acpi resume problems with thinkpad t42

Thomas Spreng spreng at socket.ch
Tue Mar 20 12:49:16 UTC 2007


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Andrew Elmore wrote:
> On Thu, Mar 15, 2007 at 10:07:59PM +0100, Thomas Spreng wrote:
>> Anyone has an idea what might cause the problem or can anyone
>> confirm the suspend/resume works on a t42 running 6.2?
> 
> I have suspend/resume working on my T42p, running 6.2-STABLE as of 
> early February.
> 
> The loader.conf settings that I have in addition to yours are:
> 
> hw.acpi.reset_video=1

thanks, that did the trick. Now I can resume again from S3. The problem
seems to stem from changing the default value of this variable from 1 to
0 (sometime in the last year).

Looks like the handbook needs a slight update concering this sysctl mib:
http://www.freebsd.org/handbook/acpi-debug.html#AEN16655

> hw.syscons.sc_no_suspend_vtswitch=1
> hw.pci.do_power_nodriver=3
> 
> hope this helps, Andrew 

cheers,

tom

- --
Thomas Spreng <spreng at iam.unibe.ch>

Institute of Computer Science and Applied Mathematics
University of Bern
Switzerland
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