This line in /var/log/messages gives it away: May 20 09:25:39 jake-tablet kernel: [ 1919.176000] eth1: Radio is disabled by RF switch.
I searched for this and found that when my laptop resumes from sleep, for some weird reason the WiFi radio is disabled. I downloaded and installed 'acerhk' which makes my Acer's HotKeys (including a wireless switch) work. So now after resume, I can press the appropriate hotkey (a couple of times) until the switch goes back to 0 (meaning not-disabled, i.e. 'on'). To check whether on or not I do: $ cat /sys/bus/pci/drivers/ipw2100/*/rf_kill ... this tells me the state of the rf switch, with possible values: 0 = RF kill not enabled (radio on) 1 = SW based RF kill active (radio off) 2 = HW based RF kill active (radio off) 3 = Both HW and SW RF kill active (radio off) ... 0 is what I want. When the laptop resumes from sleep though, it defaults to 2. The Acer HotKey program can be downloaded from here: http://www.cakey.de/acerhk/ After downloading and 'make' 'make install' a 'modprobe acerhk' is also needed as root. Still, this is still a bug. Its taken me a few hours to figure this out and have stretched my technical knowledge. Best of luck if my gran wanted to get it working. -- Wireless not working after suspend (S3) with ipw2100 https://bugs.launchpad.net/bugs/115743 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs