Thanks everyone. I didn't notice this problem just because I set total_mem=1024/2048/3072 before, this is problem was not exposed because the full 4G ram was not enabled.
And I will test the patches of #8 and SRU them if they works well. thx. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848790 Title: USB not working under arm64 on Pi4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1848790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
