flicker-free suspend/resume on Intel
Posted Mar 8, 2013 0:56 UTC (Fri) by mgedmin
In reply to: flicker-free suspend/resume on Intel
Parent article: The conclusion of the 3.9 merge window
Somewhat tangentially there's a very interesting article about DHCP tricks that MacOS X does to reconnect faster.
I'd love to see Network Manager pick up something from that.
Instead, currently when I suspend a laptop via ssh -t foo sudo pm-suspend, I get to enjoy a lapsed DHCP lease on resume, for a few hours. According to strace that's because dhcpd expiration timer (i.e. select() with a timeout) simply stops while the laptop is suspended. Connection still works, but the wifi router doesn't resolve the laptop's hostname until dhcpd finally wakes up.
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