My Thinkpad X61-tablet (7764CTO) has various trouble with the Ultrabase(tm) and suspend:resume. There is a mechanical button on the left of the ultrabase for end-user to Request_Undock. Under win-dose, this causes a request for hibernation and associated power-off shutdown. The end-user will then separate the ultrabase and restart the system. On restart, win-dose will announce that parts are missing (due to ultrabase disconnect) but will wake-up in a functional state.
ANALYSIS: This Ultrabase is a port replicator that includes various network, telephony, and USB connectors as well as connectors for the external video monitor. In addition, there is an UltraBay(tm) for connection of a CD or DVD or HDD drive or a secondary battery pack. I suspect that drivers for the various USB hubs and port replications or "disk drives" do not correctly or adequately sweep the desk during suspend and are thus is a confused state on wake. It is my experience that "confused drivers" most often lead to something not responding or kernel panic or both. ~~~ 0;-Dan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/297663 Title: Thinkpad X61 tablet - resume hangs after undocking and subsequent suspend to RAM -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs