Problems withs uspend on IBM thinkpad 380xd - screens stay blank on resume
I am trying to get suspend, hibernate, etc. working on
an IBM thinkpad 380xd. I managed to recompile a kernel
with the thinkpad modules included. The problem I am
having is that the laptop seems to enter supsend OK, but
on resume, the display stays blank (the backlight turns on though).
I can ping, telnet, etc.
to the laptop, but no consoles are viewable. I am using text consoles
right now, and I plan to use X "on demand" rather than on boot.
I have X turned off while I try to fiure this suspend stuff out.
Both Fn-F4 on the keyboard and apm --suspend seem to exhibit this
problem.
BTW, I have used Linux before, but I am new to Debian.
I am running the 3.0r1 stable distribution. I started with
the 2.4.18-bf2.4 kernel.
If it is helpful, here is what kernel sources I used:
kernel 2.4.18
apmd 3.0.2 (from stock debian binary package--did not compile this)
thinkpad-source 3.5
pcmcia-cs 3.1.33
The laptop model is 2635FAU
Here are the APM options I compiled in the kernel:
CONFIG_PM=y
# CONFIG_ACPI is not set
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=y
CONFIG_APM_RTC_IS_GMT=y
CONFIG_APM_ALLOW_INTS=y
# CONFIG_APM_REAL_MODE_POWER_OFF is not set
Are there some things I should set up related to tpctl? I have used that
utility to query
BIOS settings from the new kernel without problems. I'm not sure if I need
to
modify APM mode scripts or something (like ejecting cards, etc.) because I
haven't figured out how Debian handles those events.
I don't know if it matters, but I turned off PCMCIA support in the kernel in
order to use
pcmcia-cs instead. The latter works with my SMC-8035TX ethernet card. Plus I
think I need this to get a Linksys WPC11 ver 3 working as well (ala
linux-wlan--I saw a HOWTO on ldp for this using pcmcia-cs).
The irony is that Fn-F3 (turn off display) works fine and I can wake up the
display from that with no problems. I also enabled the autoblank after
timeout feature via PS2.EXe under Dos, and that seems to work OK. I enabled
the latter because I noticed that the APM features of Linux would
blank the display, but do not turn off the backlight.
To clarify, the problems I am having are related to suspend (Fn-F4).
apm --suspend seems to have the same problem.
Hibernate doesn't work yet (yes, I have a hiber file on a DOs partition, but
I read in the FAQ on linux-thinkpad.org that there are some other things
that need to be modified first).
--
Dwaine Gonyier
dwaine_gonyier@mindspring.com
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