I installed 5.7.0-5 from that link but it looks like the bcmwl module still fails to compile:
Building module: cleaning build area... make -j4 KERNELRELEASE=5.7.0-5-generic -C /lib/modules/5.7.0-5-generic/build M=/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build....(bad exit status: 2) ERROR (dkms apport): kernel package linux-headers-5.7.0-5-generic is not supported Error! Bad return status for module build on kernel: 5.7.0-5-generic (x86_64) Consult /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log for more information. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1808418 Title: Thinkpad T430u won't boot without noapic workaround To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1808418/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs