I confirm, sometime suspend fails and syslog says: (my ubuntu is an upgrade from 15.10 to 16.04) model: asus-n551vw
Jan 29 19:46:39 asus-n551v systemd[1]: Reached target Sleep. Jan 29 19:46:39 asus-n551v systemd[1]: Starting Suspend... Jan 29 19:46:39 asus-n551v systemd-sleep[16200]: Failed to connect to non-global ctrl_ifname: (nil) error: No such file or directory Jan 29 19:46:39 asus-n551v systemd-sleep[16201]: /lib/systemd/system-sleep/wpasupplicant failed with error code 255. Jan 29 19:46:39 asus-n551v systemd-sleep[16200]: Suspending system… and next the pc restart!! Jan 29 20:39:14 asus-n551v kernel: [ 0.000000] Linux version 4.9.4-040904-generic (kernel@tangerine) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) I tryed more version of kernel like: 4.7.3/4.8.0/4.8.3/4.9.0 but everything sometime Fails! -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1585863 Title: WiFi malfunction after suspend & resume stress - sudo wpa_cli scan required to fix it. Status in OEM Priority Project: New Status in OEM Priority Project xenial series: Confirmed Status in network-manager package in Ubuntu: Confirmed Bug description: Description: Ubuntu Yakkety Yak (development branch) Release: 16.10 Packages: libnm-glib-vpn1:amd64 1.2.2-0ubuntu2 libnm-glib4:amd64 1.2.2-0ubuntu2 libnm-util2:amd64 1.2.2-0ubuntu2 libnm0:amd64 1.2.2-0ubuntu2 network-manager 1.2.2-0ubuntu2 Reproduce steps: 1. Install fwts by `sudo apt-get install fwts`. 2. Run the suspend & resume stress test. sudo fwts s3 --s3-multiple=30 --s3-min-delay=5 --s3-max-delay=5 --s3-delay-delta=5 Expected result: The WiFi still functioned. Actual result: The WiFi can not connect to any access point and we have to execute `sudo wpa_cli scan` manually to make it work again. P.S. Ubuntu 16.04 also has the same issue. To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1585863/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp