OK, I considered that it might be worth purging my last updates which were on 30 April. My reasoning was that while the following text...
"* Stopping MySQL database server mysqld...done * Shutting down Alsa... * Asking remaining processes to terminate... * Deconfiguring network interfaces... * Deactivating Swap... * Will now halt" ...had only been appearing since yesterday, sometimes this text does not appear but the screen goes black without powering off the computer. So I may not have noticed it till yesterday. (Long shot). Anyway, I got rid of the latest linux-headers, linux-headers generic, and linux-image generic packages (2.6.31.21.24) (I still had the previous ones installed), and the problem was solved - on my desktop. But not on my laptop (the object of this bug), which has the problem ever since first installation of Ubuntu months ago. However, this further info may help somebody... ? -- shut down hangs after white ubuntu logo disappears https://bugs.launchpad.net/bugs/507555 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