Hi! I enabled the sleep leds, and am using following script to set the machine up for power management: #!/bin/bash uarts=$(find /sys/class/tty/ttyO*/device/power/ -type d) for uart in $uarts; do echo 3000 > $uart/autosuspend_delay_ms done uarts=$(find /sys/class/tty/ttyO*/power/ -type d) for uart in $uarts; do echo enabled > $uart/wakeup echo auto > $uart/control done sudo mount /dev/zero -t debugfs /sys/kernel/debug/ echo 1 > /sys/kernel/debug/pm_debug/enable_off_mode So far, the LEDs stubbornly stay on :-(. Machine is booted off sd-card, and I'm connected to it over wifi. GSM is active, X is running. Normally, ping looks like this: 64 bytes from 192.168.43.15: icmp_seq=371 ttl=64 time=2.18 ms 64 bytes from 192.168.43.15: icmp_seq=372 ttl=64 time=2.21 ms 64 bytes from 192.168.43.15: icmp_seq=373 ttl=64 time=2.94 ms When I enable the off mode: echo 1 > /sys/kernel/debug/pm_debug/enable_off_mode Wifi is no longer happy: 64 bytes from 192.168.43.15: icmp_seq=426 ttl=64 time=351 ms 64 bytes from 192.168.43.15: icmp_seq=427 ttl=64 time=178 ms 64 bytes from 192.168.43.15: icmp_seq=428 ttl=64 time=2.36 ms and touchscreen stops working: [99480.564910] tsc2005 spi1.0: TSC200X not responding - resetting [99486.995758] bq27xxx-battery 2-0055: battery is not calibrated! ignoring capacity values [99488.564147] tsc2005 spi1.0: TSC200X not responding - resetting [99495.550018] bq27xxx-battery 2-0055: battery is not calibrated! ignoring capacity values [99496.564208] tsc2005 spi1.0: TSC200X not responding - resetting [99504.129852] bq27xxx-battery 2-0055: battery is not calibrated! ignoring capacity values [99504.564208] tsc2005 spi1.0: TSC200X not responding - resetting echo 0 > /sys/kernel/debug/pm_debug/enable_off_mode Fixes both wifi and touchscreen. Is off_mode expected to break touchscreen? Any ideas what needs to be shut down so that the sleep leds go off? Power consumption seems to be in 500mA range, regardless of off_mode. That would mean about 2 hours of battery life, AFAICT. Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html