Lid switch on N150-11 causes Suspend only every other time

Discussions about Linux installation and configuration on Samsung laptops
dougie
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Lid switch on N150-11 causes Suspend only every other time

Postby dougie » 10/08/2010, 18:35

Running #!CrunchBang Statler a2 Linux on Samsung N150-11, adding samsung-backlight and samsung-tools made a big improvement, thank you, voRia!

One thing that is not working well is Suspend on lid close -- it works perfectly every other time the lid is closed; the other times it turns off the backlight but does not suspend! This is a safety issue: packing a running netbook could lead to overheating.

CrunchBang is Debian Squeeze based; I am using the XFCE4 version, so xfce4-power-manager. But I suspect the issue is in the kernel or BIOS. If I look at /proc/acpi/button/lid/LID0/state I see that it reports closed every other time the lid is open.

Do you know of any quirk or setting I can make to fix this?

Searching the web I have found several references to this problem, some quite old; most of them refer to ACPI scripts for workarounds, but ACPI is not installed on my system, just HAL, pm, and samsung-tools.

Here are a few relevant links

https://bugs.launchpad.net/ubuntu/+sour ... comments/8
http://ubuntuforums.org/showthread.php?t=406250
http://ejahn.net/Members/eric/stories/t61_etch

Have others seen this problem? Have you found a workaround?

Thanks!

e

dougie
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Re: Lid switch on N150-11 causes Suspend only every other ti

Postby dougie » 24/08/2010, 22:13

I was hoping the 2.6.32-20 linux-kernel recently released to squeeze might solve the problem, especially since -19 changelog included "Add samsung-laptop driver." But, the problem persists.

I have filed a debian bug report.

DarrellKavanagh
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Re: Lid switch on N150-11 causes Suspend only every other ti

Postby DarrellKavanagh » 22/12/2010, 23:20

Same problem exists with N210 Plus (Ubuntu 10.10, BIOS 01KY).

Workaround: disable "Wake on lid open" in the BIOS. the machine will then suspend every time the lid is closed, but raising the lid no longer resumes, - use the power switch to resume.

dougie
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Re: Lid switch on N150-11 causes Suspend only every other ti

Postby dougie » 09/03/2011, 4:36

DarrellKavanagh, thank you. This workaround is very nice; it works great on my N150+.


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