OK. Yes, if you are able, try the SATA/PATA combination test. Looking through your dmesg above it appears that you are an ideal candidate as you appear to have both SATA & PATA and an Intel ICH6 chipset.
I have suspected for some time that several reporters of this bug type with the TS-L632D optical drive have been experiencing more than one bug. Thanks. -- system locking up (forcing a hard reboot) https://bugs.launchpad.net/bugs/89362 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