Confirmed. Sandybridge laptop is waking up lots whilst screensaver is on. PowerTOP 1.97 Overview Idle stats Frequency stats Device stats Tunables Summary: 146.0 wakeups/second, 0.0 GPU ops/second and 0.0 VFS ops/sec Usage Events/s Category Description 2972 rpm Device Laptop fan 100.0% Device Audio codec hwC0D0: Conexant 100.0% Device Audio codec hwC0D3: Intel 3.4 ms/s 35.5 Process compiz 2.8 ms/s 21.7 Process /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch 510.8 µs/s 16.8 Timer hrtimer_wakeup 0.8 ms/s 12.8 Interrupt [6] tasklet(softirq) 513.6 µs/s 10.8 Process nautilus -n 439.5 µs/s 9.9 Process syndaemon -i 0.5 -K -R 58.5 µs/s 8.9 kWork ieee80211_iface_work 209.6 µs/s 4.9 Interrupt [7] sched(softirq) 8.6 ms/s 1.0 Process powertop 97.3 µs/s 3.9 Timer tick_sched_timer 73.6 µs/s 3.9 Interrupt [47] i915 75.8 µs/s 2.0 Process /usr/lib/rtkit/rtkit-daemon 0.9 ms/s 1.0 Process /usr/lib/gnome-settings-daemon/gnome-settings-daemon 412.4 µs/s 1.0 kWork e1000_watchdog_task 162.5 µs/s 1.0 Process sshd: alan@pts/1 127.1 µs/s 1.0 Process /usr/lib/indicator-datetime/indicator-datetime-service 79.0 µs/s 1.0 Process /usr/lib/accountsservice/accounts-daemon 76.3 µs/s 1.0 Process zeitgeist-datahub 75.7 µs/s 1.0 Process /usr/lib/gvfs/gvfsd-trash --spawner :1.6 /org/gtk/gvfs/exec_spaw/0 65.2 µs/s 1.0 Process /usr/lib/gvfs/gvfs-gdu-volume-monitor 64.0 µs/s 1.0 Process /usr/lib/x86_64-linux-gnu/gconf/gconfd-2 59.6 µs/s 1.0 Process /usr/lib/x86_64-linux-gnu/colord/colord 53.4 µs/s 1.0 Process /usr/lib/gvfs/gvfs-afc-volume-monitor 45.1 µs/s 1.0 Process /sbin/wpa_supplicant -B -P /run/sendsigs.omit.d/wpasupplicant.pid -u -s -O /var/run/wpa_supplicant 7.0 µs/s 1.0 kWork gen6_pm_rps_work 4.1 µs/s 1.0 kWork flush_to_ldisc 0.8 ms/s 0.0 Interrupt [50] iwlwifi 174.5 µs/s 0.0 Process [kworker/u:2] 131.7 µs/s 0.0 Process [kworker/u:1] 125.8 µs/s 0.0 Interrupt [9] RCU(softirq) 84.5 µs/s 0.0 Timer delayed_work_timer_fn 81.5 µs/s 0.0 kWork do_dbs_timer 80.3 µs/s 0.0 Process [kworker/0:0] 64.4 µs/s 0.0 Interrupt [1] timer(softirq) 46.9 µs/s 0.0 Process [kworker/2:1] 33.7 µs/s 0.0 kWork iwl_bg_run_time_calib_work 33.1 µs/s 0.0 Process [ksoftirqd/0] 14.0 µs/s 0.0 Process [kworker/3:1] 13.7 µs/s 0.0 Process [ksoftirqd/2] 8.7 µs/s 0.0 Timer clocksource_watchdog 6.0 µs/s 0.0 kWork vmstat_update 5.7 µs/s 0.0 Interrupt [3] net_rx(softirq) 5.1 µs/s 0.0 Interrupt [46] eth1 5.0 µs/s 0.0 Timer e1000_watchdog 4.4 µs/s 0.0 Timer tpt_trig_timer 3.4 µs/s 0.0 Timer intel_gpu_idle_timer 2.3 µs/s 0.0 Timer intel_crtc_idle_timer 1.4 µs/s 0.0 Timer tcp_write_timer 100.0% Device USB device: Broadcom Bluetooth Device (Broadcom Corp)