Bug 57375 - Suspend with X display hangs on Dell CPxJ running X
Summary: Suspend with X display hangs on Dell CPxJ running X
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: apmd
Version: 7.2
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Bernhard Rosenkraenzer
QA Contact: Aaron Brown
Depends On:
TreeView+ depends on / blocked
Reported: 2001-12-11 02:02 UTC by Matthew Saltzman
Modified: 2007-04-18 16:38 UTC (History)
0 users

Clone Of:
Last Closed: 2002-01-19 22:32:42 UTC

Attachments (Terms of Use)

Description Matthew Saltzman 2001-12-11 02:02:15 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.6) Gecko/20011120

Description of problem:
apmd with CHANGEVT=7 in /etc/sysconfig/apmd doesn't change *from* X 
display *to* text console before suspend.  On some machines (such as Dell 
CPxJ), this causes the machine to freeze during suspend.  Powering off 
and on causes reboot from scratch, including fsck.

Version-Release number of selected component (if applicable): apmd-3.0final-34

How reproducible:

Steps to Reproduce:
1. From X display, press [Fn]-[Esc] to suspend.

Actual Results:  The machine blanks the display and freezes with the power
light on.  When the power button is pressed, the machine powers off completely.

Expected Results:  The display should switch from the X display to VC-1
before initiating the suspend sequence.  Suspend from a text VC works
correctly on the CPxJ.

Additional info:

After switching to a text VC manually and suspending, the machine
completes the suspend operation normally.  Powering back on brings the
machine back *and* switches back to VC-7 and the X display, as expected.

This operation worked correctly in RH 7.1.

Comment 1 Bernhard Rosenkraenzer 2002-01-17 21:33:19 UTC
This is odd, because the apmscript still does the exact same thing:

        [ "x`pidof X`" != x ] && {
                [ "$CHANGEVT" != "0" ] && chvt 1

Also, I can't reproduce this problem (using different hardware, though).

The ideal fix is to have Dell fix their BIOS (a sane notebook can suspend without switching to text mode); looking for a workaround...

By any chance, does adding a delay after the chvt command help
(try inserting "sleep 2s" after the

               [ "$CHANGEVT" != "0" ] && chvt 1

Might be a race condition.

Comment 2 Matthew Saltzman 2002-01-19 22:32:37 UTC
>The ideal fix is to have Dell fix their BIOS (a sane notebook can suspend
>without switching to text mode)

Yes, but: (1) It doesn't happen in Win2K.  (2) Dell won't support Linux on this
machine for me.  Maybe you'd have better luck.

I tried your sleep suggestion and a few other things, and I learned the following:

The system is not freezing.  But if I suspend from X, it does take about 30
seconds to shut off.  When I restart it the first time, it shuts off again, by
itself!  The next time I turn it on, it starts up fine.

If I change to vc1 manually, it suspends in a couple of seconds, and comes right
back to vc7 on powerup.

Make of that what you will.

Comment 3 Matthew Saltzman 2002-02-05 03:58:43 UTC
Well, I have to give up on this bug.  My CPxJ has been replaced by a Latitude
C610.  I'm running the Rawhide kernel and Mike Harris's XFree86-4.2 on that
machine, and it suspends and resumes flawlessly (except for the NIC, but that's
another story--bug to come, I think).

I won't have the CPxJ to test, and as I seem to be the only complainant, I guess
you might as well close this one.  I set the status to WORKSFORME because it
does now for both of us, but if something else would be more accurate, feel free.

Note You need to log in before you can comment on or make changes to this bug.