http://bugzilla.opensuse.org/show_bug.cgi?id=1058814 http://bugzilla.opensuse.org/show_bug.cgi?id=1058814#c1 --- Comment #1 from Hendrik Woltersdorf --- After more tests and check I found, that the backlight helper process (systemd-backlight@backlight:fujitsu-laptop.service) fails and this seems to prevent "suspend to [disk|ram]" from working: Sep 16 14:37:21 schlepptop.site systemd-logind[1342]: Delay lock is active (UID 0/root, PID 2055/upowerd) but inhibitor timeout is reached. Sep 16 14:37:21 schlepptop.site systemd[1]: Reached target Sleep. Sep 16 14:37:21 schlepptop.site systemd[1]: Starting Hibernate... Sep 16 14:37:21 schlepptop.site kernel: PM: Hibernation mode set to 'platform' Sep 16 14:37:21 schlepptop.site systemd-sleep[3644]: INFO: running /usr/lib/systemd/system-sleep/grub2.sleep for hibernate Sep 16 14:37:21 schlepptop.site systemd-sleep[3644]: INFO: Running prepare-grub .. Sep 16 14:37:22 schlepptop.site systemd-sleep[3644]: running kernel is grub menu entry openSUSE Tumbleweed (vmlinuz-4.13.1-1-pae) Sep 16 14:37:22 schlepptop.site systemd-sleep[3644]: preparing boot-loader: selecting entry openSUSE Tumbleweed, kernel /boot/4.13.1-1-pae Sep 16 14:37:23 schlepptop.site systemd-sleep[3644]: running /usr/sbin/grub2-once "openSUSE Tumbleweed" Sep 16 14:37:24 schlepptop.site systemd-sleep[3644]: time needed for sync: 0.8 seconds, time needed for grub: 0.8 seconds. Sep 16 14:37:24 schlepptop.site systemd-sleep[3644]: INFO: Done. Sep 16 14:37:24 schlepptop.site kernel: PM: Syncing filesystems ... Sep 16 14:37:24 schlepptop.site systemd-sleep[3644]: Suspending system... Sep 16 14:37:44 schlepptop.site kernel: PM: done. Sep 16 14:37:44 schlepptop.site kernel: Freezing user space processes ... Sep 16 14:37:44 schlepptop.site kernel: Freezing of tasks failed after 20.006 seconds (1 tasks refusing to freeze, wq_busy=0): Sep 16 14:37:44 schlepptop.site kernel: systemd-backlig D 0 3047 1 0x00000004 Sep 16 14:37:44 schlepptop.site kernel: Call Trace: Sep 16 14:37:44 schlepptop.site kernel: ? __schedule+0x298/0x910 Sep 16 14:37:44 schlepptop.site kernel: ? schedule+0x35/0x80 Sep 16 14:37:44 schlepptop.site kernel: ? schedule_preempt_disabled+0x14/0x20 Sep 16 14:37:44 schlepptop.site kernel: ? __mutex_lock.isra.1+0x20c/0x4b0 Sep 16 14:37:44 schlepptop.site kernel: ? backlight_device_set_brightness+0x1c/0xb0 Sep 16 14:37:44 schlepptop.site kernel: ? brightness_store+0x29/0x40 Sep 16 14:37:44 schlepptop.site kernel: ? backlight_device_set_brightness+0xb0/0xb0 Sep 16 14:37:44 schlepptop.site kernel: ? dev_attr_store+0x18/0x30 Sep 16 14:37:44 schlepptop.site kernel: ? sysfs_kf_write+0x2e/0x50 Sep 16 14:37:44 schlepptop.site kernel: ? sysfs_kf_bin_read+0xc0/0xc0 Sep 16 14:37:44 schlepptop.site kernel: ? kernfs_fop_write+0xea/0x170 Sep 16 14:37:44 schlepptop.site kernel: ? kernfs_vma_page_mkwrite+0x70/0x70 Sep 16 14:37:44 schlepptop.site kernel: ? __vfs_write+0x22/0x150 Sep 16 14:37:44 schlepptop.site kernel: ? common_file_perm+0x4d/0x120 Sep 16 14:37:44 schlepptop.site kernel: ? __alloc_fd+0x9d/0x160 Sep 16 14:37:44 schlepptop.site kernel: ? security_file_permission+0x31/0xb0 Sep 16 14:37:44 schlepptop.site kernel: ? vfs_write+0x94/0x1a0 Sep 16 14:37:44 schlepptop.site kernel: ? SyS_write+0x3c/0x90 Sep 16 14:37:44 schlepptop.site kernel: ? do_fast_syscall_32+0x71/0x150 Sep 16 14:37:44 schlepptop.site kernel: ? entry_SYSENTER_32+0x4e/0x7c Sep 16 14:37:44 schlepptop.site kernel: OOM killer enabled. Sep 16 14:37:44 schlepptop.site rtkit-daemon[2249]: The canary thread is apparently starving. Taking action. Sep 16 14:37:44 schlepptop.site rtkit-daemon[2249]: Demoting known real-time threads. Sep 16 14:37:44 schlepptop.site rtkit-daemon[2249]: Successfully demoted thread 2287 of process 2245 (/usr/bin/pulseaudio). Sep 16 14:37:44 schlepptop.site rtkit-daemon[2249]: Successfully demoted thread 2286 of process 2245 (/usr/bin/pulseaudio). Sep 16 14:37:44 schlepptop.site rtkit-daemon[2249]: Successfully demoted thread 2245 of process 2245 (/usr/bin/pulseaudio). Sep 16 14:37:44 schlepptop.site rtkit-daemon[2249]: Demoted 3 threads. Sep 16 14:37:44 schlepptop.site kernel: Restarting tasks ... done. Sep 16 14:37:44 schlepptop.site systemd[1]: systemd-hibernate.service: Main process exited, code=exited, status=1/FAILURE Sep 16 14:37:44 schlepptop.site systemd[1]: Failed to start Hibernate. Sep 16 14:37:44 schlepptop.site systemd[1]: Dependency failed for Hibernate. Sep 16 14:37:44 schlepptop.site systemd-logind[1342]: Operation 'sleep' finished. Sep 16 14:37:44 schlepptop.site systemd[1]: hibernate.target: Job hibernate.target/start failed with result 'dependency'. Sep 16 14:37:44 schlepptop.site systemd[1]: sleep.target: Unit not needed anymore. Stopping. Sep 16 14:37:44 schlepptop.site systemd[1]: systemd-hibernate.service: Unit entered failed state. Sep 16 14:37:44 schlepptop.site systemd[1]: systemd-hibernate.service: Failed with result 'exit-code'. Sep 16 14:37:44 schlepptop.site systemd[1]: Stopped target Sleep. -- You are receiving this mail because: You are on the CC list for the bug.