Linux Sleep: a new hoop to jump through
This is a follow-up to an earlier post, Linux sleep: how to wake with a key press or mouse click.
Shortly after discovering how to wake a sleeping machine this way – something of a Holy Grail of mine for several years – a new kernel version came along and broke the mechanism. At least, you now seem to have to jump through an extra hoop to enable it, in addition to the one described in the earlier post.
It’s now also necessary to find the relevant USB devices’ files under the
/sys/devices/pci0000:00 tree and
echo "enabled" to them. Version 0.12.0 of the LCFG sleep component has been updated to do this. It should be installed on DICE machines by 14 April 2011. LCFG bug 408 is the bug report associated with the change.