This seems to be a firmware issue with the HL-DT-ST GSA-T50N SATA DVD drive (firmware revision RR04).
Please see this linux-ide thread for reference: http://marc.info/?l=linux-ide&m=123036943617718&w=2 Hitachi LG does not offer firmware updates to end customers, only to manufacturers (http://www.hlds.co.jp/e_HLDS/faq.jsp). I tried to obtain a firmware upgrade from Asus but failed. Switching from "Enhanced" (AHCI) to "Compatible" in the BIOS fixes the problem but disables eSATA hotplugging. So this is not always a viable option. -- Asus M50VM-DVD doesn't mount and can not be ejected https://bugs.launchpad.net/bugs/289261 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
