| View previous topic :: View next topic |
| Author |
Message |
cyberjun
Apprentice
Joined: 06 Nov 2005
Posts: 293
|
 Posted: Sun Nov 06, 2005 6:04 am Post subject: echo "mem" > /sys/power/state does nothing [SOL |
 |
|
Hi,
Have compiled the latest 2.6.14-gentoo kernel on my toshiba M30-742 laptop. The compilation went smoothly and now the system is also running normally. However the sleep states are not working. The commands:
echo "mem" > /sys/power/state
echo "standby" > /sys/power/state
do nothing. The output of cat /sys/power/state is
standby mem
The state "disk" is also missing. There are no error produced in any of the logfiles. One thing I noticed while configuring the kernel
was that the "suspend" option was not visible under ACPI options.
Please provide some pointers. Thanks a lot
--cyberjun
Last edited by cyberjun on Mon Dec 12, 2005 8:38 am; edited 3 times in total |
|
| Back to top |
|
 |
kylezhou
n00b
Joined: 10 May 2005
Posts: 64
Location: Australia
|
| Posted: Sun Nov 06, 2005 6:27 am Post subject: |
|
|
I got similar problem.
I am using 2.6.13-gentoo-r3 kernel in Toshiba Tecra 8100
I have standby, mem, disk
but echo standby and mem does nothing
echo disk will cause kernel panic
no idea what is wrong. I can only assume the kernel is not mature enough to support my hardware.
_________________
You won't know the benefit of a heater unless it's cold enough. |
|
| Back to top |
|
|
Bollenator
n00b
Joined: 12 Apr 2004
Posts: 44
Location: WA, USA
|
| Posted: Mon Nov 14, 2005 2:35 am Post subject: |
|
|
Don't you need to include the "-n" switch for echo so it looks like this?
| Code: | | $ echo -n "mem" > /sys/power/state |
I've been researching standby and hibernate for a little while and I always see the "-n" switch to not echo the trailing newline character. If you've tried this and it was just a typo, disregard; otherwise, HIH!
_________________
Bollenator
"This one's a mystery, wrapped in an enigma, baked in a conundrum, splashed with brain-twisters, diced, and served cold on a riddle roll with secret sauce." |
|
| Back to top |
|
|
cyberjun
Apprentice
Joined: 06 Nov 2005
Posts: 293
|
| Posted: Mon Nov 14, 2005 6:33 am Post subject: |
|
|
Hi,
Thanks for the suggestion. Well have tried that...doesn't work. I think gentoo custom kernels lack suspend/standby completely. Probably they have removed all that functionality from gentoo-sources and put it in suspend2-sources....can't bet on that though.
Has anybody seen this ?
--cyberjun |
|
| Back to top |
|
|
cyberjun
Apprentice
Joined: 06 Nov 2005
Posts: 293
|
| Posted: Fri Nov 18, 2005 2:50 pm Post subject: |
|
|
Hi,
I think I have found out the source of this trouble. I can't verify now as I am in the process of compiling the new suspend2 kernel. The reason Suspend options were not visible in the kernel configuration is that Suspend and CONFIG_SMP don't like each other. Details can be found in one of my other threads. And probably for the same reason, sleep states don't work. This is the link
https://forums.gentoo.org/viewtopic-t-403496-highlight-cyberjun.html
cheers,
--cyberjun |
|
| Back to top |
|
|
|
Kernel & Hardware
