I can't follow the above instruction, since before that date (6/5/18) I have turned off all options in X-Diagnose, and the system boots every time now.
BUT : 1) The boot process is now verbose, despite turning off all options, and I can't change this back to quiet, which could produce the problem again. 2) Occasionally upon reboot after a new kernel is installed, the system comes up in Ambiance theme, where I had it in Adwatia. To get it back is not straighforward, I must either reboot into straight Ubuntu (not Gnome Flashback) and reset it, or cycle through the options a few times until it sticks. This might be a clue? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1772386 Title: message - Low Graphics mode - about 2/3 of startups - not all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1772386/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp