Updated the BIOS to 1.18 on my 4820T and I can confirm that it solves the issue.
-- Cannot detect AC adapter status and battery charge status on Acer Aspire 4820TG https://bugs.launchpad.net/bugs/578894 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
