Arch Linux

skrat

Member

Registered: 2013-05-10

Posts: 39

[MOVED] Suspend hangs

I have a Lenovo Thinkpad X1 Carbon, running Arch Linux booting from UEFI/GRUB. Sometimes when I suspend (to RAM) the system hangs in the process. It used to happen maybe 5% times, but after recent upgrades, it's more of 30% chance. This laptop has a LED indicating suspend/resume status. When it's in the process of suspending/resuming, it flashes, when it's suspended, it slowly fades in and out.I have laptop-mode-tools and pm-utils installed but I never use it.

What happens is that when I suspend (using XFCE or with sysctl suspend), the screen goes blank (as in turned off, no cursor), and the suspend LED keeps flashing forever. I can hear the fan is still spinning. The only way out of this state is to hold the power button long enough to shutdown entirely. How can I debug this?

Last edited by skrat (2013-09-02 13:07:13)

skrat

Member

Registered: 2013-05-10

Posts: 39

Re: [MOVED] Suspend hangs

Moving on to https://bbs.archlinux.org/viewtopic.php … 2#p1319922

GloW_on_dub

Member

Registered: 2013-03-13

Posts: 388

Re: [MOVED] Suspend hangs

In the wiki, acpid and laptop will help you.

You should first begin by identify the signal and see wich action is connected to it.