00.0: 0x004F3DB0 | wait_event [ 13.414930] iwlwifi 0000:01:00.0: 0x00000000 | l2p_control [ 13.414930] iwlwifi 0000:01:00.0: 0x00000020 | l2p_duration [ 13.414931] iwlwifi 0000:01:00.0: 0x00000000 | l2p_mhvalid [ 13.414932] iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match [ 13.414932] iwlwifi 0000:01:00.0: 0x00000009 | lmpm_pmg_sel [ 13.414933] iwlwifi 0000:01:00.0: 0x00000000 | timestamp [ 13.414934] iwlwifi 0000:01:00.0: 0x0000F81C | flow_handler [ 13.414974] iwlwifi 0000:01:00.0: Start IWL Error Log Dump: [ 13.414975] iwlwifi 0000:01:00.0: Status: 0x00000000, count: 7 [ 13.414976] iwlwifi 0000:01:00.0: 0x201000A3 | ADVANCED_SYSASSERT [ 13.414976] iwlwifi 0000:01:00.0: 0x00000000 | umac branchlink1 [ 13.414977] iwlwifi 0000:01:00.0: 0xC008CC3C | umac branchlink2 [ 13.414978] iwlwifi 0000:01:00.0: 0xC0087660 | umac interruptlink1 [ 13.414978] iwlwifi 0000:01:00.0: 0x00000000 | umac interruptlink2 [ 13.414979] iwlwifi 0000:01:00.0: 0xDEADBEEF | umac data1 [ 13.414980] iwlwifi 0000:01:00.0: 0xDEADBEEF | umac data2 [ 13.414980] iwlwifi 0000:01:00.0: 0xDEADBEEF | umac data3 [ 13.414981] iwlwifi 0000:01:00.0: 0x00000030 | umac major [ 13.414981] iwlwifi 0000:01:00.0: 0x4FA0041F | umac minor [ 13.414982] iwlwifi 0000:01:00.0: 0x0000DFC9 | frame pointer [ 13.414983] iwlwifi 0000:01:00.0: 0xC0886C1C | stack pointer [ 13.414983] iwlwifi 0000:01:00.0: 0x0000FFFF | last host cmd [ 13.414984] iwlwifi 0000:01:00.0: 0x00000000 | isr status reg [ 13.414991] iwlwifi 0000:01:00.0: Fseq Registers: [ 13.414994] iwlwifi 0000:01:00.0: 0xE0000000 | FSEQ_ERROR_CODE [ 13.414998] iwlwifi 0000:01:00.0: 0x80290001 | FSEQ_TOP_INIT_VERSION [ 13.415002] iwlwifi 0000:01:00.0: 0x80050008 | FSEQ_CNVIO_INIT_VERSION [ 13.415006] iwlwifi 0000:01:00.0: 0x0000A503 | FSEQ_OTP_VERSION [ 13.415010] iwlwifi 0000:01:00.0: 0x80000003 | FSEQ_TOP_CONTENT_VERSION [ 13.415014] iwlwifi 0000:01:00.0: 0x4552414E | FSEQ_ALIVE_TOKEN [ 13.415018] iwlwifi 0000:01:00.0: 0x00100530 | FSEQ_CNVI_ID [ 13.415022] iwlwifi 0000:01:00.0: 0x00000532 | FSEQ_CNVR_ID [ 13.415025] iwlwifi 0000:01:00.0: 0x00100530 | CNVI_AUX_MISC_CHIP [ 13.415031] iwlwifi 0000:01:00.0: 0x00000532 | CNVR_AUX_MISC_CHIP [ 13.415037] iwlwifi 0000:01:00.0: 0x05B0905B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM [ 13.415043] iwlwifi 0000:01:00.0: 0x0000025B | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR [ 13.415069] iwlwifi 0000:01:00.0: SecBoot CPU1 Status: 0x6558, CPU2 Status: 0x3 [ 13.415070] iwlwifi 0000:01:00.0: Failed to start RT ucode: -110 [ 13.415071] iwlwifi 0000:01:00.0: Firmware not running - cannot dump error [ 13.426862] iwlwifi 0000:01:00.0: Failed to run INIT ucode: -110 ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-firmware 1.183 ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1 Uname: Linux 5.3.0-18-generic x86_64 ApportVersion: 2.20.11-0ubuntu8 Architecture: amd64 CurrentDesktop: GNOME Date: Sat Oct 19 00:25:44 2019 Dependencies: InstallationDate: Installed on 2018-08-01 (443 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) PackageArchitecture: all SourcePackage: linux-firmware UpgradeStatus: Upgraded to eoan on 2019-10-18 (1 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1848831/+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
