For the "suspend" after a wakeup, I've a similar problem on my EEEPC 1000HE, I didn't investigate a lot, but on my case I strongly suspect that it is caused by a two process/script that try to manage the same event. It does not happen when I press the Sleep button (Fn+F1 if I recall correctly) but happen everytime when closing the lid. I remember to had lots of problem with ACPI configuration, and some key are still not working as expected, anyway, I've may in my case mess with some ACPI script. Maybe you could look at this first? Manoel Le 2014-04-30 15:13, simsilver Lee a écrit : > Forget to mention, I have tried kernel 3.14, 3.14.1, 3.13.7, and none works well on this. > > On Wed, Apr 30, 2014 at 10:11 PM, simsilver Lee wrote: > >> Hello everyone, I have met a problem recently after once update. My laptop suspends automatically after booting up, and suspends on and on after wakeup. I have checked up the log and there is no obvious errors. It works well on Win7 and Ubuntu Live, and on Gentoo the CPU is about 60 ℃. It also works well in single mode, but suspends quickly after I start NetworkManager service. And I found that it echo "^@" before the first-time suspend in the console. >> >> I have tried some solutions such as pass "pcie_aspm=force" to kernel, disable gdm service, none works. Masking suspend.target and systemd-suspend.service helps, but I want a better solution. >> >> Could someone help me? And what info do I need to attach? >> >> Simsilver