Package: linux-image Version: 4.19.0-5-amd64 When I suspend my Lenovo x240 laptop via xfce UI, the screen goes dark as if it goes to sleep, but the power button LED doesn't start to "blink" as it normally does, it just turns of. If I close and open the lid to wake it up, it doesn't. Pressing the power button (a short press, which ... shouldn't power down it) turns on the laptop and the normal boot process starts.
Here's what I have in /var/log/messages around that time: Sep 6 00:51:44 xemulnb NetworkManager[660]: <info> [1567720304.3207] manager: sleep: sleep requested (sleeping: no enabled: yes) Sep 6 00:51:44 xemulnb NetworkManager[660]: <info> [1567720304.3209] manager: NetworkManager state is now ASLEEP ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@Sep 6 10:48:50 xemulnb kernel: [ 0.000000] Linux version 4.19.0-5-amd64 (debian-ker...@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.37-5+deb10u2 (2019-08-08) Sep 6 10:48:50 xemulnb kernel: [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-4.19.0-5-amd64 root=/dev/mapper/xemulnb--vg-root ro quiet Here's the /var/log/syslog contents: Sep 6 00:51:44 xemulnb NetworkManager[660]: <info> [1567720304.3207] manager: sleep: sleep requested (sleeping: no enabled: yes) Sep 6 00:51:44 xemulnb NetworkManager[660]: <info> [1567720304.3209] manager: NetworkManager state is now ASLEEP Sep 6 00:51:44 xemulnb systemd[1]: Reached target Sleep. Sep 6 00:51:44 xemulnb systemd[1]: Starting Suspend... ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@Sep 6 10:48:50 xemulnb kernel: [ 0.000000] Linux version 4.19.0-5-amd64 (debian-ker...@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.37-5+deb10u2 (2019-08-08) -- Pavel
