Red Hat Bugzilla – Bug 62448
System hungs when returned from standby mode
Last modified: 2008-08-01 12:22:52 EDT
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Description of problem:
System hungs when it resumes from standby mode initiated either by BIOS call or
user (apm -s). The problem occurs on notebook HP OmniBook 6100 and only when
one is battery powered.
System hungs when it is executing the hwclock command
from /etc/sysconfig/apmscript. The reason is that hwclock can not use /dev/rtc
driver when notebook resumed from standby mode.
I do not know if it is right but when I use --directisa option for hwclock it
all works fine. I also use this option in /etc/rc.d/init.d/halt script in order
to exclude system hung during rebooting.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Turn AC power off
2. Type apm -s or press standby button
3. Resume noteboot pressing standby button again
4. Then the system is executing hwclock command it hungs
Actual Results: The system hungs
Notebook HP OmniBook 6100
kernel 2.4.18 from skipjack SRPM
Assigning to kernel - hangs on accessing /dev/rtc occur there.
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases,
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/