Red Hat Bugzilla – Bug 97335
(DMI)apm does not work
Last modified: 2007-04-18 12:54:48 EDT
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User-Agent: Mozilla/4.0 (compatible; MSIE 5.0; Linux 2.4.20-18.7 i686) Opera 6.12 [en]
Description of problem:
Hardware: dell inspiron 7500 - 512 Mb ram
RedHat has changeg kernel configuration since 2.9 series.
Suspended mode of several laptop brands stopped working since then.
The problem is in .config of the source kernel.
CONFIG_APM_CPU_IDLE=y <---------------------- wrong
should be like 2.9 kernel series:
# CONFIG_APM_CPU_IDLE is not set
This has little impact, and solves all of the troubles of apm freezing when returning
from suspended mode.
Every time I want to update to a new redhat kernel I have to recompile it to have apm working again.
Please consider my request and change the configuration of new kernels.
This problem does not only occur with inspiron laptops, but with a lot of different brands,
which can be easily checked on the net.
Version-Release number of selected component (if applicable):
X freezes after suspended mode
Steps to Reproduce:
Actual Results: Generally freezes when returning from suspended mode.
Expected Results: Should work always, the way it was in 2.9 series and below.
I have tested the cited modification in kernel 2.4.20 (either standard or redhat's)
and works perfectly.
you don't need to recompile for that;
on the kernel commandline has the same effect.
If you can send me the dmidecode output of your machine I can even make this the
default for this laptop. (dmidecode is part of kernel-utils)
Created attachment 92384 [details]
Supplying requested information.
thanks; I've added your bios/machine to the list of "don't do apm idle" machines.