You have been subscribed to a public bug: On July 24th I upgraded to the latest linux-headers-5.0.0-21 as part of the dist-upgrade for latest packages in Disco Dingo 19.04. I didn't notice that wifi was no longer working because at work I exclusively use a wired Ethernet connection.
Today, however, when I tried to use my realtek r8822be wireless card, I discovered that it was totally unresponsive and did not work with wpa_supplicant / wpa_cli even when invoked manually from the command line (let alone with NetworkManager). When the problem occurred, I was using 19.04's latest kernel 5.0.0-21. I then rebooted and selected kernel 5.0.0-20 from GRUB menu. "uname -a" shows that I am using the previous kernel version: Linux pj 5.0.0-20-generic #21-Ubuntu SMP Mon Jun 24 09:32:09 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux With this kernel version as well as linux-headers-5.0.0.20, linux- headers-5.0.0-20-generic, my realtek wireless card works fine. While booted into 5.0.0-20 kernel, here are the realtek kernel modules that are loaded: # lsmod | grep r8 r8822be 692224 0 mac80211 806912 1 r8822be cfg80211 671744 2 mac80211,r8822be r8169 81920 0 Hopefully this realtek wireless regression can get fixed in the next minor kernel version. Let me know if you need any more information. Best Regards, Jun ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: disco -- realtek r8822be kernel module fails after update to linux kernel-headers 5.0.0-21 https://bugs.launchpad.net/bugs/1838133 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- 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