|Summary:||suspend to disk does not power off|
|Product:||Power Management||Reporter:||Michal Suchanek (hramrach)|
|Bug Depends on:|
Description Michal Suchanek 2009-02-06 14:41:43 UTC
Latest working kernel version: none known Earliest failing kernel version: 2.6.24.? Distribution: Debian Hardware Environment: x86_64 ASUS P5L-VM1394 board Software Environment: Linux Problem Description: Recently software suspend does not work for me. However, I am not sure this is a Linux regression because I tried all Debian kernels installed (2.6.24, 2.6.25, 2.6.26), and at least 2.6.24 should be older than the problem. There is possibility that during an upgrade a "fixed" version of the kernel was installed. There is also a possibility that something I am not aware of has changed in the system causing s2d to fail. Either way it must be something Linux does. # poweroff causes the system to power off normally # reboot causes the system to restart without ever powering off # echo disk > /sys/power/state causes the system to power off for a few seconds and then power back on going through the resume in /sys/power/disk 'platform' is selected. Changing to 'shutdown' has no effect. Powering off or suspending non-Linux systems works. Steps to reproduce: # echo disk > /sys/power/state
Comment 1 Rafael J. Wysocki 2009-02-06 15:47:37 UTC
Does it also happen if you unload the ehci-hcd module before hibernation?
Comment 2 Michal Suchanek 2009-02-06 18:21:46 UTC
no. Unloading ehci_hcd fixes the problem. Earlier I had internal USB high-speed card reader attached at all times which I now removed because it malfunctioned and prevented the system from booting. Thanks for the suggestion I will blacklist ehci_hcd in my hibernation script.
Comment 3 Rafael J. Wysocki 2009-02-07 05:40:46 UTC
Please attach the output of lspci from your machine.
Comment 6 Zhang Rui 2009-03-18 20:07:31 UTC
I think the problem has already been fixed in the upstream kernel. please try 2.6.28 and re-open this bug if the problem still exists. *** This bug has been marked as a duplicate of bug 9258 ***
Comment 7 Michal Suchanek 2009-03-19 12:58:58 UTC
This was *reported* with 184.108.40.206. Somebody at the other bug said it's broken with current git, too.
Comment 8 Rafael J. Wysocki 2009-03-19 13:52:50 UTC
That may be another bug with the same symptoms. ehci_hcd on Intel chipsets tends to have this problem. It hasn't been fixed, but the bug isn't new.
Comment 9 Michal Suchanek 2009-03-19 14:07:07 UTC
When they get a fix in I will check if it also fixes my case. I don't like rebooting.