I manually installed firmware version 5.100.138 using the b43-fwcutter tool, and my throughput has returned to normal. I recommend that the b43 installer package default to this firmware for the BCM4306 (rev 03).
I still get the "swiotlb buffer" spamming my logs, but that might have been happening before. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1899848 Title: Broken WiFi Install on Ubuntu (MATE) 20.10 for BCM4306 (rev 03) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/b43-fwcutter/+bug/1899848/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
