I've been fighting this same problem on my 560 and Linux 2.0.36. What I
have found is the following:
- Kernel parameters have no apparent impact
- SCSI PCMCIA (Adaptec 1460) will only suspend with no devices
- Using the floppy, then disconnecting it will prevent 2nd suspends
but workaround is rmmod the floppy driver before it auto unloads.
- Screen blanking is a *shoot while running
- Resume may or may not bring back the screen backlight. Workaround is
set a password and use funcF4, func to keep retrying until its OK.
- There is a patch for the 1.20 BIOS, I haven't bothered.
By the way, the disk running while the lid is closed is normal if the
disk is in use (which is almost always unless you turn off everything
useful like cron, at, screen savers/lockers, and syslogd.
I suspend routinely without problems other than the caveats above using
the command "apm -s" rather than func-F4. I don't use hibernation as
that requires using the func-keys and does not guarantee that Linux is
in a suspendable/stoppable state. It seemed to work most of the time
when I tried it, but when it doesn't the machine is locked up and must
be reset (even the power switch was hosed).
Good luck. And if you find any more solutions, please post them!
>I have an IBM Thinkpad 560 (no trailing letters) running RedHat 6.0
>(linux kernel 188.8.131.52-15).
>I've installed the Win95 bios (sytpk111.exe) on the machine because
>the machine locks up on resume with the Win98 bios (sytpk120.exe)
>I have the following problems with APM on it:
> Occassionally the backlight does not turn back on after a resume
> Disk drive does not shut down when the lid closes
> Desired APM mode can not be entered
>Everything seems to work the for the first suspend/resume cycle, but
>after that, getting the machine to enter suspend seems pretty random.
>I've configured APM with the following options:
># CONFIG_APM_IGNORE_USER_SUSPEND is not set
># CONFIG_APM_ALLOW_INTS is not set
>Does anyone have any insights or suggestions on this?
Dr. Vincent C. Jones, PE Expert advice and a helping hand
Computer Network Consultant for those who want to manage and
Networking Unlimited, Inc. control their networking destiny