Upgraded the BIOS to the latest version available in the Acer web site (for Aspire 1810TZ the version is 1.3303). After upgrading the problem was gone!
Nice that Acer fixed the problem in their BIOS. But unfortunately I lost a lot of time with this, and got no help from the "community". -- ata2 exception EMask delays/prevents booting 9.04 & 8.10 https://bugs.launchpad.net/bugs/379831 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
