Red Hat Bugzilla – Bug 111689
kernel 2.4.21-4.0.1.EL has no apm support (tested on dell d600 laptop)
Last modified: 2007-11-30 17:06:59 EST
Description of problem:
when running apm -s with the 2.4.21-4.0.1.EL kernel, apm returns
[root@localhost]# /usr/bin/apm -s
No APM support in kernel
[root@localhost]# uname -a
Linux localhost.localdomain 2.4.21-4.0.1.EL #1 Thu Oct 23 01:36:33 EDT 2003
i686 i686 i386 GNU/Linux
there exists no file called "/proc/apm".
Version-Release number of selected component (if applicable):
Tested on one system. Not sure if reproducible but seems to be simple: apm is not
compiled into the upgraded kernel.
Steps to Reproduce:
1. Install RHEL WS 3.0 on a laptop. run up2date-nox and upgrade the kernel to
2. try to put the laptop to sleep with apm: /usr/bin/apm -s (nothing happens,
program mentions that there is no support for APM in the kernel.
program exits with above mentioned error message: "No APM support in kernel"
laptop goes into suspend mode.
Additional info: output from dmesg after a boot attached later.
*** Bug 111691 has been marked as a duplicate of this bug. ***
Created attachment 96417 [details]
dmesg output after boot
"apm: BIOS not found."
sounds more like your laptop doesn't have APM support....
checked online today and did a little search... while there are no
concrete links, it seems that APM does not work on this laptop (how
can anyone make a laptop without APM support?!?) and ACPI only if the
bios is patched...