Not a kernel issue after all. Problem was resolved by disabling Pulseaudio module-echo-cancel.
** Changed in: linux (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2028382 Title: Pulse Audio hangs with kernel 5.15.0-76 Status in linux package in Ubuntu: Invalid Bug description: When trying to play videos using Firefox, playback will stop for periods and then eventually Firefox will no longer be able to connect to pulseaudio. Kernel 5.15.0-75 works fine and does not hang. lsb_release -rd Description: Linux Mint 20.3 Release: 20.3 apt-cache policy linux-image-5.15.0-76-generic linux-image-5.15.0-76-generic: Installed: 5.15.0-76.83~20.04.1 Candidate: 5.15.0-76.83~20.04.1 Version table: *** 5.15.0-76.83~20.04.1 500 500 http://mirrors.ocf.berkeley.edu/ubuntu focal-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages 100 /var/lib/dpkg/status hwinfo Motherboard: Micro-Star International B450 TOMAHAWK (MS-7C02) CPU: Model: 23.24.1 "AMD Ryzen 5 3400G with Radeon Vega Graphics" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2028382/+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