Public bug reported: I was evaluating the newly released Xubuntu 20.04.2 LTS by creating a LiveUSB from the ISO.
All I did was to connect to wifi and browse internet using Firefox. After two days of occasional usage, I found that wifi adapter has disappeared from NetworkManager (and output of iwconfig as well). Attached the relevant portions of dmesg output. Output of 'lsb_release -rd': -START- xubuntu@xubuntu:~$ lsb_release -rd Description: Ubuntu 20.04.2 LTS Release: 20.04 --END-- ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-modules-extra-5.8.0-41-generic 5.8.0-41.46~20.04.1 ProcVersionSignature: Ubuntu 5.8.0-41.46~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-41-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 CasperMD5CheckResult: pass CasperVersion: 1.445.1 CurrentDesktop: XFCE Date: Wed Feb 17 03:06:47 2021 LiveMediaBuild: Xubuntu 20.04.2 LTS "Focal Fossa" - Release amd64 (20210204) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash SourcePackage: linux-hwe-5.8 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: ubuntu Importance: Undecided Status: New ** Tags: amd64 apport-bug focal ** Attachment added: "Relevant portion of dmesg output showing FW error messages and stack trace from mwifiex_pcie" https://bugs.launchpad.net/bugs/1915893/+attachment/5464386/+files/relevant-portios-of-dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1915893 Title: Surface Book 2 - wifi adapter disappears after a couple of days To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1915893/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs