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Standby state immediately resumes: "echo -n 'standby' > /sys/power/state" Here's the output: PM: Preparing system for suspend Stopping tasks: ============================================================================| Restarting tasks... done It seems like the standby state is actually working, but it immediately "wakes up". The preceding output happens in less than a second and I don't have to touch any buttons or do anything to bring it out of the standby state. Mem state causes hard lockup: "echo -n 'mem' > /sys/power/state" I can't paste the output here because my computer locks up, but lets just say that a few messages scroll past and then everything stops after in prints out a line that says something like "Entering state:" At this point the laptop fan kicks into high gear and nothing I do causes any changes. I have to do a hard reset to get the computer to reboot. I believe that the 'disk' state exhibits the same behavior as the 'mem' state. Hardware details: Averatec 3120V Laptop Just in case it'll help, I'll attach the output from 'dmesg' and 'lspci' in a sec.
Created attachment 100457 [details] Output from 'dmesg' and 'lspci' commands.
can you try the latest kernel from http://people.redhat.com/arjanv/2.6 I've added some suspend/resume enhancements to that.
I installed this kernel: http://people.redhat.com/arjanv/2.6/RPMS.kernel/kernel-2.6.6-1.383.i686.rpm The results weren't any different.
can you try rmmod ehci_hcd before going to sleep state? For me at least the ehci_hcd module is preventing the suspend...
Created attachment 100694 [details] Ouput of 'ps ax' before running acpi state commands.
Created attachment 100695 [details] Output from 'lsmod' before running acpi state commands.
I trimmed my modules and processes down to a minimum (see the attachments) and the behavior of the acpi states didn't change.
i have exactly the same problem with a acer travelmate 660. I am using kernel 2.6.6-422. 'suspend' returns immedately while 'mem' works after unloading ehci-hdc. after i press a key in the 'mem' state, all lights light up for a short time and the fan spins up, but it the screen stays blank.
same problem many times i get a message if i run the command from the console stating: "/bin/echo: write error: Resource temporarily unavailable" i have a toshiba laptop (A45-SP150, latin american market)
I receive the same results as in initial post here. echo 1 > /proc/acpi/sleep gives no results except the quick dmesg blurb... echo 3 > /proc/acpi/sleep crashes hard (even after usb removed) with the last lines for me: RIP <ffffffff8011ae1e>{do_suspend_lowlevel+222} RSP <00000100391ffe38> <6>APIC error on CPU0: 80(08) I have a Mitac 855 AMD64 laptop and am using FC2 with 2.6.7-1.492 Any update yet? I need to demo this laptop at linux world, but suspend is important. Thanks!! cosmo at pogolinux . com
I have a HP compaq nc8000, running echo -n 'mem' > /sys/power/state seems put the computer to sleep and immediately wake up. After rmmod ehci_hcd the system seems to stay in sleep mode but I suspect it's just crashed since it doesn't wake up without a reboot. echo -n 'standby' > /sys/power/state doesn't seem to do anything. These are the only entries in /var/log/messages: with ehci_hcd the system wakes up directly after sleep, no crash Jul 28 11:01:38 localhost kernel: Stopping tasks: =========================================| Jul 28 11:01:38 localhost kernel: Restarting tasks... done after rmmodding ehci_hcd the system crashes Jul 28 11:01:55 localhost kernel: Stopping tasks: =========================================| Jul 28 11:01:55 localhost kernel: Restarting tasks... done Jul 28 11:06:41 localhost syslogd 1.4.1: restart.
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