Re 1: the issue started to happen after I moved the hard disk to the 840 G1 (from a 6930p), which was around August/September. Updates usually get installed within a day (unless I have only limited Internet access, which was not the case when I switched laptops), thus the system should have been fairly up-to-date at the time.
Re 2: I will keep an eye on this, may take a while though (most of the time the system is docked or has an external display connected). Re 3: I would say several times per day (i.e. 8–16 hours of usage), every few hours on average. I’ll keep an eye on it and report back. -- 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/1715749 Title: Intermittent black screen on HP EliteBook 840 G1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1715749/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp