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Old 04-01-2013, 02:59 AM   #1
turboscrew
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Location: Nokia (town), Finland
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Thinkpad T42 Sleep is unstable


Does anyone have any ideas why Mint 13 on Thinkpad T42 sometimes goes to sleep, sometimes doesn't get there?
Sometimes 10 times in a row going to sleep works perfectly, then the next 10 times going to sleep gets stuck. Then the sleep works a couple of times again, then it doesn't.
The half-moon light just keeps blinking indicating going to sleep. Steady half-moon light lit means being in sleep.

The pm-suspend.log indicated problems with network manager getting into sleep, and no connection to a WiFi-module, but
even if I disconnect wifi (no network connections at all) the sleep still fail about as often.
I think the errors in the pm-suspend.log are there even when the sleep is succesful.

It begins to look like the problem is somewhere deeper.
Any ideas how to find out what's wrong?

Last time the "pm-powersave.log" had:

Code:
    Notice: '/usr/lib/pm-utils/power.d/95hdparm-apm' disabled by TLP.
after pretty much every entry.

In pm-suspend.log the messages were:

Code:
    /usr/lib/pm-utils/sleep.d/75modules resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/60_wpa_supplicant resume suspend:
    Failed to connect to wpa_supplicant - wpa_ctrl_open: No such file or directory

    /usr/lib/pm-utils/sleep.d/60_wpa_supplicant resume suspend: success.
    Running hook /usr/lib/pm-utils/sleep.d/55NetworkManager resume suspend:
    Having NetworkManager wake interfaces back up...Failed.
 
Old 04-01-2013, 01:34 PM   #2
akolff
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Registered: Jan 2002
Location: Milwaukee
Distribution: Ubuntu Server 12.04.1 LTS
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May not be the software

Hi,
I don't know if this will help, but:

I have a ThinkPad R40 and to get it to go to sleep consistently I had to clear the password in the eeprom that controls access to the hardware settings. I stumbled on this by accident when trying to check my hardware settings. It was the only thing I changed and the problem went away.
 
Old 04-01-2013, 11:49 PM   #3
turboscrew
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If you mean BIOS-settings, all security settings are disabled.
 
Old 04-15-2013, 03:48 AM   #4
turboscrew
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I've tried putting the machine to sleep (standby) via "Quit"-menu, function key and manually:

dbus-send --print-reply --system --dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.Suspend

The same thing happens: sometimes the machine goes to sleep, sometimes not.

What should I look for in the pm-suspend log?
 
  


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