I thought it might be worth to try the other versions of the FW. So I renamed the files like: sudo mv /lib/firmware/iwlwifi-8265-36.ucode /lib/firmware/DONOTLOAD-iwlwifi-8265-36.ucode
Eventually I ended up with: -rw-r--r-- 1 root root 1811984 Apr 24 2018 /lib/firmware/DONOTLOAD-iwlwifi-8265-22.ucode -rw-r--r-- 1 root root 2234528 Dez 5 2017 /lib/firmware/DONOTLOAD-iwlwifi-8265-27.ucode -rw-r--r-- 1 root root 2307104 Dez 6 2017 /lib/firmware/DONOTLOAD-iwlwifi-8265-31.ucode -rw-r--r-- 1 root root 2440780 Apr 25 2018 /lib/firmware/DONOTLOAD-iwlwifi-8265-34.ucode -rw-r--r-- 1 root root 2498044 Jan 11 10:03 /lib/firmware/DONOTLOAD-iwlwifi-8265-36.ucode -rw-r--r-- 1 root root 2389968 Nov 17 2017 /lib/firmware/iwlwifi-8265-21.ucode All versions >=22 Failed, no change in behavior at all. When running with only 21 left it failed to load at all, see the following dmesg. [ 5.651536] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-36.ucode failed with error -2 [ 5.651651] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-35.ucode failed with error -2 [ 5.652037] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-34.ucode failed with error -2 [ 5.652050] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-33.ucode failed with error -2 [ 5.652057] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-32.ucode failed with error -2 [ 5.652065] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-31.ucode failed with error -2 [ 5.652072] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-30.ucode failed with error -2 [ 5.652080] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-29.ucode failed with error -2 [ 5.652087] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-28.ucode failed with error -2 [ 5.652095] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-27.ucode failed with error -2 [ 5.652103] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-26.ucode failed with error -2 [ 5.652111] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-25.ucode failed with error -2 [ 5.652119] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-24.ucode failed with error -2 [ 5.652127] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-23.ucode failed with error -2 [ 5.652135] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8265-22.ucode failed with error -2 [ 5.652137] iwlwifi 0000:04:00.0: no suitable firmware found! [ 5.652140] iwlwifi 0000:04:00.0: minimum version required: iwlwifi-8265-22 [ 5.652142] iwlwifi 0000:04:00.0: maximum version supported: iwlwifi-8265-36 [ 5.652144] iwlwifi 0000:04:00.0: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git I thought, well then I run it without recent FW load, but then the wireless adapter doesn't initialize at all. No chance to configure it in cmdline or UI tools. Therefore it seems I know no way to get wireless to work at all on my T580 :-/ is there a Wireless dongle that works well with Linux? If there is anything I can try to resolve this please let me know. -- 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/1804841 Title: iwlwifi Microcode SW error detected. Restarting 0x2000000. Status in linux-firmware package in Ubuntu: Confirmed Bug description: This seems to be a return of an existing bug, in newer hardware and microcode versions. Wireless card: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78) Firmware version: 34.0.1 Description: Ubuntu 18.04.1 LTS Frequent errors as soon as I connect to wifi: Microcode SW error detected. Restarting 0x2000000. Expected to happen: Great and stable wifi like a couple of weeks ago What happens: very slow, intermittent internet access, lots of ping loss Found a suggestion of a workaround: adding these lines to /etc/NetworkManager/NetworkManager.conf [device] wifi.scan-rand-mac-address=no These lines were already there, not added by me. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-firmware 1.173.2 [modified: lib/firmware/iwlwifi-8265-36.ucode] ProcVersionSignature: Ubuntu 4.15.0-39.42-generic 4.15.18 Uname: Linux 4.15.0-39-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 Date: Fri Nov 23 15:23:54 2018 Dependencies: InstallationDate: Installed on 2018-09-03 (81 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) 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/1804841/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

