[ltp] ACPI suspend works once, then fails. (A22p)

Richard Neill linux-thinkpad@linux-thinkpad.org
Thu, 03 Aug 2006 07:39:42 +0100


Dear All,

Has anyone seen the following behaviour before?

1)Cold boot, into runlevel 1 with "linux single"
2)echo 3 > /proc/acpi/sleep
     #Thinkpad suspends fine. Crescent comes on.
3)Press Fn key.
     #Thinkpad wakes up again.
4)echo 3 > /proc/acpi/sleep
     #Thinkpad hangs. It spins down the disk, but does
     #not get as far as suspending. Can press Ctrl-Alt-F2
     #to get a login prompt, and can type "root", but nothing
     #happens thereafter. Alt-SysrQ-RSEIUB required to shutdown.

I've repeated this multiple times, with different kernels (2.6.16.20 and 
2.6.17.7). Each time, the first suspend-resume cycle is perfectly OK, 
but the second dies.

The machine is an A22p.


Thanks for any suggestions,

Richard


-- 
rn214@hermes.cam.ac.uk  **  http://www.richardneill.org
Richard Neill, Trinity College, Cambridge, CB21TQ, U.K.