In case it helps (which I doubt, this would be too simple), I restored wakeup after suspend by downgrading intel-microcode 3.20180425.1 to previous version 2.20140122.1
I found it by listing/examining the updates made to the system in days preceding the malfunction, a possibility I didn't find in synaptic or software center (they seem to care only about their own activity). I sorted down possible culprits to procps (and a dependency) or intel- microcode (and iu-tools from backports, which was listed as modified the same day but not updated, strangely). Turns out procps wasn't responsible (for me). HTH (with doubts). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1774150 Title: 3.13.0-149-generic: suspend/resume issue on 14.04 Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04.5 LTS, the most recent kernel update to 3.13.0-149-generic means that my laptop (Acer Aspire V5) does not resume once suspended - all I get is a blank screen, unresponsive to keypresses, and I need to reboot. The 144 kernel is OK, and this question: https://askubuntu.com/questions/1040169/experiencing-suspend-resume-problem-after-latest-kernel-update-ubuntu-14-04 suggests that 147 is OK too. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1774150/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
