APM Sleep-Resume Freezes on Thinkpad R31
Hey All,
I've been desperately trying to get APM sleep (suspend to memory) to work on
my Thinkpad R31. From what I can tell, it appears that the laptop
successfully sleeps when I press Fn+F4--the screen turns off and the quarter
moon light symbol becomes lit. However, upon resuming from sleep, pressing
Fn+F4, the screen turns on and a strange square appears in the top left hand
corner of the screen and the computer is frozen.
I've tried a variety of kernel versions and configurations without success.
My latest kernel is 2.4.22. I am attempting to use APM and the relevant
configuration is:
CONFIG_PM=y
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
# CONFIG_APM_DO_ENABLE is not set
CONFIG_APM_CPU_IDLE=y
# CONFIG_APM_DISPLAY_BLANK is not set
CONFIG_APM_RTC_IS_GMT=y
CONFIG_APM_ALLOW_INTS=y
# CONFIG_APM_REAL_MODE_POWER_OFF is not set
I would greatly appreciate any suggestions on how to get this feature to
work on the R31.
Thanks in advance,
Graham
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