I'm using FC1, updated from RH9, on a Dell Latitude C840, and I've had
nothing but problems with suspend. Sometimes it works fine; other
times I experience a variety of problems after unsuspending:
- The screen is divided in half, and the top and bottom halves are
swapped. If this happens, then Ctl-Alt-F1 followed by Ctl-Alt-F7
usually clears up the problem (but not always).
- My network interfaces get screwed up. Sometimes this can be cleared
up by simply restarting the network services, and then restarting
PCMCIA (which activates the wireless network). But other times,
this isn't sufficient to get things working again, and I have to
reboot.
- Other services die mysteriously. I can remember in particular ntpd
and xscreensaver, although I'm sure there's been more, and one time
an "su root" session on one of my terminal windows exited (I was
logged in as root when I suspended, and when I unsuspended the root
session had exited).
- Near-total lock-up. The keyboard is unresponsive, and I must use
the power button to shut down.
- Total lock-up. The keyboard, including the power button, are
unresponsive, and the only way to regain control is to unplug AC
power and take out the battery.
The most interesting thing is that it's a crap shoot. I don't know
what to expect when I suspend. I'd say that a little over half the
time, there are no problems, and the other half I get one (or more!)
of the above problems.
After poking around the docs, I ended up uncommenting the lines
CHANGEVT="7"
PCMCIARESTART="yes"
in /etc/sysconfig/apmd, but I still get all of the above problems,
although their frequency might have changed (it's hard to say without
a large sample). I always hear the PCMCIA beeps at suspend and
unsuspend, but it is still sometimes necessary to restart PCMCIA by
hand. Also, the time it takes to suspend and unsuspend varies
considerably.
Any ideas or suggestions?
--
Todd Wilson A smile is not an individual
Computer Science Department product; it is a co-product.
California State University, Fresno -- Thich Nhat Hanh
