This issue is no longer present in Ubuntu 22.04. Wile using Ubuntu 21.10, the following workarounds also remedied the issue: - Run a mainline 5.15.x kernel from https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D - Run the Jammy Jellyfish kernel from https://packages.ubuntu.com/jammy/linux-image-generic In both cases, it's necessary to install libssl3 from Jammy Jellyfish as well (see https://askubuntu.com/a/1389586/117513).
Ultimately, since Ubuntu 21.10 is rapidly approaching EoL, it makes sense to upgrade to Ubuntu 22.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1954843 Title: amdgpu_bl0: Failed to write system 'brightness' attribute: Invalid argument To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1954843/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
