I followed the instructions on the page you provided. I upgraded my bios to the latest version. That didn't help. I couldn't disable ACPI without disabling suspend too. I attached the requested files. In addition I followed the instructions at https://wiki.ubuntu.com/DebuggingKernelSuspend and included dmesg.txt
Magic number: 0:731:892 [ 16.093343] hash matches /build/buildd/linux-2.6.24/drivers/base/power/main.c:76 [ 16.093445] hash matches device ptyy2 [ 16.093511] hash matches device 0000:00:1f.5 ** Attachment added: "dmesg.txt" http://launchpadlibrarian.net/14856468/dmesg.txt -- System Crash on resume from suspend. FATAL: Module hostap_cs is in use. https://bugs.launchpad.net/bugs/235869 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