Hi @kaihengfeng thank you very much for commenting, much appreciated. Yes, linux-modules-extra is installed:
$ uname -r 5.8.0-36-generic $ sudo apt install linux-modules-extra-5.8.0-36-generic [sudo] password for hazrpg: Reading package lists... Done Building dependency tree Reading state information... Done linux-modules-extra-5.8.0-36-generic is already the newest version (5.8.0-36.40~20.04.1). linux-modules-extra-5.8.0-36-generic set to manually installed. The following packages were automatically installed and are no longer required: libllvm10 libllvm10:i386 libomxil-bellagio-bin libomxil-bellagio0 libwayland-server0:i386 linux-headers-5.4.0-62 linux-headers-5.4.0-62-generic Use 'sudo apt autoremove' to remove them. 0 to upgrade, 0 to newly install, 0 to remove and 1 not to upgrade. I've also tried installing it for all the others: $ sudo apt install linux-modules-extra-5.8.0-40-generic linux-modules-extra-5.8.0-38-generic linux-modules-extra-5.8.0-36-generic Reading package lists... Done Building dependency tree Reading state information... Done linux-modules-extra-5.8.0-36-generic is already the newest version (5.8.0-36.40~20.04.1). linux-modules-extra-5.8.0-38-generic is already the newest version (5.8.0-38.43~20.04.1). linux-modules-extra-5.8.0-38-generic set to manually installed. linux-modules-extra-5.8.0-40-generic is already the newest version (5.8.0-40.45~20.04.1). linux-modules-extra-5.8.0-40-generic set to manually installed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1912773 Title: [MS-7C52, ATI R6xx HDMI, Digital Out, HDMI] No sound at all, second display not working, cpu/agpu performance dropped considerably To manage notifications about this bug go to: https://bugs.launchpad.net/amd/+bug/1912773/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
