I've read other threads like this, as I sometimes had the same problem on an Lenovo X301. The workaround for me was to switch to just one cpu core before suspending/hibernating. When you resume/thaw, give it a few seconds and switch the other core back on. This worked for me. The theory is that there is a multi-threading issue somewhere which can affect multi-core CPU, perhaps just these low-power ones. You can automate the fix with a script in /etc/pm/sleep.d/, see thread for example:
http://ubuntuforums.org/showthread.php?t=959712&page=2 Aaron. -- Resume from suspend doesn't not work on the Mobile 4 Series chipsets https://bugs.launchpad.net/bugs/276943 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs