I was having this problem also. What happens is that wpa_supplicant keeps the interface device open, while the acpi sleep script does the pccardctl eject command. After that there are several processes in D state, and the system is stuck. You can still reboot, but it will not stop all the way, as not all processes can be killed (they are in the D state). It seems the new rt2x00 driver can not cope with this situation (my other laptop with ipw3945 works fine though).
I managed to fix this with the following patch to /etc/acpi/suspend.d/55-down-interfaces.sh # Get rid of any currently running dhclients killall dhclient dhclient3 2>/dev/null + killall wpa_supplicant 2>/dev/null this kills the wpa_supplicant process, frees the device before it is too late, and the machine suspends/resumes fine (as with the legacy driver (not using wpa_supplicant)). hope this helps for others, please test, and report back, so this small fix (which should not hinder other setups I think) may be incorporated. -- [gutsy] NetworkManager causes hang when suspending https://bugs.launchpad.net/bugs/137666 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
