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Test8 suspend fails if laptop lid closed.

DISCUSSION Rob Landley 3 participants 3 messages Oct 22, 2003

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Interesting. Suspend to disk (echo -n disk > /sys/power/state) works just fine as long as I keep the laptop open until it powers down. (I timed it, it takes 35 seconds by the way. Over half of this is "freeing memory" without the hard drive light actually going...)

If I close the lid while it's busy suspend, it won't. It'll almost suspend, but the CPU power will stay on, the fan will stay running, and the backlight will stay on even though the screen is otherwise black. Only thing to do then is hold the power button down for ten seconds until it fully powers off, then reboot it.

It works reliably so far if I leave the lid open, and fails reliably with the lid closed before it's actually done suspending. This is on a thinkpad iSeries 1200 something. (Serial number starting with 1171 6xu, from which the model number can be googled for if it matters...)

Any ideas?

Rob

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A couple of us have seen the same thing under 2.4. I've found a hack solution for my laptop, but need to investigate more. It certainly looks like an ACPI problem from here.

Regards,

Nigel

Quoted 24 lines · Rob Landley

Interesting. Suspend to disk (echo -n disk > /sys/power/state) works just fine as long as I keep the laptop open until it powers down. (I timed it, it takes 35 seconds by the way. Over half of this is "freeing memory" without the hard drive light actually going...)

If I close the lid while it's busy suspend, it won't. It'll almost suspend, but the CPU power will stay on, the fan will stay running, and the backlight will stay on even though the screen is otherwise black. Only thing to do then is hold the power button down for ten seconds until it fully powers off, then reboot it.

It works reliably so far if I leave the lid open, and fails reliably with the lid closed before it's actually done suspending. This is on a thinkpad iSeries 1200 something. (Serial number starting with 1171 6xu, from which the model number can be googled for if it matters...)

Any ideas?

Rob
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Signature · 5 lines
Nigel Cunningham
495 St Georges Road South, Hastings 4201, New Zealand

Evolution (n): A hypothetical process whereby infinitely improbable events occur 
with alarming frequency, order arises from chaos, and no one is given credit.
#2 lore raw

Thus wrote Nigel Cunningham:

Quoted 3 lines

A couple of us have seen the same thing under 2.4. I've found a hack solution for my laptop, but need to investigate more. It certainly looks like an ACPI problem from here.

Provided he's actually using ACPI. My laptop will halt the processor and enter a sort of stanby state if when legacy (APM) mode and the lid is closed.
Best regards,

Signature · 2 lines
Karol 'sziwan' Kozimor
[email protected]